JP4749067B2 - Building steel structure column beam joint surface wave bead welding method - Google Patents

Description

The present invention relates to a method for welding a steel pipe column, an H-shaped steel column, or an H-shaped steel beam-column joint of a building steel structure.

In a conventional steel frame structure, as shown in FIG. 1, a dice 2 is manufactured from a steel pipe short pipe 5S and a diaphragm 1 by a small assembly, and a beam bracket 4 is attached to the dice by a middle assembly. After manufacture, a steel pipe shaft 5 is attached to the panel zone 2 in a large assembly, and a column with a beam bracket, that is, a one-column column, is manufactured. That is, the production is divided into three assembly steps.

In the case of butt welding joining a square steel pipe or a round steel pipe column of a building steel structure and a beam flange, as shown in FIG. 1 and FIG. 38, the backing metal 10 is closely attached to the back side of the end of the beam flange 4, and one-side welding is performed from the side with the groove.

In addition, as shown in FIG. 7, the workpiece before mounting the beam bracket 3B manufactured by the assembly welding and the subsequent main welding from the steel pipe shaft 5 and the short steel pipe 5S / diaphragm 1 or the solid integrated dice, etc. The body. Further, a work having a beam unit 3B attached from a column body and a transport unit length from a steel factory to a construction site is referred to as a section.
As shown in FIG. 7, there is a method in which the column body 34 is manufactured and then the beam bracket 3 </ b> B is attached to manufacture a one-node column. This method is called a column body method. In this column method, because the column is long, the column is laid down horizontally and the beam bracket is set up vertically on the column, or the beam bracket is horizontally applied to the side of the column. The welding to the column is either horizontal welding or vertical welding.

On the other hand, there is the following method for one-side welding without using the backing metal 10 of FIG.
As shown in FIG. 3, this is a method of performing back wave welding 36 by abutting welding members 35.
As shown in FIG. 4, by butt welding member 5,4 or 1, is a method of performing melt-through bead welding by applying a non-consumable steel backing metal such as copper on the back side with no groove member 4 (Japanese Patent Application No. Hei 8-60098 (Japanese Patent Laid-Open No. 9-225635: Patent Document 1) ).
As shown in FIG. 5, it is a method in which welding is performed on the back surface of one end portion of one member 18 and welding is performed on one side (Japanese Patent Application No. 2000-202582 (Japanese Patent Laid-Open No. 2001-259830: Patent Document 2)) , WAWO Method Called).
As shown in FIG. 6, at a bead 42 placed beforehand in the welding planned portion of the plate 1 to be welded, a method of welding from the front side is set to match the groove of the member 5 the bead 42 placed its (Japanese Application No. 4-162208 (Japanese Patent Laid-Open No. 5-177347: Patent Document 3 ).
Japanese Patent Laid-Open No. 9-225635 JP 2001-259830 A JP-A-5-177347

As shown in FIG. 1 and FIG. 2, generally, a ledge groove 34 is applied to the end of the beam flange 4 at the joint between the column 5 and the beam 3, and the back side of the end of the beam flange 4, ie, the inner surface is supported. A method of performing welding on one side from the side having a groove by abutting the gold 10 in close contact and performing tack welding 8 on the center side of the back side of the beam flange and then contacting the beam flange 4 and the diaphragm 1 is as follows. There is a problem that the root part exists on both the beam flange 4 side and the diaphragm 1 side, and the root part is liable to be defective unless both of them are sufficiently melted by the first layer welding. is there. Therefore, a large value of about 7 mm must be used for the distance between the root portions, that is, the gap. Therefore, there is a problem that the amount of welding in the weld groove increases and the number of man-hours increases. Further, in this conventional method, gaps remain between the back surface of the beam flange 4 and the backing metal 10 and between the diaphragm 1 and the backing metal 10, and stress concentration acts behind these gaps to increase the strength of the beam flange joint. There is a problem of reducing.

On the other hand, there is a method of construction without using backing metal.
As shown in FIG. 3, the one-side welding method in which the welding member 35 is abutted and a welding arc is emitted from the groove side of the welding member 35 from the welding torch 37 to perform the back wave welding 36 has no backing metal, so that the molten metal It is necessary to secure a fairly advanced skill and groove accuracy in order to properly obtain the back bead so that the melt does not melt. Actually, it is extremely difficult to secure the accuracy of the steel material and the manufacturing accuracy of the steel parts. The current situation is that back wave welding is not widespread.

As shown in FIG. 4, the method of performing back wave welding by abutting the welding members 4 and 5 or 1 and applying a non-consumable backing metal 10A such as copper to the back side of the member 5 is as follows. It is difficult to ensure a sufficient weld leg length on the back side of the beam flange and the column corresponding to the member 5 or the diaphragm side corresponding to the member 1. Therefore, it may be difficult to ensure sufficient strength of the beam flange joint.

As shown in FIG. 5, the method of performing welding overlay 14 on the back surface of the end portion of one member 18 and performing one-side welding requires man-hours for overlay welding.
As shown in FIG. 6, the bead 42 is placed in advance on the assumed welded portion of the diaphragm plate 1 on the inner side of the square steel pipe 5 to be welded, that is, the bead-on plate, the groove is aligned with the place bead 42, and the square steel pipe is placed. In the method of setting 5 and welding from the front side where the groove is present, it is difficult to set the position where the placing bead 38 is placed, and the shape of the placing bead 38 is formed without the groove of the member 5 having poor accuracy. There is a problem that it is difficult to ensure accurately according to the shape of the member 5.

In order to solve the problem, stable back wave welding is performed, stress concentration is prevented, the welding groove cross-sectional area is reduced, the welding man-hours are reduced, the mounting set man-hour of the backing metal is reduced, and the back side of the beam flange is sufficient. A construction method that secures a long leg length and that does not depend on materials and manufacturing accuracy must be developed. As a result of examining each of these problems individually and examining the optimum method, the conventional method of attaching the backing metal in close contact with the back side of the end of the beam flange was canceled, the backing metal was omitted, and the flange was omitted. Omitting the copper backing on the back side, omitting the overlay welding on the back side of the flange, installing the column horizontally by the column body method, making the beam vertical or horizontal and directing the beam at the right angle to the column It has been clarified that a stable bead can be formed on the front side with the groove groove when horizontal fillet welding or vertical fillet welding is performed while securing a sufficient weld leg length from the back side. Hereinafter, the stable bead obtained by welding from the back of the beam flange to the front side is referred to as “surface wave bead”, and the method of forming the stable bead is “surface wave welding method” or “surface wave bead welding method”. That's it. Then, by forming a bead on the front side of the flange with the groove, and then performing butt welding on the front side of the beam end groove, welding of a high-strength beam flange with less stress concentration is achieved. can get.
In other words, after setting the vertical plate with a single-sided bevel at a right angle to the horizontal plate, it is also placed on the horizontal plate on the reverse side of the vertical plate to serve as overlay welding for the vertical side of the vertical plate. Place fillet and perform fillet welding from the back side, or place fillet weld from the back side of the reed groove on the standing plate to serve as both the backside overlay welding of the standing plate and the horizontal plate placing bead. A method of forming a surface wave bead on the front side of the surface is used. Here, a bead in which a weld bead wave is formed on the front side by welding from the back side of the welded member is referred to as a “front wave bead”. This is called “wave bead welding”.

