JP6260906B2 - Steel structure pile pillar-to-base beam joint integrated method - Google Patents

Steel structure pile pillar-to-base beam joint integrated method Download PDF

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JP6260906B2
JP6260906B2 JP2014199149A JP2014199149A JP6260906B2 JP 6260906 B2 JP6260906 B2 JP 6260906B2 JP 2014199149 A JP2014199149 A JP 2014199149A JP 2014199149 A JP2014199149 A JP 2014199149A JP 6260906 B2 JP6260906 B2 JP 6260906B2
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steel
pile
column
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JP2015086692A (en
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内田 昌克
昌克 内田
岩郷 俊二
俊二 岩郷
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株式会社アークリエイト
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The present invention relates to a technique method for manufacturing a contact point between a superstructure of a steel frame building and a civil engineering foundation structure with high strength and high accuracy by welding.
As shown in Fig. 1, a steel building is usually composed of a square steel pipe, a round steel pipe, a pillar 1 made of H-shaped steel and a beam 2 made of H-shaped steel, and the joint between the pillar and the beam is a joint. As shown in FIG. 2, in the case of a column 1 using a square steel pipe, the joint portion 3 is composed of parts of a diaphragm 5 and a short column tube 6 and is manufactured by welding 7, and the joint portion, the column 1 and the beam are formed. 2 are joined by welding 7.
The foundation 4 shown in FIG. 1 supports the steel building structure. The foundation 4 includes an independent foundation, a composite foundation that supports two or more pillars with one foundation, and a fabric foundation that continuously forms footings. After these foundations are made, the pillar 1 is connected to the foundation, and the building and the foundation are united.
FIG. 4 shows a schematic view of a steel building constructed on a conventional independent foundation. The building is generally composed of pillars 1, beams 2, and joints or joints 3. The foundation 9 that supports the pillars 1 or the ground 9 on which the piles 8 are installed is excavated to a prescribed depth to form holes of a prescribed shape. Then, a mold having a predetermined shape is produced at the hole, and the concrete 10 is placed, and a curing period of about one week is obtained and solidified. Moreover, the foundation beams 11 of horizontal members are used to connect the foundations to increase the rigidity of the entire building, thereby suppressing uneven settlement.
An example of Japanese Patent Application No. 9-348841 is shown. In FIG. 5, the schematic diagram of the pile pillar integrated construction method which improved the foundation of the conventional type is shown. In this construction method, a conventional foundation is not used, and a steel pipe pile 18 is screwed into the ground 9 with a screw 19 attached to the tip, and the upper portion is cut to an appropriate dimension at the surface portion of the steel pipe pile 18 to a certain height. The pile flange 16 is welded, and the pile flange 16 and the column base plate 12 are fixed with bolts 15 and nuts 14 with the spacer 12S interposed therebetween.
An example of Japanese Patent Application No. 2002-052860 is shown. In FIG. 3, the column 1 and the beam 2 are welded and joined to a solid dice 17 whose column-beam joint is taken from a rolled steel plate or the like, and does not have a complicated structure as shown in FIG.
Japanese Patent Application No. 9-348841 Japanese Patent Application No. 2002-052860
The conventional foundation work has the following problems as described in Patent Document 1.
(1) It is necessary to excavate the ground deeply and extensively, and the amount of excavation work is large, and a large amount of residual soil is produced, which requires cost and labor. In addition, vibration, noise, and dust are generated, which may cause environmental problems.
(2) Need for concrete placement and curing period (3) Large footings, foundation beams and wide foundations are required. In addition to the high cost and long curing period, construction in narrow places is inconvenient. There are many cases.
Patent Document 1 has the following problems.
(1) The structure of the pile-column joint is more complex than the conventional column-beam joint. It takes time to adjust the height adjustment spacer.
(2) It is difficult to adjust the horizontal position of the column. (3) It is difficult to ensure the large rigidity and strength of the pile flange portion 16.
(4) If the surface ground is weak, the single steel pipe pile is weak against the bending strength of the column.
Patent Document 2 has the following problem.
(1) Although the structure of the joint is simple, the number of manufacturing steps is small and the strength is high, but the position adjustment between members corresponding to the civil engineering foundation accuracy cannot be performed.
(2) Good for factory production, but poor on-site weldability for solid steel such as fixed steel sheets.
As a result of various studies, it is clear that these problems can be solved by changing the shape of the column bottom or the method of joining the steel pipe piles using solid steel made of steel by rolling, forging or casting. became.
