GB2390125A - A welded joint construction for a steel pipe column - Google Patents
A welded joint construction for a steel pipe column Download PDFInfo
- Publication number
- GB2390125A GB2390125A GB0300937A GB0300937A GB2390125A GB 2390125 A GB2390125 A GB 2390125A GB 0300937 A GB0300937 A GB 0300937A GB 0300937 A GB0300937 A GB 0300937A GB 2390125 A GB2390125 A GB 2390125A
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- sized
- short
- steel pipes
- steel pipe
- long
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2451—Connections between closed section profiles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2454—Connections between open and closed section profiles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/246—Post to post connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A joint construction for a column of steel pipes comprises a long steel pipe 1 of a first thickness t and a second steel pipe 2 of a second thickness T which is greater than that of the first. The steel pipes 1,2 are formed by either cold or hot forming to have the same outer shape and diameter, and they are welded together from the outside in an arrangement in which an end surface of the long pipe 1 is opposed to an end surface of the short pipe 2 which has no bevelled portion. An inner collar 3 can be included in the joint construction and may be positioned inside the long pipe 1 so that it can be abutted against the end surface of the short pipe 2. The pipes 1,2 may either be quadrangular or cylindrical.
Description
JOINT CONSTRUCTION OF COLUMN MEMBER STEEL PIPES
FIELD OF THE INVENTION
The present invention relates to a joint construction of column member steel pipes used as columns for steel-framed structures, for example.
BACKGROUND OF THE INVENTION
AS for a column member steel pipe used as a column, there has heretofore been provided an arrangement, as found, for example, in Japanese Patent Laid-Open No. 2001-303661 in which a thick-walled column obtained by hot forming is employed as a column for a panel zone.
That is, for example, a long-sized quadrangular steel pipe having a predetermined wall thickness is produced by cold forming, while a shortsized quadrangular steep pipe having a greater wall thickness than that ofthelong-sized quadrangular steel pile and a sufficient length to form a beam connector is produced by heatingina furnace,followedby trot forming. And, the short-sized quadrangular steel pipe is internally formed with a bevel. The long-sized and short-sized quadrangular steel pipes thus obtained are joined as by arc welding, thereby providing a quadrangular steel pipe column.
As another prior art example,along-sized quadrangular steer
pipe of predetermined wallthicknessis produced by cola forming, while a short-sized quadrangular steel pipe having a greater wall thickness than that of the long-sized quadrangular steel pile and a sufficient length to form a beam member connector is produced by cold forming. The long-sized and short-sized quadrangular steep pipes thus obtained are joined as by arc
J welding, thereby providing a quadrangular steel pipe column.
According to the thus-obtained thick-walled quadrangular steel pipe column, for example, as compared with a through diaphragm system or inner diaphragm system, the number of man-hours for assembly can be reduced and the weld length can be reduced; thus, the whole can be simplified and economical, with weld strains hardly occurring. Further, the beam member connector is capable of securing a sufficient strength because of the predetermined increased wall thickness of the short-
sized quadrangular steel pipe and allows the weld joining of beam members without any trouble. Furthermore, the quadrangular steer pipe column is obtained in the form of a pipe joint and can be finished into the state of having no internal ribs or patches, and an arrangement adapted to have concrete or thelike filled therein can tee easily employed;othervarious merits are also expectable.
However, according to the quadrangular steel pipe column employing the thick-walled short-sized quadrangular steer pipe described above, forming a welding bevel in the interior of the thick-walled short-sized quadrangular steel pipe takes much time in the manufacture thereof, increasing the cost.
Furthermore, the inner side (patch side) welding is performed with the patch applied over a region extending from the bevel in the thick-walled short-sized quadrangular steel pipe to the inner surface of the longsized quadrangular steel pipe of predetermined thickness, such welding resulting in too much amount of welding, hampering fast welding, sometimes requiring a deformed (specially processed) patch.
SUMMARY OF THE INVENTION
Accordingly, an object of the invention is to provide a joint construction of column member steel pipes that is capable of retaining various merits of a type employing thick-walled short-sized steel pipes, in which a welding bevel can be formed in a shortened production time at a low cost and a joining operation by welding can be more smoothly effected.
To achieve the object described above, a joint construction of column member steel pipes according to a first aspect of the invention comprises a long-sized steel pipe of a predetermined wall thickness and a shortsized steel pipe of a greater wall thickness than that of the Long-sized steer pipe, wherein these Long-sized end short-sized steer pipes are formed by trot forming so that they are the same in outer peripheral shape, and these two steel pipes are joined by welding from outside in a state that an end surface of the long-sized steel pipe is opposed to en end surface of the short-sized steelpipe that is not beveled.
In the arrangement according to the first aspect described above, the long-sized and short-sized steel pipes are linearly positioned with their outer peripheral shapes conforming to each other, and with their end surfaces opposed to each other, and then joined to each other at their opposed end surfaces by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing thick-walled short-sized steel pipes. In this case, since the outer peripheral shapes are the same, the joining operation by welding can be effected more smoothly, efficiently and suitably all the time, with no step portion (linear misalignment) formed, and transmission of stress can be effected more suitably. Further, since the thick-walled short-sized steel pipe is not beveled, it can be
formed in a reduced production time and at a lower cost.
In a first embodiment according to the first aspect of the invention, a joint construction of column member steel pipes is characterized in that the long-sized and short-sized steel pipes are quadrangular steel pipes, and these long-sized and short-sized quadrangular steel pipes are formed by hot forming to have a same external width and a same outer curved surface at each corner portion.
In this first embodiment according to the first aspect of the invention, the long-sized and short-sized quadrangular steel pipes arelinearly positioned with their outer peripheral shapes conforming to each other, and with their end surfaces opposed to each other, and then joined at their opposed end surfaces by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing thick-walled short-sized quadrangular steer pipes. Inthiscase,sincetheopposedouter curved surfaces are of the same shape end thereisno step portion (linear misalignment) formed, the joining operation by welding between the corner portions can be effected more smoothly, efficiently, and suitably all the time.
In a second embodiment according to the first aspect of the invention, a joint construction of column member steel pipes is characterized in that the long-sized and short-sized steel pipes are round steel pipes, and these long-sized and short-sized round steel pipes are formed by hot forming so that they are the same in outer diameter.