In the invention according to claim 1, the first configuration of the invention is that in an architectural steel structure, an H-shaped steel column placed horizontally or a member of a welded portion thereof is set in a vertical direction or in a horizontal direction, that is, at a right angle. A section beam flange or a stiffener attached between the upper and lower flanges of the H-shaped steel flange is attached to the end with a grooved shape or perpendicular to the H-shaped steel beam or its welded part placed horizontally. The H-shaped steel column flange or the stiffener end portion with the groove shape is applied, and the second configuration of the invention is to connect the member and the end portion to the H-shaped steel flange or the Horizontal fillet welding or vertical fillet welding is performed from the back side of the stiffener end without a groove, and the third configuration of the invention is on the front side of the H-shaped steel flange or the stiffener end groove. A stable bead is formed by forming a weld bead. The fourth configuration of the invention is to perform butt welding on the beam end groove side by laminating on the front wave bead on the front side, and a method for performing these four configurations. is there.
The novelty of the invention according to claim 1 is different from the case of FIG. 3 of the conventional method in that it is a double-sided welding using a surface wave bead for fillet welding of a building steel structure using orthogonal H-shaped steel, Unlike the case of Fig. 4 where the consumable copper backing 10A is used, the backing is not used in both-side welding using the fillet bead of fillet welding of the building steel structure using orthogonal H-shaped steel. Then, after performing overlay welding 14, groove processing is performed, and one-side welding is performed. Unlike in the case of FIG. 5, in an architectural steel column beam structure using H-shaped steels that are orthogonal to each other, groove processing is performed prior to surface wave welding from the back surface, and horizontal fillet welding or vertical fillet welding is performed. Different from Fig. 6 in which both sides are welded using a surface wave bead, and one side is welded from the front side using a placing bead and the back surface is welded to the back side. The surface layer bead of fillet welding is placed on the first layer from the back side without a groove on the first layer, and the two layers are welded on both sides by laminating on the front side where the groove is present. The inventive step according to claim 1 is that the H-shaped steel of the column or beam is placed horizontally, the beam or column is addressed at right angles, the first layer is placed with a surface wave bead from the back side without a groove, The second and subsequent layers are laminated on the front side with a groove and welded on both sides, and the effects are good workability and great joint strength effects as described in “Effects of the Invention”.

In the invention according to claim 2, the first configuration of the invention is to manufacture a one-column column before mounting the beam bracket from a circular steel pipe, a square steel pipe or an H-shaped steel in a building steel structure. The second configuration of the present invention is to apply the flange end portion with the groove shape of the H-shaped steel bracket beam vertically or horizontally to the joint portion of the pillar body placed horizontally. In the third configuration, the fillet portion and the end portion are subjected to horizontal fillet welding or vertical fillet welding from the back side of the flange without the groove, and a bead is formed on the front side of the flange with the groove. That is, the fourth structure is a method of attaching a beam bracket after manufacturing a column by performing butt welding on the front side with the beam end groove. The novelty and inventive step of the invention according to claim 2 is different from the invention according to claim 1 in that a column body is manufactured from a round steel pipe or a square steel pipe. Have sex.

In the invention which concerns on Claim 3, the 1st structure of invention is manufacturing a column body from a square steel pipe, a round steel pipe, or H-section steel in a building steel frame structure, and the 2nd composition of the invention is The horizontal end of the column body is directed to the end of the flange with groove-shaped beveling of the H-shaped steel bracket beam that is vertical or horizontal, and the third configuration of the invention includes: Forming a bead on the front side where the groove of the beam flange exists by performing horizontal fillet welding or vertical fillet welding from the back side without the groove of the beam flange to the joint portion and the end, A fourth configuration of the invention is to perform horizontal fillet welding or vertical fillet welding, extend the fillet weld, and perform overlay welding on the base material of the column body. In the fifth configuration, the butt welding on the front side with the beam end groove is then performed, and the overlay welding of the side surface of the beam end is performed. And carrying out, is to increase the beam width in the beam end, the sixth configuration of the invention is a method using attaching the beam brackets After fabricating the column. In addition to the inventive step of the invention according to claim 2, the novelty of the invention according to claim 3 is that by extending fillet welding of surface wave welding and performing overlay welding on the base material of the column body. is there. Further, the inventive step according to claim 3 is that, in addition to the inventive step according to claims 1 and 2, a great improvement in joint strength can be obtained by overlay welding that is continuous with fillet welding. .

In the invention according to claim 4, the first configuration of the invention is that, at a construction site or the like, at the building steel structure column beam connection portion, the H-shaped steel column or the steel pipe column member installed vertically, The second configuration of the invention is to create a state in which the processed beam flange end is horizontally directed, and in this state, on the back side without the groove of the beam flange, Overlay welding is performed on the column base material in a lateral orientation over the entire length of the beam width. The third configuration of the invention is that the overlay welding and the beam are performed from the back side of the beam flange without a groove. The transverse or upward welding with the flange end portion is performed in one pass or two passes or more, and a bead is formed on the front side where the groove of the beam flange exists, and the third configuration of the invention is Thereafter, column beam connection is performed by performing butt welding on the beam end groove side on the front side. The novelty of the invention according to claim 4 is that under the beam flange, the beam flange end subjected to the lathe groove processing is horizontally directed to the H-shaped steel column or steel pipe column member installed vertically. The bead is placed on the side of the vertical column on the side and on the side opposite to the groove side, and a front bead similar to claim 2 is formed on the groove side. The inventive step according to claim 4 is:
A surface wave weld bead is formed on a member of an H-shaped steel column or a steel pipe column installed vertically, and in addition to the effect of the invention similar to claim 2, the effect described in “Effect of starting point” is obtained. is there.

In the invention according to claim 5, the first configuration of the invention is based on the configuration of the invention according to claim 1, 2, 3, or 4, and the second configuration of the invention is the beam flange. A water-cooled or non-water-cooled copper or copper alloy gold or glass fiber, glass powder, glass rod, flux powder, solid flux, ceramic powder, solid ceramic, coated arc welding rod or these The second aspect of the invention is to apply horizontal fillet welding or vertical fillet welding from the back side with the groove, and form a bead on the front side with the groove. Is to take the way.