The construction of the invention according to claim 1 is a building steel structure, in which the vertical dimension is first smaller than the horizontal dimension, and a plurality of rolled steels that are welded and joined together in a single or vertical direction. This is to use solid steel material made of wood, forging, or cast material, and in the following configuration, regardless of whether one or more piles standing on the ground are gas-cut at a predetermined height on the construction site A 0.5-5m steel short pipe pile or steel pipe pile is installed at the bottom of the solid steel material, and the top end of the pile is attached by welding to the solid steel material, and the bottom of the steel short pipe and the top of the pile head are butted together. Welding, or providing a steel pipe pile or a composite pile at the lower end of the steel short pipe pile, or fillet welding the steel short pipe lower end and the pile head outer surface, or the steel short pipe outer surface And the upper end of the pile head are joined by fillet welding,
The problems of (1), (2) and (3) of Patent Document 1 described in Paragraph 8 and (1) and (2) of Patent Document 2 described in Paragraph 9 can be solved. That is, various problems are solved by welding and joining in a construction site using a simple solid steel material having a flat upper surface that is stronger than concrete.
Examples are shown in FIGS. In these examples, the welding is performed on the upper or lower side of the outer edge of the single and plural flanged through diaphragms or outer diaphragms attached to the steel short pipe, or both, and the outer edge of the through diaphragm or the outer diaphragm. It is also possible to increase the thickness to improve the fixation with reinforced concrete.
6 and 7 show that a steel short pipe with a pillar and a beam attached to the upper part of a solid steel material and one or more flanged through diaphragms or outer diaphragms attached to the lower part and a base plate at the lower part thereof. The situation figure which attached (bottom plate) is shown. The lower column base 1C of the solid steel material 17 is a steel short pipe pile of 0.5 to 5 m, and one or a plurality of through diaphragms or outer diaphragms 52 are provided in the middle thereof. This diaphragm causes the axial force of the column 1B. When the column moment is to be borne, welding is sometimes performed on the outer edge of the diaphragm to make a protrusion.
Figure 8 shows solid steel and column diaphragms combined with columns and beams attached to the upper part, and a steel short pipe with a plurality of flanged through diaphragms or outer diaphragms attached to the lower part. Fig. 2 shows the situation with the base plate (bottom plate) attached. This method is possible when the central axes of the column 1B and the column base 1C are hardly displaced. As shown in FIGS. 29 and 30, even if the central axis of the column 1B and the column base or the pile 1C is shifted by δ, the beam can be easily attached to the column by removing the beam lower flange portion by about δ.
Fig. 9 shows that a steel short tube with a plurality of flanged through-diaphragms or outer diaphragms attached to the lower part of a solid steel material with pillars and beams with misalignment δ relative to the pile on the upper part, and further on the lower part. It is the situation figure which attached the base plate (bottom plate). In this case, the column diaphragm 5 and the column shaft steel material 17 are integrated.
FIG. 10 is a situation diagram in which a column and a beam are attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe is attached to the lower part, and a steel pipe pile or a composite pile is further attached by butt welding.
FIG. 11 is a diagram showing a situation where a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe is attached to the lower part, and the steel short pipe is further attached to the inside of the steel pipe pile by fillet welding.
FIG. 12 shows a case in which a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe is attached to the lower part, and the steel short pipe is further fillet welded on a temporary ring placed outside the steel pipe pile. It is the attached situation figure.
FIG. 13 shows a case where a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe is attached to the lower part, and the short steel pipe is further placed on the outside of the steel pipe pile by fillet welding. It is the attached situation figure.
In the configuration of the invention according to claim 2, in the steel structure,
First, for a solid steel material having a vertical dimension smaller than the horizontal dimension and consisting of a plurality of rolled, forged or cast members that are welded and joined together in a single or vertical direction,
It is a method for manufacturing a steel structure by welding both or one of the upper end of the steel pipe pile and the lower end of the building steel column by welding, and the following configuration consists of a solid steel upper part, a square steel pipe, a round shape It is a method in which a cut tee haunch with a taper is welded to the corner between the lower ends of the steel pipe or the steel steel column of the H-shaped steel. This cut tea haunch can be attached in any direction in any direction around the pillar. Cut tea haunches may be used independently or may be welded together.
FIG. 14 shows an embodiment.
FIG. 14 (A) shows a front surface in which a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe or the like is attached to the lower part, and a cut steel haunch is attached to the solid steel material (KK ring) and the column. A cross-sectional view is shown. (B) is an external top view, and (C) is a top view of an AA cross section in which cut tea hunches are joined together by welding.