In this second embodiment according to the first aspect of the invention, thelong-sized end short-sized round steer pipes are concentrically and linearly positioned, and their opposed
end surfaces are joined by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing the thick-walled short-sized round steel pipes.
To achieve the object described above, a joint construction of column member steel pipes according to a second aspect of the invention comprises a long-sized steep pipe of a predetermined wall thickness and a short-sized steel pipe of a greater wall thickness then that ofthelongsizedsteelpipe, wherein the long-sized steel pipe is cold-formed, while the short-sized steel pipe is hot-formed to have a same outer.
peripheral shape as that of the long-sized steel pipe, and an end surface of the long-sized steel pipe is opposed to an end surface of the shortsized steel pipe that is not beveled, and in this state the two steel pipes are joined by welding from outside. In the arrangement according to the second aspect of the invention, the long-sized steel pipe which is cold-formed and the short-sized steel pipe which is hot-formed are linearly positioned with their outer peripheral shapes conforming to each other, with their end surfaces opposed to each other, and subsequently the opposed end surfaces are joined by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing the thick-walled short- sized steel pipe. In this case, since the outer peripheral shapes are the same, the weld-joining operation can be effected more smoothly, efficiently and suitably all the time, with no step portion (linear misalignment) formed, and transmission of stress can be effected more suitably. Since the thick-walled short-sized
steel pipe is not beveled, it can be formed in a reduced production time atalower cost. And thelong-sizedsteelpipes can be formed by cold forming at a lower cost.
In a first embodiment according to the second aspect of the invention, a joint construction of column member steel pipes is characterized in that the long-sized and short-sized steel pipes are quadrangular steel pipes, and the long-sized quadrangular steel pipe is cold-formed, while the short-sized quadrangular steel pipe is formed by hot forming to have a same external width and a same outer curved surface at each corner portion as those of the long-sized quadrangular steel pipe.
In the first embodiment according to the second aspect of the invention, the long-sized quadrangular steel pipe cold-
formed and the short-sized quadrangular steel pipe hot-formed are linearly positioned with their outer peripheral shapes conforming to each other and with their end surfaces opposed to each other, and then joined at their opposed end surfaces by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing the thick-walled short-sized quadrangular steel pipe. In this case, since the opposed outer curved surfaces are the same and no step portion (linear misalignment) is formed, the joining operation by welding between the corner portions can be effected more smoothly, efficiently and suitably all the time.
In a second embodiment according to the second aspect of the invention, a joint construction of column member steel pipes is characterized in that the long-sized and short-sized steel pipes are round steel pipes, and thelong-sized round steelpipe is cold-formed, while the short-sized round steelpipeis formed
by hot forming to have a same outer diameter as the long-sized round steel pipe.
In this second embodiment according to the second aspect of the invention, the long-sized round steel pipe that is cold-formed and the short-sized round steel pipe that is hot-formedareconcentricallyandlinearlypositioned, andthen areoined et their opposed end surfaces by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing the thick-walled short-sized round steel pipe.
To achieve the object described above, a joint construction of column member steel pipes according to a third aspect of the invention comprises a long-sized steep pipe of a predetermined wall thickness and a shortsized steel pipe of a greater wall thickness than that of the long-sized steel pipe, wherein these long-sized and short-sized steel pipes are coldformed to have a same outer peripheral shape, and an end surface of the long-sized steel pipe is opposed to an end surface of the short-sized steel pipe that is not beveled, and in this state the two steel pipes are joined by welding from outside.
In the arrangement according to the third aspect of the invention described above, the cold-formed long-sized and short-sized steel pipes are linearly positioned with their outer peripheral shapes conforming to each other and with their end surfaces opposed to each other, and then joined at their opposed end surfaces by welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing the thick-walled shortsized steel pipe. In this case, since the outer peripheralshapes are the same and no step portion (linear
misalignment) is formed, the weld joining operation can be effected more smoothly, efficiently and suitably all the time, and transmission of stress can be effected more suitably. And since the thick-walled shortsized steel pipe is not beveled, it can be formed in a reduced production time at a lower cost.
Further, both long-sized and short-sized steel pipes can be formed by cold forming at a lower cost.
In a first embodiment according to the third aspect of the invention, a joint construction of column member steel pipes is characterized in that the long-sized and short-sized steel pipes are quadrangular steel pipes, and these long-sized and short-sized quadrangular steel pipes are coldformed to have a same external width and a same outer curved surface at each corner portion.
In this first embodiment according to the third aspect of the invention, the cold-formed long-sized and short-sized quadrangular steel pipes are linearly positioned with their outer peripheral shapes conforming to each other, with their end surfaces opposed to each other which are then joined to each other byweldingirom outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing thick-walled short-sized quadrangular steelpipes. Inthiscasesincetheopposedouter curved surfaces are the same end there is no step portion(linear misalignment) formed, the joining operation by welding between the corner portions can be effected more smoothly, efficiently and suitably all the time.
In a second embodiment according to the third aspect of the invention, a joint construction of column member steel pipes is characterized in that the long-sized and short-sized steel
pipes are round steel pipes, and these long-sized and short-sized round steel pipes are cold-formed to have a same outer diameter.
In this second embodiment according to the third aspect of theinvention, thecold-formedlong-sized end short-sized round steel pipes are concentrically and linearly positioned end then joined et their opposed end eurfaceby welding from outside over the entire periphery, thereby constituting a column member steel pipe retaining the various merits of the type employing the thick-walled short-sized round steel pipe.
In preferred embodiments according to the first through third aspects of the invention, the joint construction of column member steel pipes are characterized in that the short-sized steel pipe has a length forming a panel zone.
In these preferred embodiments according to the first through third aspects of the invention, the long-sized and short-sized steel pipes are linearly positioned with their outer peripheral shapes conforming to each other, and in this state the opposed end surfaces are joined by welding from outside over the entire periphery, thereby constituting a column member steer pipe with the short-sized steel pipe used as a panel zone. Thus, the various merits of the type employing the thick-walled shortsized steel pipe can be retained.