In the invention according to claim 6, the first configuration of the invention is based on the configuration of the invention according to claim 1, 2, 3, or 4, and the second configuration of the invention is at least the beam. Filling or installing metal powder, a cut wire, a coated welding rod or a mixture thereof in the front groove of the flange, the third configuration of the invention is the horizontal fillet welding or standing from the back side where the groove is present. It is to perform a fillet welding and form a bead on the front side with a groove.

The invention according to claims 1 and 2 has the following effects when applied to a H-shaped steel column placed horizontally or a member of a welded portion thereof in contrast to the conventional method using a backing metal .
The number of welding man-hours for beam flanges or stiffener members with a beveled groove is reduced by about half in an architectural steel structure.
Compared with a joint that has been conventionally used as a backing metal, there are fewer welding defects, and the stress concentration is reduced and the joint strength is increased.
Since the surface wave welding is also used for both the build-up welding and the assembly welding on the back surface of the surface wave welding beam flange, the man-hour is reduced by about 30% or more than the build-up welding method.
Surface wave welding that is more stable than ordinary back wave welding can be obtained.
A wider and larger bead width can be obtained than the backside copper welding method, and stable quality and high strength can be obtained.
From the above (1) to (5), the cost can be reduced as compared with the conventional method using backing metal.

In the invention according to claim 3, in addition to the effect of the invention according to claims 1 and 2, when applied to a column body manufactured from a round steel pipe, a square steel pipe or an H-shaped steel, compared to the conventional method using a backing metal. Has the following effects.
The strength of the joint is higher than that of the beam flanges of the inventions according to claims 1 and 2.
Good beam flange joint welding workability.
Overlay welding on the side of the beam flange is easy.

The invention according to claim 4 has the following effects as compared to the conventional method using a backing metal.
If surface wave welding is performed in a lateral or upward posture from the lower side of the beam flange, the tolerance of the groove gap dimensional error increases and the welding of the root portion can be stabilized.
Since there is no backing metal, there is no stress concentration and the number of welding processes that improve strength can be reduced.
It is suitable for welding at construction sites because the tolerance of groove gap dimensional error is large.

In the invention according to claim 5, as compared with the invention according to claim 1, 2, 3, or 4, the welding operation can be made more stable.

In the invention according to claim 6, compared to the invention according to claim 1, 2, 3, or 4, welding can be performed with higher efficiency. Further, since the beams can be joined with the groove accuracy tolerance being large with the column upright, it is suitable for on-site welding of the beams.

An embodiment of the invention according to claim 1 will be described.
FIG. 8 shows an external view of a state in which the H-shaped steel beam flange 4 and the stiffener 25A end portion 38 with the shape of the groove are addressed to the H-shaped steel column 3C placed horizontally. . As described above, in the steel frame construction using the H-shaped steel of the column and the beam, it is usual to install the stiffener 25A that supports the flange 4 of the H-shaped steel beam 3B with the flange 4 of the H-shaped steel column 3C interposed therebetween. . The next step is to perform surface wave bead welding joining to the H-shaped steel column 3C in which the stiffener end portion with the groove shape and the H-shaped steel beam flange end portion are placed horizontally. FIG. 13 shows the details of the procedure and the embodiment, but the backing metal 10 as shown in FIG. In addition, a large bead having a leg length of 5 mm or more is formed on the back side with respect to both members. Such a large stable bead on the back side is not easily obtained even when a non-consumable backing metal such as copper is used. Therefore, there is no concern about the unstable backside welding of FIG. 3 and the thin and small backside bead of FIG. And there also exists an effect that it becomes a substitute of the overlay welding constructed | assembled on the back surface of FIG. Further, in the present invention, since the H-shaped steel flange 4 is set in advance on the H-shaped steel column 3C in FIG. 8, it is necessary to specify the position where the overlay welding, that is, the placing bead 42 is placed as shown in FIG. Further, it is not necessary to adjust the shape and size of the placing bead 42 in consideration of the position of the member 5 to be set after placing the placing bead 42. In FIG. 6, after placing the bead 42 in advance on the diaphragm 1 without the square steel pipe column 5, the square steel pipe column 5 is placed and set in the bead 42, and then the first layer welding is performed. In the present invention, the first layer welding is performed as surface wave bead welding from the back side without a groove in the state where the H-shaped steel beam is set, and the subsequent lamination is performed on the front side where the groove exists. Perform by both-side welding.

Another embodiment of the invention according to claim 1 will be described. FIG. 9 shows an external view of the H-shaped steel beam placed horizontally, with the H-shaped steel column flange standing upright and the stiffener end with the groove-shaped groove working. In this case, both the column and the beam are H-shaped steel, and FIG. 8 is an application example in which the positional relationship between the column and the beam is simply switched. The difference is that FIG. 9 is a beam through in contrast to the column through in FIG.

Another embodiment of the invention according to claim 1 will be described. FIG. 10 is a front view showing a state in which an end portion 38 with a re-shaped groove of the stiffener 25A standing at a right angle between H-shaped steel flanges is directed to a horizontally placed H-shaped steel beam or column. FIG. 10A shows a case where the H-shaped steel base material is installed, and FIG. 10B shows a case where the H-shaped steel is installed on the welded joint. In both cases, the construction conditions are the same as in FIG. 8, but after the horizontal fillet welding of the lower side of the stiffener 25A, the opposite side is welded by reversing the top of the H-section steel. It is necessary to (1) use the rod as a reverse method, (2) use a high current, (3) increase the welding speed, and (4) reduce the arc voltage so that the surface wave bead is sufficiently formed. is there.

Another embodiment of the invention according to claim 1 will be described. FIG. 11 shows an external view of the H-shaped steel column 3C placed horizontally and the diaphragm 1 welded to the end 38 with the shape of the groove-shaped groove of the H-shaped steel beam flange 3C standing at a right angle. The figure is shown. In this case, the thickness of the diaphragm 1 is about 1.25 to 2 times thicker than the flange thickness of the H-shaped steel beam 3B, and the diaphragm 1 and the H-shaped steel column 25 protruding from the column 3C by about 20 mm or more. The welded joint is made so that the column 3C is in a horizontal state, and an H-shaped steel beam 3B standing at a right angle with respect to the column 3C is placed on the diaphragm 1, and the flange shape of the flange of the H-shaped steel beam 3B is placed. This is the same as in FIG. 8 except that the end portion with machining 38 is addressed, and the end portion 38 with the H-shaped steel beam flange is formed on the diaphragm 1. The joining method and the effect of the end portion of the 3B flange with the shape of the groove are also the same.