In the configuration of the invention according to claim 3, in the steel structure,
First, for a solid steel material having a vertical dimension smaller than the horizontal dimension and consisting of a plurality of rolled, forged or cast members that are welded and joined together in a single or vertical direction,
It is a method for manufacturing a steel structure by joining both or one of the upper end of the steel pipe pile and the lower end of the building steel column by welding.
The next configuration is to install a through diaphragm or an outer diaphragm between the solid steel material and the bottom plate welded to the bottom of the square steel tube or round steel tube, and the third configuration is to attach the bottom plate to the bottom plate. It is a method of fixing to the improved ground with an anchor.
An embodiment is shown in FIGS.
FIG. 15 is a situation diagram in which a base plate (bottom plate) 54 is attached to the lower part of a steel short pile, and the base plate is further fixed with an anchor.
FIG. 16 shows a situation diagram in which a base plate is attached after a diaphragm is attached to the lower part of a steel short pile, and the base plate is further fixed by an anchor.
Fig. 17 shows a combination of solid steel and a column diaphragm, a column and a beam attached to the upper part, and a steel short tube with a single flanged through diaphragm or an outer diaphragm attached to the lower part. Fig. 18 shows a situation where a base plate is attached to the lower part of a steel short pile, and the base plate is fixed with an anchor. Fig. 18 shows a solid steel material and a column diaphragm combined with a column on the top. And reinforced concrete (
RC) A situation in which a steel short pipe with a plurality of flanged through-diaphragms or an outer diaphragm is installed in the lower part and a base plate (bottom plate) is installed in the lower part of the steel plate. Is a situation diagram in which the base plate is further fixed with an anchor. It is characterized in that the rebar of the flanged diaphragm or the outer diaphragm is flared.
FIG. 19 shows a steel short pipe with a pillar attached to the upper part of a single steel plate and a plurality of flanged through diaphragms or an outer diaphragm attached to the lower part, and a base plate (bottom plate) at the lower part. It is the attached situation figure.
FIG. 20 shows a steel short pipe in which a pillar and a beam are attached to the upper part of a single steel plate and a plurality of flanged through diaphragms or outer diaphragms are attached to the lower part, and a base plate (bottom plate) is further provided on the lower part. ) Is a situation diagram fixed with a mounting anchor.
In FIG. 21, a column and a beam are attached to the upper part of a solid steel material composed of an inner ring and an outer ring, a steel short pipe is installed at the lower part, and a base plate (bottom plate) is attached to the lower part and fixed with anchors. It is a situation diagram.
FIG. 22 shows a steel short pipe in which a column and a beam are attached to the upper part of a solid steel material composed of an inner ring and an outer ring, and a plurality of flanged through diaphragms or outer diaphragms are attached to the lower part. It is the situation figure which fixed the base plate (bottom plate) to the lower part with the attachment anchor.
In the configuration of the invention according to claim 4, in the steel structure,
First, for a solid steel material having a vertical dimension smaller than the horizontal dimension and consisting of a plurality of rolled, forged or cast members that are welded and joined together in a single or vertical direction,
In the second configuration in the method of manufacturing a steel structure by joining both or one of the upper end of the steel pipe pile and the lower end of the building steel column by welding, the upper surface of the solid steel material, the square steel pipe, and the round steel pipe Or, the lower end of an H-shaped steel building steel column is welded or joined, or a through hole is provided in the center of a solid steel material, and a square steel pipe, a round steel pipe, or an H-shaped steel is passed through the through hole. Weld the actual steel material and the square or round steel pipe,
In the third configuration, the cement mortar is filled through the pillar or the solid material into the upper end of the pile attached to the lower end of the solid steel material or the steel short pipe welded to the upper end of the pile.
In a 4th structure, it is that the external dimension of a pile is larger than the external structural dimension of a square steel pipe, a round steel pipe, or an H-section steel architectural steel column lower end.
Examples are shown in FIGS.
FIG. 23 shows a solid steel material, that is, a column attached to the upper part of a KK ring, a pile attached to the lower part thereof, a concrete stopper plate installed in the pile, and a cement made through a KK ring with a hole in the steel short pipe. It is a situation figure filled with mortar.
FIG. 24 shows a solid steel material, that is, a column attached to the upper part of the KK ring, a steel short pipe attached to the lower part thereof, a steel pipe pile or a composite pile attached thereto by butt welding, and a hole formed in the steel short pipe. Fig. 25 shows the situation where the cement mortar is filled through the KK ring. Fig. 25 shows a solid steel material, that is, a column is inserted through the KK ring, a steel short pipe is attached to the lower part, and a steel pipe pile or a composite pile is attached by butt welding. Furthermore, it is the situation figure which filled the cement mortar through the KK ring which opened the hole in the steel short pipe.