In other preferred embodiments according to the first through third aspects of the invention, a joint construction of column member steel pipes is characterized in that a patch positioned inside the long-sized steel pipe is abutted against an end surface of the short-sized steel pipe and in this state the two steel pipes are joined by welding from outside.
In these other preferred embodiments according to the first
through third aspects of the invention, the weld joining operation can be suitably effected using the patch, and by abutting the patch against a flat end surface of the short-
sized steel pipe, welding can be rapidly effected in a reduced weld amount. Further, the patch does not require special processing. BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a partly cutaway perspective view of a quadrangular steel pipe column in a joins construction of column member steer pipes before subjected to weld joining, according to a first embodiment of the invention; FIG. 2 is a sectional front elevation of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 3 is a partly cutaway perspective view of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 4 is a sectional front elevation of flat plate portions of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 5 is a sectional front elevation of a corner portion of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 6 is an enlarged sectional front elevation of an essential portion of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 7 is a cross-sectional plan of the quadrangular steel pipe column in the joint construction of column member steel pipes;
FIG. 8 is a diagram explaining hot forming or the like of a quadrangular steelpipe for the quadrangular steelpipe column in the joint construction of column member steel pipes; FIG. 9 is a partly cutaway perspective view of a round steel pipe column in a joins construction of column member steelpipes before subjected to weld joining, according to a second embodiment of the invention; FIG. 10 is a sectional front elevation of the round steel pipe column in the joint construction of column member steel pipes; FIG. 11 is an enlarged sectional front elevation of an essential portion of the round steel pipe column in the joint construction of column member steel pipes; FIG. 12 is a cross-sectional plan of the round steel pipe column in the joint construction of column member steel pipes; FIG.13 is a pertly cutaway perspective view of a quadrangular steel pipe column in a joins construction of column member steer pipes before subjected to weld joining, according to a third embodiment of the invention; FIG. 14 is a sectional front elevation of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 15 is an enlarged sectional front elevation of an essential portion of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 16 is a cross-sectional plan of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 17 is a diagram explaining forming or the like of a quadrangular steel pipe for the quadrangular steel pipe column
in the joint construction of column member steel pipes; FIG. 18 is a partly cutaway perspective view of a round steel pipe column in a joins construction of column member steelpipes before subjected to weld joining, according to a fourth embodiment of the invention; FIG. 19 is an enlarged sectional front elevation of an essential portion of the round steel pipe column in the joint construction of column member steel pipes; FIG. 20 is a cross-sectional plan of the round steel pipe column in the joint construction of column member steel pipes; FIG.21 lea pertly cutaway perspective view of a quadrangular steelpipe column in a joint construction of column member steer pipes before subjected to weld joining, according to a fifth embodiment of the invention; FIG. 22 is a sectional front elevation of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 23 is an enlarged sectional front elevation of an essential portion of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 24 is a cross-sectional plan of the quadrangular steel pipe column in the joint construction of column member steel pipes; FIG. 25 is a diagram explaining cold forming or the like of a quadrangular steelpipe for the quadrangular steer pipe column in the joint construction of column member steel pipes; FIG. 26 is a partly cutaway perspective view of a round steel pipe columnina joins construction of column member steelpipes before subjected to weld joining, according to a sixth embodiment of the invention;
FIG. 27 is an enlarged sectional front elevation of an essential portion of the round steel pipe column in the joint construction of column member steel pipes; and FIG. 28 is a cross-sectional plan of the round steel pipe column in the joint construction of column member steel pipes.
PREFERRED EMBODIMENTS
A first embodiment oftheinvention, employing a quadrangular steel pipe, will now be described with reference to FIGS. 1 through 8.
As shown in FIG. 1, the arrangement comprises long-sized quadrangular steel pipes (an example of long-sized steel pipe) 1 having a predetermined wall thickness t, and a short-sized quadrangular steel pipe (an example of short-sized steel pipe) 2 of length (height) L having a wall thickness T greater than the wallthickness t of thelong sized quadrangular steelpipes 1 and forming a panel zone. The predetermined wall thickness t is determined as by the external width W of a quadrangular steel pipe column employed according to the scale of a steel structure. For example, when the external width W is 500 mm, the wall thickness t is 25 mm. Further, the wall thickness t of the long-sized quadrangular steel pipe 1 and the wall thickness T of the short-sized quadrangular steel pipe 2 are so related to each other that 2t -. T. for example.
And the long-sized and short-sized quadrangular steel pipes 1 and 2 are hot-formed so that they are the same in the outer peripheral shape, i.e., the external width W and the radius of curvature R (for example, a radius of curvature of 0.5 T - 1.5 T) of the outer curved surfaces la and 2a at the corner portions 1A and 2A.
In this case, the hot forming is performed in that as shown, for example, in FIG. 8, a half-formed long-sized quadrangular steel pipe 11 and a halfformed short-sized quadrangular steel pipe 12 of length L forming a panel zone are heated by a heating means (a furnace or the like) 15 and formed by forming means (forming roll devices or the like) 16 and 17. Such hot forming for the outer peripheral shape provides a long-sized quadrangular steel pipe 1 and short-sized quadrangular steel pipe 2 that are the same in the external width W and radius of curvature R. Of the thusproducedlong-sized and short-sized quadrangular steel pipes 1 and 2, the long-sized quadrangular steel pipe 1 is cut at the outer portion of end thereof by a processing means (cutting device or the like) 18; thus the end is formed with a bevel (end surface) lb of predetermined angle (35 45 ).
And, a quadrangular ring-like patch 3 is fitted in the end of the longsized quadrangular steel pipe 1, and then, as shown in FIG. 6, fixed thereto by a weld 4.
The long-sized and short-sized quadrangular steel pipes 1 and 2 formed in the manner described above are linearly positioned with their outer peripheral shapes conforming to each other, and then the outer end surface 3b of the patch 3 positioned inside the long-sized quadrangular steel pipe 1 is abutted against the flat end surface 2b of the short- sized quadrangular steel pipe 2. That is, the bevel (end surface) lb of the long-sized quadrangular steel pipe 1 is opposed to the flat end surface (end surface) 2b of the short-sized quadrangular steel pipe 2, which is not beveled.