Another embodiment of the invention according to claim 1 will be described. FIG. 12 shows an end portion 38 of the H-shaped steel beam flange 4 with a beveled groove formed at a right angle with respect to the diaphragm 1 without protruding from the H-shaped steel column 3B and the welded column 3C. The external view of the state which addressed is shown. In this case, the thickness of the diaphragm 1 is about 3 to 6 mm or more thicker than the flange thickness of the H-shaped steel beam 3B, and the diaphragm 1 not protruding from the column 3C and the H-shaped steel column 3C are welded. The column 3C is placed in a horizontal state, and an H-shaped steel beam 3B standing at a right angle to the column 3C is placed on the diaphragm 1, and the flange 4 of the flange 4 of the H-shaped steel beam 3B is attached. Same as FIG. 8 except that the end 38 is addressed and the H-shaped steel column 3C and the diaphragm are combined and the end 38 with the H-shaped steel beam flange is formed on the diaphragm 1. The joining method and the effect of the end portion 38 with the reshape groove processing of the flange of the H-shaped steel beam 3B are the same. In FIG. 12, since the height position of the diaphragm 1, the height position of the column 3C, and the height position of the weld 7 of the column 3C are substantially the same, the back side fillet welding and the front side joint welding of the beam flange 4 are similar to the downward welding. The conditions under which welding can be performed with a large current are ensured by existing horizontally and horizontally from below the groove and supporting the molten metal from below. Then, the web 9 and the beam flange 4 are welded to complete the welding of the column beam joint.

Another embodiment of the invention according to claim 1 will be described. FIG. 13 shows the surface wave bead welding procedure for a building steel frame. FIG. 13 (a) shows the horizontal opening of the H-shaped steel flange 4 or the stiffener 25A. In the state where the end portion 25A with the tip is addressed, or with respect to the steel pipe 5 placed horizontally, the end portion 25A with the H-shaped steel beam flange or stiffener of the stiffener standing upright at the right angle in the horizontal direction is addressed. Fig. 13 (b) shows a situation where horizontal fillet welding or vertical fillet welding is performed from the back side without a groove to form a surface wave bead 41 in the groove, Fig. 13 (c) is A situation is shown in which joint welding is performed by welding the second and subsequent layers on the first layer weld on which the surface wave beads 41 are formed. The joint groove setting state in the case of FIG. 13A is that the groove angle is 20 ° to 45 °, the groove gap is 0 to 8 mm, and for example, the groove angle is about 35 °. Is about 2 to 4 mm. In (b) of FIG. 13, TIG welding, carbon dioxide gas welding, MAG welding, or the like is used as the welding method, and as an example, carbon dioxide welding is performed by surface fillet welding by horizontal fillet welding from the back side without a groove. In this case, the welding wire diameter is 1.2 mm, and the welding current is 200 to 400 amps, preferably 250 to 350 amps. Also, when performing surface wave welding by standing fillet welding from the backside where no carbon dioxide is welded, the welding wire diameter is 1.2 mm and the welding current is 150 to 350 amperes, preferably 200 to 300 amperes. Use. In this way, surface wave welding can be formed on the front side where the groove exists, and the backing metal 10 as shown in FIG. In addition, a large bead of 5 mm or more, such as a leg, is formed on both sides with stability. Such a large stable bead on the back side is not easily obtained even when a non-consumable backing metal such as copper is used. Therefore, there is no concern about the unstable backside welding of FIG. 3 and the thin and small backside bead of FIG. And there also exists an effect that it becomes a substitute of the overlay welding constructed | assembled on the back surface of FIG. Further, in the present invention, since the H-shaped steel flange of the column and the beam is set first, as shown in FIG. 6, the position where the build-up welding, that is, the placing bead 42 is set before the setting of the H-shaped steel flange is specified. There is no need to adjust the shape and size of the placing bead 42 in consideration of the position of the member 5 to be set after placing the placing bead 42. In FIG. 6, assuming the position where the square steel pipe column 5 is set, a bead 42 is preliminarily placed on the diaphragm 1 in a position corresponding to the back side of the square steel pipe 5 without the square steel pipe column 5. After that, the square steel pipe column 5 is placed and set on the bead 42, and then the first layer welding is performed by one side welding from the front side where the groove is present. In the present invention, the first layer welding is a state in which an H-shaped steel beam is set. After performing the surface wave bead welding from the back side without the groove, the subsequent lamination is performed on the front side where the groove is present, and then both sides are welded. In the present invention, the first layer welding is performed as a surface wave bead welding from the back side without the groove, and then the subsequent lamination is performed on the front side where the groove is present, and then the both side welding is performed. That is, as shown in FIG. 13C, following the surface wave welding obtained in this way, for example, horizontal butt welding and fillet melting are performed on the front side where the groove is present in the subsequent pass. To complete the joint welding. In this case, the welding current in the second layer welding is horizontal butt welding by carbon dioxide gas welding, the welding wire diameter is 1.2 to 1.4 mm, and the welding current is 250 to 450 amperes, preferably 300 to 350 amperes. Use. These conditions are merely examples, and can be varied depending on the welding wire, welding skill, and the like. Usually, when carrying out the conventional sideways welding, it is 100 to 200 amps, but the conditions under which such a stable surface wave can be formed and welding can be carried out with a large current in the case of front side joint welding as with downward welding are as follows. The horizontal plate, that is, the horizontally placed H-shaped steel beam flange 4 or the column 5 is present horizontally and horizontally from below the groove, and the molten metal is supported from below.

Another embodiment of the invention according to claim 1 will be described. In FIG. 14, the surface wave bead welding procedure in case a groove gap is as large as 5-10 mm with an architectural steel frame is shown. Fig. 14 (a) shows the horizontal position of the H-shaped steel placed horizontally or vertically, with the H-shaped steel beam flange standing upright or the stiffener end with the groove-shaped beveled end facing the bead. Place the bead on the back side with no mark. Fig. 14 (b) shows a horizontal wave in the front groove by horizontal fillet welding between the bead and the H-shaped steel beam flange or the end of the stiffener with a groove-shaped groove from the back side where there is no groove. FIG. 14 (c) shows a situation in which the second layer and subsequent layers are welded on the first layer weld on which the surface wave bead is formed, and the joint welding is performed.

An embodiment of the invention according to claim 2 will be described.
FIG. 15 shows the height of the H-shaped steel beam flange 4 standing at a right angle with respect to the square steel pipe column 5 and the welded diaphragm 1 in which a column body made by combining the square steel pipe 5 and the diaphragm 1 manufactured by the conventional method is placed horizontally. The external view of the state which addressed the edge part 38 with a shape groove process is shown. In this case, the thickness of the diaphragm 1 is about 1.25 to 2 times thicker than the flange thickness of the H-shaped steel beam 3B, and the diaphragm 1 and the H-shaped steel beam 3B protrude from the column 5 by about 20 to 25 mm. And the column 5 is placed in a horizontal state, and an H-shaped steel beam 3B standing at a right angle to the column 5 is placed on the diaphragm 1, and the flange shape of the H-shaped steel beam 3B is placed. This is the same as in FIG. 8 except that the end portion 38 with groove processing is addressed, and the end portion 38 with groove-shaped groove processing of the H-shaped steel beam flange 4 is addressed on the diaphragm 1. The joining method and the effect of the end of the flange of the shaped steel beam 3 </ b> B with the shape groove processing are the same.