FIG. 26 shows a solid steel material, that is, through a KK ring in which a pillar is attached by penetrating a KK ring, a pile is attached to the lower part thereof, a concrete stopper plate is installed in the pile, and a hole is formed in a steel short pipe. It is a situation figure filled with cement mortar.
In the structure of the invention which concerns on Claim 5, in an architectural steel structure,
In steel structures,
First, for a solid steel material having a vertical dimension smaller than the horizontal dimension and consisting of a plurality of rolled, forged or cast members that are welded and joined together in a single or vertical direction,
In the second configuration in the method of manufacturing the steel structure by joining both or one of the upper end of the steel pipe pile and the lower end of the building steel column by welding, the upper end of the pile and the lower end of the building steel column are Both are joined by welding in the construction site through solid steel materials, and in the third configuration, the upper end of the steel pipe pile, the solid steel plate, and the steel steel column are covered with reinforced concrete. It is. A 4th structure is that the external dimension of a pile is larger than a column external dimension.
In the invention according to the first, second, third, or fourth aspect of the invention, a structure in which a part or the whole of a solid steel material, a ground surface, or a beam installed in the ground is covered with reinforced concrete is added. With this configuration, not only the corrosion resistance of the solid steel material or the ground surface / underground beam but also the strength of the pile column joint can be improved.
Examples are shown in FIGS.
FIG. 27 shows a situation where a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe or a pile is attached to the lower part, and the lower part of the pillar, the solid steel material and the upper part of the pile are filled and reinforced with concrete. Show.
FIG.
Solid steel, that is, a column and a beam are attached to the top of the KK ring, a steel short pipe or pile is attached to the bottom, and the bottom of the column, the end of the beam, the solid steel and the top of the pile are filled and reinforced with concrete The figure is shown.
In the invention according to claim 1,
(1) It is not necessary to excavate the ground deeply and widely, the amount of excavation work is small, there is almost no residual soil, and the cost and effort are hardly required for the treatment. In addition, there is almost no risk of environmental problems due to vibration, noise and dust.
(2) No need for concrete placement and curing period (3) No need for large footings, foundation beams and wide foundations, no problems with cost and curing period, and construction in narrow areas is possible .
(4) The structure is simple compared to the conventional pile-column joint of Patent Document 1. Further, compared to the conventional Patent Document 1, a height adjusting spacer or the like is unnecessary, and the height of the column can be adjusted by adjusting the groove gap of the horizontal welding at the construction site, so that labor is not required.
(5) The top surface of the solid steel material is smooth, the lower end of the column can be easily shifted horizontally with the top surface of the solid steel material, and the horizontal position of the column can be easily adjusted.
(6) The cross section of the solid steel material is large, and greater rigidity and strength of the pile column joint can be obtained than the concrete column base and Japanese Patent Application No. 9-348841.
(7) The structure of the joint is simple, the number of manufacturing steps is small, the strength is high, and the position adjustment between the members corresponding to the civil engineering foundation accuracy can be performed.
(8) The on-site weldability of the solid steel material and the column is good because the vertical and horizontal position adjustment of the column is easy and the posture is horizontal welding.
(9) If the solid steel material is composed of two solid steel materials obtained by rolling, forging, or casting in the horizontal direction, the manufacturing cost of the solid steel material can be reduced.
(10) The present invention can also be applied when the pile core and the column core are greatly displaced. In particular, a pillar can be installed near the adjacent land even when a pile cannot be placed where the adjacent land approaches.
(11) Since there is a steel short pipe, it is easier to adjust the pile top height by adjusting the steel short pipe length than when there is no steel short pipe. That is, the vertical position adjustment of the solid steel material is facilitated.
(12) Compared to the case where there is no steel short pipe, it can be applied to piles other than steel pipe piles, that is, PHC piles, SC piles, and the like.
(13) Compared to the case where there is no steel short pipe, the diameter of the pile abutted against the lower surface of the solid steel material by the steel short pipe can be increased or decreased.
The invention according to claim 2 has the following effect in addition to the invention according to claim 1. That is, by using a cut tee, when a smaller column diameter is used for a larger pile diameter, stress flows smoothly from the column to the pile, and stress concentration between the column and the solid steel material is reduced. This increases the joint strength. Therefore, the thickness of the solid steel material can be reduced, and even if the thickness of the column shaft steel material is the same, it is possible to withstand a larger column axial force and bending moment. Therefore, the degree of freedom to select these increases even if the column size and the pile size are different.