And as shown in FIGS. 2 through 6, the bevel lb and the flat end surface 2b opposed thereto are tack-welded from outside,
and then joined by a weld (arc weld or the like) 5 along the entire periphery from outside, whereby the long-sized and short-sized quadrangular steel pipes 1 and 2 are joined by the welds from outside, thereby providing a quadrangular steelpipe column (an example of column member steel pipe) 6 using the short-sized quadrangular steel pipe 2 as a panel zone.
A predetermined number of quadrangular steel pipe columns 6 constructed in the manner described above are conveyed to a building site or the like, and beam flanges or beam members 7 are joined by welds 8 to the outer surface of the short-sized quadrangular steel pipe 2 of length L forming a panel zone. In addition, the quadrangular steel pipe columns 6, as shown in phantom lines in FIG. 2, are stacked and adjoining ones are joined by welds 5, whereby they are constructed to have a predetermined length (height).
A second embodiment of the invention, employing a round steer pipe, will now be described with reference to FIGS. 9 through 12. That is, as shown in FIG. 9, the arrangement comprises long-sized round steel pipes (an example of long-sized steel pipe) 21 having a predetermined wall thickness t, and a short-sized round steel pipe (an example of short- sized steel pipe) 22 of length (height) L having a wall thickness T greater than the wall thickness t of the long-sized round steel pipes 21 and forming a panel zone. These long-sized and short-sized round steel pipes 21 and 22 are hot-formed so that they are the same in the outer diameter D. And, each long-sized round steel pipe 21 is cut at the outer portion of its end; thus, the end is formed with a bevel 21b of predetermined angle (35 - 45 ).
Further, a ring-like patch 23 is fitted in the end of the
long-sized round steel pipe 21, and then fixed thereto by a weld 24. In addition, the end of the short-sized round steel pipe 22 is not beveled but is left as a flat end surface 22b.
The long-sized and short-sized round steel pipes 21 and 22 formed in the manner described above are concentrically and linearly positioned, and then the outer end surface 23b of the patch 23 positioned inside the longsized round steel pipe 21 is abutted against the flat end surface 22b of the short-sized round steel pipe 22. That is, the bevel (end surface) 2lb of the long-sized round steel pipe 21 is opposed to the flat end surface 22b of the short-sized round steel pipe 22, which is not beveled.
And as shown in FIGS. 10 through 12, the bevel 2lb and the flat end surface 22b opposed thereto are tack-welded from outside, and then joined by a weld (arc weld or the like) 25 along the entire periphery from outside,wherebythelong-sized and short-sized round steel pipes 21 and 22 are joined by the weld 25 from outside, thus providing a round steel pipe column (an example of column member steel pipe) 26 using the short-sized round steel pipe 22 as a panel zone. In this case, the joining by the weld 25 can be suitably effected by utilizing the patch 23.
A third embodiment oftheinvention, employing a quadrangular steel pipe, will now be described with reference to FIGS. 13 through 17.
AS shown in FIG. 13, the arrangement comprises long-sized quadrangular steel pipes (an example of long-sized steel pipe) 31 having a predetermined wall thickness t, and a short-sized quadrangular steel pipe (an example of short-sized steel pipe) 32 of length (height) L having a wall thickness T greater than
the wall thickness t of the long-sized quadrangular steelpipes 31 and forming a panel zone. The predetermined wall thickness t is determined as by the external width W of a quadrangular steel pipe column employed according to the scale of a steel structure. For example, when the external width W is 500 mm, the wall thickness t is 25 mm. Further, the wall thickness t of the long-sized quadrangular steel pipe 31 and the wall thickness T of the short-sized quadrangular steel pipe 32 are so related to each other that 2t -. T. for example.
And,thelong-sizedquadrangularsteelpipe31 is cold-formed, while the shortsized quadrangular steer pipe32 is hot-formed; thus, the long-sized and short-sized quadrangular steel pipes 31 and 32 are formed by the shaping effected by the hot forming of the short-sized quadrangular steel pipe 32 so that they are the same in the outer peripheral shape, i.e.,the externalwidth W and the radius of curvature R (for example, a radius of curvature of 0.5 T - 1.5 T) of the outer curved surfaces 31a and 32a at the corner portions 31A and 32A.
At this point, the cold-formedlong-sized quadrangular steer pipes 31, as shown, for example, in FIG. 17, are each cut at the outer portion of the end thereof by a processing means (cutting device or the like) 47; thus, long-sized quadrangular steel pipes 31 are obtained whose end is formedwith a bevel (endsurface)31bofpredeterminedangle(35 -45). Further, the hot forming of the short-sized quadrangular steel pipe 32 is effected in that a half-formed short-sized quadrangular steel pipe 41 of length L forming a panel zone is heated by a heating means (a furnace or the like) 45 and is formed by a forming means (a forming roll device or the like) 46. Such hot forming for the outer peripheral shape provides a short-sized
quadrangular steel pipe 32 so formed that it is the same in the outer external width W and the radius of curvature R as the long-sized quadrangular steel pipe 31.
Of the long-sized and short-sized quadrangular steel pipes 31 and 32 produced in this manner, the long-sized quadrangular steel pipe 31 has a quadrangular ring-like patch 33 fitted in the end thereof, the patch being fixed thereto by a weld 34, as shown in FIG. 15. In addition, the end of the short-sized quadrangular steel pipe 32 is not beveled for welding but is left as a flat end surface (end surface) 32b.
The long-sized and short-sized quadrangular steel pipes 31 and 32 formed in the manner described above are linearly positioned with their outer peripheral shapes conforming to each other, and then the outer end surface 33b of the patch 33 positioned inside the long-sized quadrangular steel pipe 31 is abutted against the flat end surface 32b of the short- sized quadrangular steel pipe 32.
And as shown in FIGS. 14 and 15, in the same manner as in the first embodiment described above, joining by a weld (arc weld or the like) 35 along the entire periphery from outside provides a quadrangular steel pipe column (an example of column member steel pipe) 36 using the short- sized quadrangular steel pipe 32 as a panel zone. Further, beam flanges or beam members 37 are joined by welds38to the outer surface of the short- sized quadrangular steel pipe 32 of length L forming a panel zone.