Another embodiment of the invention according to claim 2 will be described.
In FIG. 16, a square steel pipe 5, a square steel pipe short pipe 5 </ b> S and a diaphragm 1 are combined and welded, and the diaphragm 1 is manufactured by a brimless construction method in which a column body is manufactured without protruding from the outer surface of the square steel pipe column 5. An external view of a state in which the end portion 38 with the re-shaped groove processing of the H-shaped steel beam flange 4 standing at a right angle with respect to the joint portion of the square steel pipe column 5 placed is shown. In this case, the thickness of the diaphragm 1 is about 3 to 6 mm or more thicker than the flange thickness of the H-shaped steel beam 3B, and the diaphragm 1 and the square steel pipe column 5 not protruding from the column 5 are welded and joined. 5 is placed in a horizontal state, and an H-shaped steel beam 3B standing at a right angle with respect to the column 5 is placed on the diaphragm 1, and an end portion 38 with a flange-shaped groove of the flange of the H-shaped steel beam 3B is provided. The column body is manufactured by combining the square steel pipe column 5, the square steel pipe short tube 5 S and the diaphragm 1, and the end portion of the H-shaped steel beam flange 4 with the reshape groove processing on the diaphragm 1. 8 is the same as in FIG. 8, and the joining method and the effect of the end portion 38 with the shape of the groove 1 of the flange 1 of the H-shaped steel beam 3B are the same. FIG. 22 shows an end portion 38 of the H-shaped steel beam flange 4 with a beveled groove formed on the vertical portion of the rectangular steel pipe column 5 manufactured by the flangeless method and placed horizontally. Sectional drawing of the condition which implements wave welding and overlaps the surface wave welding part and the brimless welding part 17 by metallurgical integration is shown. Surface wave welding is applied from the inside of the H-section steel 3B. 16 and 22, the height position of the column 5 diaphragm 1, the height position of the column 5, and the welding height position of the column are substantially the same. Conditions under which welding can be performed are ensured by being widely present horizontally in the lateral direction from below the groove and supporting the molten metal from below. Then, the web 9 and the short pipe 5S are welded to complete the welding of the column beam joint.

Moreover, in FIG. 17, the end portion 38 of the flange 4 of the H-shaped steel beam 3B is horizontally directed to the joint portion of the square steel pipe column 5 which is manufactured by the brimless method and placed horizontally. An external view in a bent state is shown, and an embodiment in which the end portion 38 and the diaphragm 1 are subjected to surface wave welding is shown.

Another embodiment of the invention according to claim 2 will be described.
FIG. 18 shows a joint part of a square steel pipe column 5 which is manufactured by an integrated method in which a welding assembly composed of a diaphragm 1 and a rectangular steel pipe short pipe 5S, that is, a dice 32, is replaced with a solid material. In contrast, an external view of the H-shaped steel beam flange 4 standing at right angles to the end portion 38 with a re-shaped groove is shown. From this state, the end portion 38 with the reshape groove processing and the solid dice 32 are surface wave welded, and the surface wave welded portion, the dice 32 and the welded portion 7 of the column 5 are combined. Then, the web 9 and the dice 32 are welded to complete the welding of the column beam joint.

Another embodiment of the invention according to claim 2 will be described.
Fig. 19 shows a state in which the end portion of the H-shaped steel beam flange with a beveled groove is attached to the welded portion of the joint portion of a square steel pipe column manufactured by the slot method and placed horizontally. The external view of is shown. In addition, in FIG. 23, the end portion of the H-shaped steel beam flange with a beveled groove is vertically applied to the joint portion of a square steel pipe column manufactured by the slot method and placed horizontally. Sectional drawing of the situation which implements is shown. In the slot method, a through-groove that can be set from the length of the beam flange 4 to the entire circumference of the steel pipe column is formed on the side surface of the steel pipe column 5 and an inner diaphragm is inserted into the slot portion inside the steel pipe column 5. The inside diaphragm and the steel pipe column 5 refer to a construction method in which slot welding is performed from the outside of the steel pipe column 5. 23, since the position of the inner diaphragm 1 substantially coincides with the position of the slot welded portion, the installation position of the beam flange 4 is at the center of the slot welded portion 17. After setting the beam flange 4 in the slot welded portion, surface wave welding is performed as shown in FIG.

Another embodiment of the invention according to claim 2 will be described.
In FIG. 20, the end portion 38 with the reed groove processing of the H-shaped steel beam flange 4 standing at a right angle is assigned to the joint portion of the round steel pipe column 5 manufactured by the conventional method and placed horizontally. The external view of a state is shown.
The H-shaped steel beam flange 4 is placed at a right angle with respect to the rounded steel pipe column 5 and the welded quadrilateral diaphragm 1 which are horizontally placed by combining a square steel pipe column 5 and a diaphragm 1 manufactured by a conventional method. The external view of the state which addressed the edge part 38 with a shape groove process is shown. In this case, the thickness of the diaphragm 1 is about 1.25 to 2 times thicker than the flange thickness of the H-shaped steel beam 3B, and the diaphragm 1 and the H-shaped steel column 5 protruding from the column 5 by about 20 mm or more. Welding is performed and the column 5 is in a horizontal state, and the H-shaped steel beam 3B standing at a right angle to the column 5 is placed on the diaphragm 1, and the flange 4 of the H-shaped steel beam 3B is opened. This is the same as in FIG. 8 except that the end portion 38 with the tip is addressed, and the end portion 38 with the shape of the H-shaped steel beam flange 4 on the diaphragm 1 is addressed. The joining method and the effect of the end portion with the reshape groove processing of the flange 4 of the steel beam 3B are the same.

Another embodiment of the invention according to claim 2 will be described.
FIG. 21 shows a round steel pipe column in which the outer diameter of the round steel pipe 5 and the length of the side of the diaphragm 1 are substantially the same, and a column body is produced from the round steel pipe 5 and the diaphragm 1 by a brimless method and placed horizontally. The external view of the state which addressed the edge part 38 with the shape-shaped groove process of the H-shaped steel beam flange 4 stood | rightened with respect to the joint part diaphragm 1 of 5 is shown. In this case, since most of the diaphragm 1 protrudes from the round steel pipe 5 except for a part, the thickness of the diaphragm 1 is about 1.25 to 2 times thicker than the flange thickness of the H-shaped steel beam 3B. Then, the diaphragm 1 and the round steel pipe column 5 are welded and joined so that the column 5 is in a horizontal state, and the H-shaped steel beam 3B standing at a right angle with respect to the column 5 is placed on the diaphragm 1; The end of the H-shaped steel beam 3B flange with a groove-shaped groove 38 is addressed, and a square steel pipe column and a diaphragm are combined to form a groove-shaped groove with a H-shaped steel beam flange on the diaphragm 1. Except for the end portion 38, the same method as that of FIG. 8 is employed, and the joining method and the effect of the end portion 38 having the shape of the groove of the H-shaped steel beam 3B are the same.