A fourth embodiment of the invention, employing a round steer pipe, will now be described with reference to FIGS. 18 through 20. That is, as shown in FIG. 18, the arrangement comprises long-sized round steel pipes (an example of long-sized steel
pipe) 51 having a predetermined wall thickness t, and a short-sized round steel pipe (an example of short-sized steel pipe) 52 of length (height) L having a wall thickness T greater than the wall thickness t of the longsized round steel pipes 51 and forming a panel zone.
And,thelong-sized round steel pipe51 iscold-formed,while the short-sized round steel pipe 52 is hot-formed; thus, the long-sized end short-sized round steelpipe51and52 are formed by the shaping effected by the hot forming of the short-sized round steel pipe 52 so that they are the same in the outer peripheral shape, i.e., the outer diameter D. Further, the long-sized round steel pipe 51 is cut at the outer portion of the end thereof; thus, the end is formed with a bevel 51b of predetermined angle (35 - 45 ). Further, a ring-like patch 53 is fitted in the end of the long-sized round steel pipe 51 and then fixed thereto by a weld 54. In addition, the end of the short-sized round steel pipe 52 is not beveled but is left as a flat end surface 52b.
The long-sized and short-sized round steel pipes 51 and 52 formed in the manner described above are concentrically and linearly positioned, and then the outer end surface 53b of the patch 53 positioned inside the longsized round steel pipe 51 is abutted against the flat end surface 52b of the short-sized round steel pipe 52. That is, the bevel (end surface) 51b of the long-sized round steel pipe 51 is opposed to the flat end surface 52b of the short-sized round steel pipe 52, which is not beveled.
And as shown in FIGS. 19 and 20, in the same manner as in the second embodiment described above, joining by a weld (arc weld or the like) 55 along the entire periphery from outside
provides a round steel pipe column (an example of column member steel pipe) 56 using the short-sized round steel pipe 52 as a panel zone. At this time, the joining by the weld 55 can be suitably effected by using the patch 53.
A fifth embodiment oftheinvention, employing a quadrangular steel pipe, will now be described with reference to FIGS. 21 through 25.
As shown in FIG. 21, the arrangement comprises long-sized quadrangular steel pipes (an example of long-sized steel pipe) 61 having a predetermined wall thickness t, and a short-sized quadrangular steel pipe (an example of short-sized steel pipe) 62 of length (height) L having a wall thickness T greater than the wallthickness t of the long-sized quadrangular steer pipes 61 and forming a panel zone. The predetermined wall thickness t is determined as by the external width W of a quadrangular steel pipe column employed according to the scale of a steel structure. For example, when the external width W is 500 mm, the wall thickness t is 25 mm. Further, the wall thickness t of the long-sized quadrangular steel pipe 61 and the wall thickness T of the short-sized quadrangular steel pipe 62 are so related to each other that 2t - T. for example.
And, thelong-sized end short-sized quadrangular steelpipes 61 and 62 are cold-formed so that they are the same in the outer peripheral shape, i.e., the external width W and the radius of curvature R (for example, a radius of curvature of 0.5 T - 1.5 T)of the outer curved surfaces61aand62aat the comer portions 61A and 62A.
In this case, the cold forming of the long-sized and short-sized quadrangular steel pipes 61 and 62 is performed, for example, in the manner shown in FIG. 25. That is, for the
cold forming ofthelong-sized quadrangular steelpipe61, first, a flat plate blank, i.e., a thin steel plate 71 of predetermined wall thickness t, length and width, corresponding to the long-sized quadrangular steel pipe 61 is prepared. This thin steel plate 71 is conveyed to a beveling machine 72, where it is beveled. Subsequently, the thin steel plate 71 is conveyed to a pressing machine 73, where it is pressed. And it is conveyed to a welding machine 74, where tack -welding, inner surface welding, outer surface welding, etc., are effected with the bevels abutted against each other under external pressure, whereby the long- sized quadrangular steel pipe 61 can be cold-formed to have the predetermined external size W and the predetermined radius of curvature R of the outer curved surface 61a at each corner portion 61A.
Thelong-sized quadrangular steelpipe61cold-formedin this manner is conveyed to a processing means (a cutting device or the like) 75, where the outer portion of the end thereof is cut; thus, a long-sized quadrangular steel pipe 61 having a bevel of predetermined angle (35 45 ) (end surface) 61b cut in the end thereof is obtained.
Further, the cold forming of the short-sized quadrangular steel pipe 62 is effected first by preparing a flat plate blank, i.e., a thick steel plate 76 having a thickness T greater than the wall thickness t of the long-sized quadrangular steel pipe 61 and having alength Land width forming a panel zone,conveying this thick steel plate 76 to a beveling machine 77, where it is formed with a bevel. Subsequently, the thick steel plate 76 is conveyed to a pressing machine 78, where it is pressed.
And it is conveyed to a welding machine 79, where tack welding, inner surface welding, outer surface welding, etc., are
effected with the bevels abutted against each other under external pressure, whereby the short-sized quadrangular steel pipe 62 can be coldformed to have the predetermined external size W and the predetermined radius of curvature R of the outer curved surface 62a at each corner portion 62A.
At this point, the long-sized and short-sized quadrangular steel pipes 61 and 62 are cold-formed so that they are the same in the external size W and the radius of curvature R. Of the thus-producedlong-sized and shortsized quadrangular steel pipes 61 and 62, the long-sized quadrangular steel pipe 61 has a quadrangular ring-like patch 63 fitted in the end thereof and fixed thereto by a weld 64. In addition, the end of the shortsized quadrangular steel pipe 62 is not beveled for welding but is left as a flat end surface (end surface) 62b.
The long-sized and short-sized quadrangular steel pipes 61 and 62 formed in the manner described above are linearly positioned with their outer peripheral shapes conforming to each other, and then the outer end surface 63b of the patch 63 positioned inside the long-sized quadrangular steel pipe 61 is abutted against the flat end surface 62b of the short- sized quadrangular steel pipe 62. That is, the bevel (end surface) 61b of the long-sized quadrangular steel pipe 61 is opposed to the flat end surface 62b of the short-sized quadrangular steel pipe 62, which is not beveled.
And as shown in FIGS. 22 and 23, in the same manner as in the first embodiment described above, joining by a weld (arc weld or the like) 65 along the entire periphery from outside provides a quadrangular steer pipe column (an example of column member steel pipe) 66 using the short- sized quadrangular steel pipe 62 as a panel zone. Further, beam flanges or beam members
67 are joined by welds 68 to the outer surface of the short-sized quadrangular steel pipe 62 of length L forming the zone panel.
A sixth embodiment of the invention, employing a round steel pipe, will now be described with reference to FIGS. 26 through 28. That is, as shown in FIG. 26, the arrangement comprises long-sized round steel pipes (an example of long-sized steel pipe) 81 having a predetermined wall thickness t, and a short-sized round steel pipe (an example of short- sized steel pipe) 82 of length (height) L having a wall thickness T greater than the wall thickness t of the long-sized round steel pipes 81 and forming a panel zone.
And,thelong-sized and short-sized quadrangular steer pipes 81 and 82 are cold-formed so that they are the same in the outer peripheral shape, i.e., the outer diameter D. Further, the long-sized round steel pipe 81 is cut at the outer portion of the end thereof; thus, the end is formed with a bevel 81b of predetermined angle (35 - 45 ). Further, a ring-like patch 83 is fitted in the end of the long-sized round steel pipe 81, and then fixed thereto by a weld 84. In addition, the end of the short-sized round steel pipe 82 is not beveled but is left as a flat end surface 82b.
The long-sized and short-sized round steel pipes 81 and 82 formed in the manner described above are concentrically and linearly positioned, and then the outer end surface 83b of the patch 83 positioned inside the longsized round steel pipe 81 is abutted against the flat end surface 82b of the short-sized round steel pipe 82. That is, the bevel (end surface) 81b of the long-sized round steel pipe 81 is opposed to the flat end surface 82b of the short-sized round steel pipe 82, which is
not beveled.
And as shown in FIGS. 27 and 28, in the same manner as in the first embodiment described above, joining by a weld (arc weld or the like) 85 along the entire periphery from outside provides a round steel pipe column (an example of column member steel pipe) 86 using the short-sized round steel pipe 82 as a panel zone. In this case, the joining by the weld 85 can be suitably effected by utilizing the patch 83.
As in the first through sixth embodiments described above, the ends of the short-sized quadrangular steel pipes 2, 32, and 62 and short-sized round steel pipes 22, 52, and 82 are not beveled for welding but are left as flat end surfaces tend surfaces) 2b, 32b, 62b, 22b, 52b, and 82b; thus, the short-
sized quadrangular steel pipes 2, 32, and 62 and short-sized round steel pipes 22, 52, and 82 can be formed in a reduced production time and at low cost. Further, since thelong-sized quadrangular steel pipes 1, 31, and 61 and the long-sized round steel pipes 21, 51, and 81 can have their bevels lb, 31b, 61b, 21b,51b,and81bmachined fromoutside, thebevelscanbeformed in a reduced production time and at low cost. In this case, the joining by welds 5, 35, 65, 25, 55, and 85 can be suitably effected by using patches 3, 33, 63, 23, 53, and 83.
As inthefirst,third, end fifthembodmenta described above, the joining between the long-sized quadrangular steel pipes 1, 31, and 61 and the short-sized quadrangular steel pipes 2, 32, and 62 by the welds 5, 35, and 65 between the corner portions 1A, 2A, 31A, 32A, 61A, and 62A is effected more smoothly and efficiently, suitably all the time because the radii of curvature, R. of the opposed outer curved surfaces la, 2a, 31a, 32a, and 61a, 62a are the same, with no step portion (linear
misalignment) formed.
As in the first, third, and fifth embodiments described above, according to the quadrangular steel pipe columns 6, 36, and 66 employing the thickwalled short-sized quadrangular steel pipes 2, 32, and 62, in the case of the long-sized quadrangular steel pipes 1, 31, and 61 and the short-sized quadrangular steelpipes 2, 32, and 62, stress transmission can be effected more suitably because the radii Of curvature, R. of the opposed ends are the same, with no step portion (linear misalignment) formed.
Asin the first,third,and fifth embodiments described above, the panel zone can secure a sufficient strength by means of the predetermined increased wall thickness T of the short-sized quadrangular steel pipes 2, 32, and 62, and the joining of the beam flanges or beam members 7, 37, and 67 by the welds 8, 38, and 68 can be effected without any trouble. Further, the quadrangular steel pipe columns 6, 36, and 66 are obtained in the pipe joint type, which can be finished so that there is no contained rib or the like. Therefore, an arrangement having concrete or the like filled therein can be easily employed.
At this time, if a predetermined spacing (50 - 300 mm) 1 is given between the flat end surfaces 2b, 32b, and 62b of the short-sized quadrangular steelpipes2, 32, and62 end the upper and lower surfaces 7b, 37b, and 67b of the beam flanges or beam members 7, 37, and 67, then there is obtained the effect that a hinge action is produced in the vicinity of the upper andlower ends of the short-sized quadrangular steel pipes 2, 32, and 62 of length L forming a panel zone.
That is, when the panel zone portion where the column and the beam are joined is to be controlled to prevent them from
yielding under earthquake force or is to be allowed to yield, it is necessary to design on the safety side considering the balance of the entire building. In this case, in the method of joining the panel zone portion where stress concentration occurs to the column where the influence of stress is relatively low, the use of this joint construction that is easy to form is featured by the formation of a plastic hinge in the vicinity of the panel zone by earthquake force and by the smooth transmission of earthquake force from the panel zone portion to the column.
In the first, third, and fifth embodiments described above, the quadrangular steel pipes 1, 2, 31, 32, 61, and 62 that are square in cross section are employed as quadrangular steel pipes; however, a quadrangular steel pipe that is rectangular in cross section may also be employed. Further, other various steel pipes of polygonal shape, such as regular pentagon or regular hexagon may likewise be used.
In the first through sixth embodiments described above, the short-sized quadrangular steel pipes 2, 32, and 62 and short-sized round steel pipes 22, 52, and 82 have a length L forming a panel zone; however, the length of the short-sized quadrangular steel pipes 2, 32, and 62 and short-sized round steel pipes 22, 52, and 82 is optionally set according to other service places than the panel zone.