An embodiment of the invention according to claim 3 will be described.
In the invention according to claim 1 or 2, as shown in FIG.
When horizontal fillet welding or vertical fillet welding 43 is performed from the back side of the beam flange 4 without the groove, and the bead 41 is formed on the front side of the beam flange 4 with the groove, the beam 3B is replaced with the members 1, 4 or 5 is fixed by performing tack welding 8 on 5, and the bead 41 is formed, and the fillet weld 43 is extended by about 10 to 40 mm, preferably about 15 to 25 mm, and the member or the pillars 1, 4. Or, overlay welding 45 is performed on the base material of 5,
Thereafter, as shown in FIG. 24 (b), the front side butt weld 44 with the beam end groove is carried out, and the butt weld 44 is extended by 10 to 40 mm, preferably 15 to 25 mm. Or, overlay welding 45 is performed on the base material of the pillars 1, 4 or 5,
Furthermore, as shown in FIG. 24 (c), by performing build-up welding 46 on the side surface of the beam end, and increasing the beam width at the beam end,
This is a method of manufacturing a column beam joint, wherein after the column body is manufactured, the beam bracket 3B is attached. The bead of the build-up weld 46 on the side surface of the beam end can be finished smoothly by performing grinder finishing according to the design requirements of the joint.

An embodiment of the invention according to claim 4 will be described.
In FIG. 25, the H-shaped steel beam 3 is directed to the H-shaped steel column 3 </ b> C or the steel pipe column 5 installed vertically, and is built up in a horizontal posture on the lower base material of the flange 4 of the H-shaped steel beam 3. A cross-sectional view is shown in which welding 42 is performed, and the build-up welding 42 and the beam flange 4 are subjected to surface wave welding 41 in a lateral posture or an upward posture, and the column and the beam are butt-welded and joined. As shown in FIG. 25 (a), the end portion of the beam flange 4 which is formed into the shape of the groove-shaped groove 38 on the member of the H-shaped steel column 3C or the steel pipe column 5 which is installed vertically in the column-to-column connection portion of the building steel structure. Is welded in a horizontal or upward position using a welding torch 37 on the base material of the column below the beam flange 4, ie, on the lower side of the end of the beam. As shown in FIG. 25 (b), a welding torch 37 is used to connect the build-up weld 42 and the end of the beam flange 4 from the back side without the groove of the beam flange 4. Then, welding is performed sideways or upward, and a bead is formed on the front side where the groove of the beam flange 4 is present to obtain a surface wave bead 41. Thereafter, as shown in FIG. A method of performing column beam connection by performing welding 17 on the beam end groove side will be described. As shown in FIG. 25 (d), when the surface wave bead shown in FIG. 25 (b) is formed, if the non-consumable copper or copper alloy gold 12 is installed on the groove side, the surface wave It is also effective to make it useful for the stable formation of the weld bead 41.

Another embodiment of the invention according to claim 4 will be described.
In FIG. 26 (a), the H-shaped steel beam 3 is applied to the slot welded portion 22 of the steel pipe column 5 manufactured by the slot method using the inner diaphragm 1 and vertically installed, and below the H-shaped steel beam flange 4. On the side, build-up welding 42 is performed on the base metal on the side surface of the column 5 and / or the slot welded portion 22 or both in a lateral orientation or an upward orientation, and the build-up welding 42 and the end portion of the beam flange 4 are subjected to surface wave welding 41. Next, a sectional view in which the slot welded portion and the beam flange are butt-welded 17 and welded to the column 5 and the beam web 9 to join the column and the beam is shown.
In FIG. 26 (b), the diaphragm 1 is manufactured by a brimless method without protruding from the outer surface of the column 5, and the H-shaped steel beam 3 is directed to the side surface of the steel pipe column 5 installed vertically. And the beam flange 4 are butted on the base material of the lower column 5 of the H-shaped steel beam flange 4 or on the welded portion 6 of the lower steel pipe column 5 and the diaphragm 1 in a lateral orientation or an upward orientation. Welding 42, overlay welding 42 and beam flange 4 end portion are surface wave welding 41, then diaphragm 1 and beam flange 4 are butt welded 17 and then column 5 and beam web 9 And FIG. 3 is a cross-sectional view of joining a column and a beam by butt welding 17. Another feature of this embodiment is that the welded portion 6 and welded portion 17 are overlapped and integrated metallurgically in the upper flange 4 of the beam, and the welded portion 6 and welded in the lower flange 4 of the beam. The parts 42 and 41 are overlapped and integrated metallurgically.
As shown in FIG. 26 (c), the diaphragm is protruded from the outer surface of the column 5 by about 20 to 25 mm, and overlay welding 42 is performed on the end portion of the diaphragm 1 in a lateral orientation or an upward orientation. This is a method in which the prime welding 42 and the end of the beam flange 4 are subjected to surface wave welding 41, and then the diaphragm 1 and the beam flange 4 are butt-welded 17 to each other.
Figure 26 (D), integrated dice 2A the constituted member is replaced by a solid dice from the diaphragm 1 and the Joint portion pillars short tube of a conventional method is manufactured in a state free from external surface of the shaft 5 overhang The H-shaped steel beam 3 is directed to the side surface of the steel pipe column 5 installed vertically, the side surface of the dice 2A and the beam flange 4 are brought into contact with each other, and the dice 2A of the column 5 below the H-shaped steel beam flange 4 or Overlay welding 42 is performed on the welded portion 6 between the lower steel pipe column 5 and the dice 2A in a lateral orientation or an upward orientation, and the overlay welding 42 and the end portion of the beam flange 4 are subjected to surface wave welding 41, and then The integrated dice 2A and the beam flange 4 are butt welded 17 and then the integrated dice 2A of the column 5 and the beam web 9 are welded, and the column and the beam are joined by butt welding 17 and joined. Another feature of this embodiment is that the welded portion 6 and welded portion 17 are overlapped and integrated metallurgically in the upper flange 4 of the beam, and the welded portion 6 and welded in the lower flange 4 of the beam. The parts 42 and 41 are overlapped and integrated metallurgically.