In the first through sixth embodiments described above, the long-sized quadrangular steel pipes 1, 31, and 61 and the short-sized quadrangular steel pipes 2, 32, and 62 and the long-sized round steel pipes 21, 51, and 81 and the short-sized round steel pipes 22, 52, and 82 are joined by the welds 5, 35, 65, 25, 55, and 85, thereby constituting the quadrangular steer
pipe columns 6, 36, and 66 and the round steel pipe columns 26, 56, and 86, with the short-sized quadrangular steel pipes 2, 32, and 62 and the short-sized round steel pipes 22, 52, and 82 used aspanelzones and these quadrangular steer pipe columns 6, 36, and 66 and the round steel pipe columns 26, 56, and 86 are conveyed to a building site or the like, where the beam flanges or beam members 7, 37, and 67 are joined to the outer surfaces of the short-sized quadrangular steel pipes 2, 32,and 62 and the short-sized round steel pipes 22, 52, and 82 by the welds 8,38, and 68; however, the long-sized quadrangular steer pipes 1,31, and Gland the short-sized quadrangular steelpipes 2, 32, and 62 and the long-sized round steel pipes 21, 51, and 81 and the short-sized round steel pipes 22, 52, and 82 may be conveyed to a building site or the like, where they are joined respectively by the welds 5, 35, 65, 25, 55, and 85, thereby constituting the quadrangular steel pipe columns 6, 36, and 66 and the round steel pipe columns 26, 56, and 86, with the short-sized quadrangular steel pipes 2, 32, and 62 and the short-sized round steer pipes 22,52,and82usedas panelzones.
Further, after the beam flanges or beam members 7, 37, and 67 have been joined to the outer surfaces of the short-sized quadrangular steelpipes2, 32, and62 end the short-sized round steel pipes 22, 52, and 82 by the welds 8, 38, and 68, the assemblies may be conveyed to a building site or the like.
Further,connectingplates used for connecting the beam flanges or beam members 7, 37, and 67 may be attached to the outer surfaces of the shortsized quadrangular steer pipes 2, 32, and 62 and the short-sized round steel pipes 22, 52, and 82.
In the first, third, and fifth embodiments described above, included among the quadrangular steel pipes 1, 2, 31, 32, 61,
and 62 are, for example, one-seam quadrangular steel pipes formed by rolling, two-seam quadrangular steel pipes each formed by butt-welding a pair of press-formed channel section membersabuttedagainsteachother,twoseamquadrangularsteel pipes each formed by welding a pair of rolled channel section members, two-seam quadrangular steel pipes each formed by welding a pair of rolled angle steel members abutted against each other, four-sided boxes, and seamless steel pipes, each being a ready-made quadrangular steel pipe.
In the first through sixth embodiments described above, the welding is by an electroslag welding machine or electrogas arc welding machine, which allows high quality welding to be effected in a short time. In addition, other welding systems, including laser, may be used.
In the first through sixth embodiments described above, the quadrangular and round short-sized steel pipes are of higher material quality than the quadrangular and round long-sized steelpipes, whereby the value of yield point (unit;Newton/mm2) can tee selected so that when it is [235] forthelong-sizedsteel pipe, it is [325] for the short-sized steel pipe and when it is [325] for the long-size steel pipe, it is 1355] for the short-sized steel pipe. In addition, the short-sized and long-sized steel pipes may be of the same quality.
Claims (10)
1. A joint construction of column member steel pipes, comprising a longsized steel pipe of a predetermined wall thickness and a short-sized steel pipe of a greater wall thickness than that of the long-sized steel pipes, characterized in that the long-sized and shon-sized steel pipes are formed by cold or hot forming to have a same outer peripheral shape, and the long-sized and short-sized steel pipes are jointed by welding from outside in a state that an end surface of the long-sized steel pipe is opposed to an end surface of the short-sized steel pipe having no bevelled portion.
2. The joint construction of column member steel pipes as set forth in Claim 1,
wherein the long-sized and short-sized steel pipes are quadrangular steel pipes, and these long-sized and short-sized quadrangular steel pipes are formed by hot forming to have a same external width and a same outer curved surface at each coiner portion.
3. The joint construction of column member steel pipes as set forth in Claim 1, wherein the long-sized and short-sized steel pipes are round steel pipes, and these long-sized and short-sized round steel pipes are formed by hot fanning to have a same outer diameter.
4. The joint construction of column member steel pipes as set forth in Claim 1, wherein the short-sized steel pipe has a length forming a panel zone.
5. The joint construction of column member steel pipes as set forth in Claim 1, wherein the long-sized and short-sized steel pipes are joined by welding from outside in a state that a patch metal positioned inside the long-sized steel pipe is abutted against an end surface of the shortsized steel pipe.
6. The joint construction of coluTnn member steel pipes as set forth in Claim 1, wherein the long-sized and short-sized steel pipes are quadrangular steel pipes, and the long-sized quadrangular steel pipe is formed by cold forming, while the short-sized quadrangular steel pipe is formed by hot forming to have a same external width and a same outer curved shape at each corner portions as those of the long-sized quadrangular steel pipe.
7. The joint construction of column member steel pipes as set forth in Claim 1, wherein the long-sized and short-sized steel pipes are round steel pipes, and the long-sized round steel pipe is cold-formed, while the short-sized round steel pipe is formed by hot forming to have a same outer diameter as that the long-sized round steel pipe.
8. The joint construction of column member steel pipes as set forth in Claim 1, wherein the long-sized and short-sized steel pipes are quadrangular steel pipes, and these long-sized and short-sized quadrangular steel pipes are cold-fonned to have a same external width and a same outer curved surface at each comer portion.
9. The joint construction of column member steel pipes as set forth in Claim 1, wherein the long-sized and short-sized steel pipes are round steel pipes, and the long-sized and short sized round steel pipes are cold-formed to have a same outer diameter.
10. A joint construction of column member steel pipes substantially as described herein with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002188842A JP2004027741A (en) | 2002-06-28 | 2002-06-28 | Joint structure of steel pipe for column member |
| JP2002188843A JP2004027742A (en) | 2002-06-28 | 2002-06-28 | Joint structure of steel pipe for column member |
| JP2002188841A JP2004027740A (en) | 2002-06-28 | 2002-06-28 | Joint structure of steel pipe for column member |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0300937D0 GB0300937D0 (en) | 2003-02-12 |
| GB2390125A true GB2390125A (en) | 2003-12-31 |
| GB2390125B GB2390125B (en) | 2004-08-18 |
Family
ID=27348123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0300937A Expired - Lifetime GB2390125B (en) | 2002-06-28 | 2003-01-15 | Joint construction of column member steel pipes |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN1306127C (en) |
| DE (1) | DE10261604B4 (en) |
| FR (1) | FR2841579B1 (en) |
| GB (1) | GB2390125B (en) |
| HK (1) | HK1060378A1 (en) |
| MY (1) | MY130349A (en) |
| SG (1) | SG108310A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023167A3 (en) * | 2009-08-28 | 2011-04-28 | V & M Deutschland Gmbh | Method for producing hot-rolled hollow profiled elements having a rectangular cross-section and small edge radii |
| CN102401195A (en) * | 2010-09-16 | 2012-04-04 | 江苏瀚森不锈钢有限公司 | Stainless steel reducing pipe and machining method thereof |
| RU2483851C1 (en) * | 2011-12-27 | 2013-06-10 | Общество с ограниченной ответственностью "Балтийские технологии" | Tube weld assembly and method of its making |
| WO2014184434A3 (en) * | 2013-05-13 | 2015-03-05 | Outotec (Finland) Oy | A drive supporting structure and a drive support element |
| CN113684933A (en) * | 2021-09-22 | 2021-11-23 | 福建互华土木工程管理有限公司 | Steel column butt joint support frame and steel column butt joint construction method |
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| CN102011432B (en) * | 2010-11-24 | 2012-01-25 | 同济大学 | Novel polygonal combined steel pipe |
| CN107143035A (en) * | 2017-05-24 | 2017-09-08 | 安徽鸿路钢结构(集团)股份有限公司 | A kind of nodes domains post jamb is put more energy into formula bean column node |
| CN107338866B (en) * | 2017-07-03 | 2019-05-24 | 云南中乾集成房屋有限公司 | A kind of connection method and connection structure of steel structure column beam rigid joint |
| CN109514019B (en) * | 2018-10-19 | 2019-10-22 | 一科能源科技（天津）有限公司 | A kind of column welding method based on interior lining panel |
| CN112282051B (en) * | 2020-10-24 | 2022-07-12 | 江苏南通三建集团股份有限公司 | Steel column installation structure capable of being installed quickly and process thereof |
| CN115194274A (en) * | 2021-04-09 | 2022-10-18 | 株式会社神户制钢所 | Method for manufacturing reinforced pipe and reinforced pipe |
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| FR2109212A5 (en) * | 1970-10-07 | 1972-05-26 | Castelli Jean | |
| DE3679957D1 (en) * | 1985-09-24 | 1991-08-01 | Shimizu Construction Co Ltd | STEEL PIPE FILLED WITH BUILDING FUEL. |
| US5218802A (en) * | 1990-01-16 | 1993-06-15 | Shimizu Construction Co., Ltd. | Column and beam connecting assembly |
| EP0843053A1 (en) * | 1996-11-15 | 1998-05-20 | Dyckerhoff & Widmann Ag | Frictional connection between column and beam or between beams |
| JP2001303661A (en) * | 1999-11-17 | 2001-10-31 | Nakajima Steel Pipe Co Ltd | Steel pipe column and manufacturing method thereof |
-
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- 2002-12-28 DE DE2002161604 patent/DE10261604B4/en not_active Expired - Lifetime
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- 2003-01-07 MY MYPI20030045 patent/MY130349A/en unknown
- 2003-01-14 CN CNB031016790A patent/CN1306127C/en not_active Expired - Lifetime
- 2003-01-15 GB GB0300937A patent/GB2390125B/en not_active Expired - Lifetime
- 2003-01-21 SG SG200300127A patent/SG108310A1/en unknown
- 2003-06-30 FR FR0307887A patent/FR2841579B1/en not_active Expired - Lifetime
-
2004
- 2004-05-14 HK HK04103409A patent/HK1060378A1/en not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| JP2001227061 (Nakajima) 24.08.2001 (all figures and WPI abstract accession number 2001-630621 [73]) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023167A3 (en) * | 2009-08-28 | 2011-04-28 | V & M Deutschland Gmbh | Method for producing hot-rolled hollow profiled elements having a rectangular cross-section and small edge radii |
| US20120244372A1 (en) * | 2009-08-28 | 2012-09-27 | V & M Deutschland Gmbh | Method for producing hot rolled hollow sections having a rectangular cross-section and small edge radii |
| DE102009039710B4 (en) * | 2009-08-28 | 2014-03-20 | V&M Deutschland Gmbh | Method for producing hot-rolled hollow sections with small edge radii, hollow profile and use of the hollow profile |
| US9056344B2 (en) | 2009-08-28 | 2015-06-16 | Vallourec Deutschland Gmbh | Method for producing hot rolled hollow sections having a rectangular cross-section and small edge radii |
| CN102401195A (en) * | 2010-09-16 | 2012-04-04 | 江苏瀚森不锈钢有限公司 | Stainless steel reducing pipe and machining method thereof |
| RU2483851C1 (en) * | 2011-12-27 | 2013-06-10 | Общество с ограниченной ответственностью "Балтийские технологии" | Tube weld assembly and method of its making |
| WO2014184434A3 (en) * | 2013-05-13 | 2015-03-05 | Outotec (Finland) Oy | A drive supporting structure and a drive support element |
| CN113684933A (en) * | 2021-09-22 | 2021-11-23 | 福建互华土木工程管理有限公司 | Steel column butt joint support frame and steel column butt joint construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10261604A1 (en) | 2004-03-25 |
| HK1060378A1 (en) | 2004-08-06 |
| GB0300937D0 (en) | 2003-02-12 |
| FR2841579B1 (en) | 2007-09-21 |
| MY130349A (en) | 2007-06-29 |
| CN1306127C (en) | 2007-03-21 |
| GB2390125B (en) | 2004-08-18 |
| FR2841579A1 (en) | 2004-01-02 |
| DE10261604B4 (en) | 2011-07-28 |
| SG108310A1 (en) | 2005-01-28 |
| CN1467349A (en) | 2004-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Expiry date: 20230114 |