An embodiment of the invention according to claim 5 will be described.
27 (a) to 27 (e), in the invention according to claim 1, 2, 3, or 4, a water-cooled or non-water-cooled copper or copper alloy gold in the front groove 38 of the beam flange 4 12 or the invention according to claims 1, 2, and 3 from the back side without the groove 38 by applying the consumable material 12A made of glass fiber, flux, ceramics, coated arc welding rod or a mixture thereof. Performs horizontal fillet welding or vertical fillet welding, and in the invention according to claim 4, a lateral orientation or an upward orientation welding is performed to form a bead, that is, a surface wave bead 41 on the front side where the groove 38 is present. How to make it FIG. 27 (a) shows a situation where the beam flange 4 is directed in a direction perpendicular to the edge of the diaphragm 1, the outer surface of the beam flange 4 or the outer surface of the column 5, and FIG. Consumable type with a non-consumable gold 12 made of quadrilateral or polygonal copper or copper alloy or a glass fiber, flux, ceramics, coated arc welding rod or a mixture thereof in the groove 38 for the set of 27 (A) FIG. 27 (c) shows a situation in which the surface wave bead 41 is formed by applying the horizontal fillet welding or the vertical fillet welding from the back side of the flange 4 where the groove 4 is not provided, with the material 12A being applied. FIG. 27 (D) and FIG. 27 (E) show the quadrilateral used in FIG. 27 (B) after the surface wave welding shown in FIG. Or, instead of non-consumable metal 12 made of polygonal copper or copper alloy, Re A table wave welding implementation in the case of using a non-consumable copper or copper alloy losses 12 of round bar or round pipe. The outer diameter of the non-consumable copper or copper alloy alloy 12 of the round bar or round pipe is about 4 mm to 20 mm, and preferably 5 to 12 mm. In the case of a round pipe, it is possible to flow cooling water for water cooling. The welding conditions of FIGS. 27 (b) to 27 (e) are as described in the embodiment in the invention according to claim 1, 2, 3, or 4.

An embodiment of the invention according to claim 6 will be described.
In FIG. 28 (a), at least the front side groove of the beam flange 4 is filled or set with metal powder, a cut wire, or a mixture 47 thereof, and from the back side without the groove, In the invention according to the present invention, horizontal fillet welding or vertical fillet welding is performed, and in the invention according to claim 4, a lateral orientation or an upward orientation welding is performed, and a bead is formed on the front side where the groove exists. Indicates. The metal powder is pure iron or alloy steel of about 10 to 400 mesh, and the cut wire is not pure iron or alloy steel. A chopped one having a diameter of about 0.5 to 2.4 mm is desirable.
28 (b), a covered arc welding rod 48 is installed in at least the front side groove of the beam flange 4, and the horizontal fillet in the inventions according to claims 1, 2, and 3 from the back side without the groove. Welding or vertical fillet welding is performed, and the invention according to claim 4 shows a method of forming a bead on the front side where a groove is present by performing sideways welding or upward welding. The coated arc welding rod 48 is preferably a low hydrogen welding rod, an illuminite welding rod, a high titanium oxide welding rod, or an iron powder welding rod having a diameter of 3.2 to 6 mm.

It is an example of the three-dimensional figure of the conventional architectural steel-column-beam joint part . It is sectional drawing of the steel pipe / diaphragm / beam flange joint part of the conventional building steel column-beam joint part . 1 is an example of a cross-sectional view in which build-up welding is performed by applying a water-cooled or non-water-cooled copper metal plate to the end of a member . It is an example of sectional drawing which applied the thin steel plate to the member edge part, and carried out overlay welding . FIG . 6 is a cross-sectional view of a state in which build-up welding is performed on the end portion of the member 4 and both the end portion of the member and the build-up weld portion 14 are grooved . It is sectional drawing of the state which carried out the overlay welding 14 and groove processing to the edge part of the member 4, and applied to the other member 16 of a joint, and implemented joint welding . It is a figure which shows column body manufacture (construction method) which manufactures only a column ahead and attaches a beam bracket . It is an external view of the state which addressed the H-shaped steel beam flange stood at right angles and the end part with the shape of a stiffener of the stiffener with respect to the H-shaped steel column placed horizontally . It is the external view of the state which addressed the H-shaped steel column flange and the end part with the shape-shaped groove processing of a stiffener standing at right angle with respect to the H-shaped steel beam put horizontally . It is the front view of the state where the end part with the shape of grooved stiffener of the stiffener standing upright is addressed to the H-shaped steel placed horizontally , (i) when installed on the H-shaped steel base metal (B) is a figure which shows the case where H-section steel is installed on the welding junction . It is an external view of the state where the end part with the shape of the groove-shaped groove of the H-shaped steel beam flange standing upright is addressed to the diaphragm welded to the H-shaped steel column placed horizontally . It is an external view of the state where the end part with the shape of the groove-shaped groove of the H-shaped steel beam flange standing upright is addressed to the diaphragm welded to the H-shaped steel column placed horizontally . It is the figure which shows the surface wave bead welding procedure of the building steel frame , (b) is with the H-shaped steel beam flange or the stiffener bevel processing which stands at right angle to the H-shaped steel or steel pipe column placed horizontally (B) is the situation where horizontal fillet welding or vertical fillet welding is performed from the back side without a groove to form a surface wave bead in the groove, (c) is the front It is a figure which shows the condition where the welding after the 2nd layer is performed on the first layer welding which formed the wave bead, and joint welding is implemented. It is a figure which shows the surface wave bead welding procedure in case a groove gap is large with an architectural steel frame . It is an external view in the state where the end portion with the shape of the groove-shaped groove of the H-shaped steel beam flange standing at a right angle is directed to the joint portion of the square steel pipe column manufactured by the conventional method and placed horizontally . It is an external view of a state in which the end portion of the H-shaped steel beam flange with a beveled groove is vertically applied to the joint portion of a square steel pipe column that is manufactured horizontally by the brimless method. . It is an external view in the state where the end portion with the shape of the groove of the H-shaped steel beam flange is addressed horizontally with respect to the joint portion of the square steel pipe column manufactured by the ribless method and placed horizontally . It is an external view in the state where the end portion with the shape of the groove-shaped groove of the H-shaped steel beam flange standing at a right angle is directed to the joint portion of the square steel pipe column manufactured by the integrated construction method and placed horizontally . It is an external view of a state in which the end portion of the H-shaped steel beam flange with a beveled groove is placed at a right angle with respect to a joint portion of a square steel pipe column manufactured by the slot method and placed horizontally . It is an external view of the state where the end part with the shape of the groove-shaped groove of the H-shaped steel beam flange standing at a right angle is directed to the joint part of the round steel pipe column manufactured by the conventional method and placed horizontally . An external view of a round steel pipe column made with a flangeless construction method, with the end of the H-shaped steel beam flange with a beveled groove facing the end. is there. In the situation where surface wave welding is applied to the end of a square steel pipe column manufactured by the brimless method and placed horizontally, with the end of the H-shaped steel beam flange with a beveled groove applied It is sectional drawing . Cross section of the situation where surface wave welding is applied to the end of a square steel pipe column manufactured by the slot method and placed horizontally on the end of the H-shaped steel beam flange with a beveled groove FIG . Horizontal fillet welding or vertical fillet welding is performed from the back side of the beam flange with the groove upright, and a bead is formed on the front side of the beam flange with the groove, and the fillet weld is extended to extend the mother It is an external view of the method of implementing the overlay welding 45 on a material . H-shaped steel beam flange or steel pipe column installed vertically is directed to H-shaped steel beam, and overlay welding is performed on the lower base metal of H-shaped steel beam flange in a lateral orientation or an upward orientation. FIG. 2 is a cross-sectional view in which a beam and a beam flange end are welded by surface wave welding, and a column and a beam are joined by butt welding . H-shaped steel beam is applied to a steel pipe column manufactured by the slot method or the ribless method and installed vertically, and overlay welding is performed on the lower base material of the H-shaped steel beam flange in a lateral orientation or an upward orientation, FIG. 5 is a cross-sectional view in which build-up welding and beam flange end portions are surface wave welded, and columns and beams are butt-welded and joined . Apply a water-cooled or non-water-cooled copper or copper alloy gold or consumable material made of glass fiber, flux, ceramics, coated arc welding rod or a mixture of these in the groove on the front side of the beam flange. It is explanatory drawing of the method of implementing surface wave welding from the back side which does not exist . It is explanatory drawing of the method which fills or installs metal powder, a cut wire, a covering welding rod, or these mixtures in the beam flange front side groove | channel, and performs surface wave welding from the back side without a groove | channel .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Diaphragm 1A of an architectural steel beam-column joint H-shaped steel flange 1T of an architectural steel beam-column joint 1 A member composed of 1 and 2 is called a dice.
2A Integrated dice. A member made up of the diaphragm 1 and the short column of the joint is a solid dice.
3 H-shaped steel beam 3A H-shaped steel beam 3B to be joined to the column from different directions H-shaped steel beam bracket 3C H-shaped steel column 4 H-shaped steel beam flange 4A H-shaped steel beam flange end cross section 5 Column by steel pipe or Shaft 5S Square steel pipe short pipe 5W Groove welded or slot welded part 6 for attaching a steel pipe column and H-shaped steel web or stiffener 6 Welding between steel pipe and diaphragm 7 Welding between beam flange and diaphragm 8 Temporary or assembly welding 9 H type Steel beam web 10 Back metal 11 Scallop 12 Non-consumable metal (copper, copper alloy, etc.), and its cross-sectional shape is a quadrilateral, a round bar, and a round pipe.
12A Consumable material 13 made of glass fiber, flux, ceramics, coated arc welding rod or a mixture thereof H-shaped steel flange 14 Overlay welding 15 applied on the back or surface of the member Overlay weld 14 and the base metal were included Groove surface 16 Mating member 17 Joint weld 18 Plate thickness or thickness 19 of member 4 Effective throat thickness 20 of welded portions of members 16 and 4 Overlay welding 21 on the side, top or back of the beam flange 21 Beam stress concentration portion 22 With steel pipe Groove weld or slot weld 23 for attaching the column to the inner diaphragm or H-shaped steel flange 23 Welding of the steel pipe and the H-shaped steel beam web Through hole 24A opened in the center of the H-shaped steel flange or inner diaphragm Through-hole 25 opened in corner of diaphragm 25 H-shaped steel web 25A of stiffener 26 Fillet melt that joins flange and H-shaped steel web in column Or butt welding 31 First layer route welding 32 Solid dice 33 used for column beam joints Tack welding 34 Column body 35 Welding member 36 Back wave welding 37 Welding torch 38 Shaped groove 39 H-shaped steel flanged shape groove 40 Stiffener groove 41 Surface wave bead 42 Placement bead (Overlay welding bead)
43 Fillet weld on the back of the groove of the H-shaped steel flange 44 Butt weld on the groove side of the H-shaped steel flange 45 Extended build-up welding to the base metal 46 Build-up welding on the side of the H-shaped steel flange 47 Metal powder, cut wire, or Mixture of these 48 Coated arc welding rod

Claims (6)

In architectural steel structures,
The H-shaped steel column placed horizontally or the member of its welded part is attached to the end of the H-shaped steel beam flange or stiffener with a beveled finish, or
For the H-shaped steel beam or its welded part placed horizontally, address the end of the H-shaped steel column flange or stiffener with a beveled finish at a right angle,
Welding beads by the fillet welding on the front side with the groove at the end by performing horizontal fillet welding or vertical fillet welding from the back side without the groove at the end to the member and the end To form
Thereafter, a method of performing butt welding on the beam end groove side on the front side . In architectural steel structures,
With a square steel pipe or a round steel pipe, make a one-column column before attaching the beam bracket,
Hook the flange end with the groove shape of the H-shaped steel bracket beam vertically or horizontally to the joint part of the column placed horizontally,
Perform horizontal fillet welding or vertical fillet welding from the back side without the groove of the beam flange to the joint and the end, and form a bead on the front side with the groove of the beam flange,
After that, by carrying out the front side welding with the beam end groove,
A method for manufacturing a beam-to-column connection, wherein a beam bracket is attached after the column is manufactured . In the invention according to claim 1 or 2,
When performing horizontal fillet welding or vertical fillet welding from the back side of the beam flange without a groove and forming a bead on the front side of the beam flange with a groove, the bead is formed and the fillet welding is performed. Extend and carry out overlay welding on the base material of the member or the column,
After that, while performing butt welding on the front side with the beam end groove, extending the butt welding and performing overlay welding on the base material of the member or the column body,
Furthermore, by performing overlay welding on the side of the beam end, increasing the beam width at the beam end,
A method for manufacturing a beam-column joint, wherein a beam bracket is attached after a column is manufactured . In the steel beam structure beam-column joint,
In the state where the end of the beam flange that has been subjected to the re-shaped groove processing is horizontally directed to the H-shaped steel column or steel pipe column member installed vertically,
On the back side without the groove of the beam flange, overlay welding is carried out in a lateral orientation on the base material of the column below the beam end,
From the back side without the groove of the beam flange, perform welding in the horizontal or upward direction between the build-up welding and the end of the beam flange, and form a bead on the front side where the groove of the beam flange exists,
Thereafter, the beam-to-column connection is performed by performing welding on the beam end groove side on the front side . In the invention according to claim 1, 2, 3, or 4,
A water-cooled or non-water-cooled copper-made or copper-alloy gold in the beam-shaped groove on the front side of the beam flange
Or, apply a consumable material made of glass fiber, flux, ceramics, coated arc welding rod or a mixture of these,
A method of forming a bead on the front side where a groove is present by performing horizontal fillet welding, vertical fillet welding, sideways welding or upward welding from the back side without the groove . In the invention according to claim 1, 2, 3, or 4,
At least fill or install metal powder, a cut wire, a coated welding rod, or a mixture thereof in the re-shaped groove on the front side of the beam flange,
A method of forming a bead on the front side where a groove is present by performing horizontal fillet welding, vertical fillet welding, sideways welding or upward welding from the back side without the groove .

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