The invention according to claim 3 has the following effect in addition to the effects of claims 1 and 2. That is,
In the invention which concerns on Claim 3, since a 0.5 to 5m short pile is used, this method is applicable also to the ground whose support layer is shallow. Furthermore, the base plate (bottom plate) is fixed to the ground using an anchor, and there is a role of stabilizing the column base or column on the base plate. When using a column base, it helps to build a stable column.
The invention according to claim 4 has the following effect in addition to the effects of claims 1, 2, and 3. That is,
In the invention according to claim 4, the strength of the pile head can be increased by the cement mortar and the strength of the solid steel material can be increased, so that a larger column shaft load / bending moment can be endured.
The invention according to claim 5 has the following effect in addition to the effects of claims 1, 2, 3, and 4. That is, in the invention according to claim 5, with respect to a part, or the whole of a beam installed on a column, a solid steel material, a pile, and the ground surface or the ground, an improvement in ground supporting force, a column beam joint, a column pile joint Provides increased strength and resistance.
Example of a conventional architectural steel structure diagram Conventional steel beam-column joints or joints using square steel pipe columns Appearance of beam-column joint using integrated method Schematic diagram of a steel structure built on a conventional independent foundation Schematic diagram of an integrated pile pillar with improved conventional foundation Figure showing a situation in which a steel short pipe with a pillar and beam attached to the upper part of a solid steel material and a single flanged through diaphragm or outer diaphragm attached to the lower part and a base plate (bottom plate) attached to the lower part. Figure showing the situation where a steel short pipe with a pillar and a beam attached to the upper part of a solid steel material, a plurality of flanged through diaphragms or an outer diaphragm attached to the lower part, and a base plate (bottom plate) attached to the lower part. Solid steel and a column diaphragm are combined, a column and a beam are attached to the upper part, a steel short tube with a plurality of flanged through diaphragms or an outer diaphragm is installed at the lower part, and a base plate (bottom plate) is installed at the lower part. ) At the top of the solid steel material, attach columns and beams that are misaligned with respect to the pile, and at the bottom are steel short pipes with multiple flanged through diaphragms or external diaphragms, and at the bottom are base plates (bottom plates) Attached situation figure Solid steel, that is, a situation where a column and a beam are attached to the upper part of a KK ring, a steel short pipe is attached to the lower part, and a steel pipe pile or composite pile is attached by butt welding Solid steel, that is, a situation where a column is attached to the upper part of the KK ring, a steel short pipe is attached to the lower part, and the steel short pipe is further attached to the inside of the steel pipe pile by fillet welding. Figure showing the situation where a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe is attached to the lower part, and the steel short pipe is attached to the temporary ring placed outside the steel pipe pile by fillet welding. Figure showing the situation where a column is attached to the upper part of a solid steel material, that is, a KK ring, a steel short pipe is attached to the lower part, and the steel short pipe is attached to the outside of the steel pipe pile by fillet welding. The state figure which attached the column to the upper part of solid steel material, ie, KK ring, attached the steel short pipe etc. to the lower part, and also attached the cut tea haunch to the solid steel material (KK ring) and the column. (B) is a top view of an AA cross-section in which cut tea haunches are joined together by welding. A state diagram in which a base plate is attached to the bottom of a steel short pile, and the base plate is fixed with an anchor Situation where a base plate is attached after attaching a diaphragm to the lower part of a steel short pile, and then the base plate is fixed with an anchor Solid steel and a column diaphragm are combined, a column and a beam are attached to the upper part, a steel short pipe with a single flanged through diaphragm or an outer diaphragm is installed at the lower part, and a base plate (bottom plate) is installed at the lower part. ) With a base plate attached to the bottom of a steel short pile and the base plate fixed with anchors Solid steel and a column diaphragm are combined, a column and a reinforced concrete (RC) beam are attached to the upper part, and a steel short tube with a single flanged through diaphragm or an outer diaphragm is installed at the lower part. Figure of the situation where the base plate (bottom plate) is attached to the base plate. Figure showing the situation where a column is attached to the top of a solid steel material, a steel short pipe with multiple flanged diaphragms or an outer diaphragm attached to the lower part, and a base plate (bottom plate) attached to the lower part A steel short pipe with a pillar and a beam attached to the upper part of solid steel and a plurality of flanged through diaphragms or outer diaphragm attached to the lower part, and a base plate (bottom plate) attached to the lower part and fixed with anchors Figure A situation where a column and a beam are attached to the upper part of a solid steel material consisting of an inner ring and an outer ring, a steel short pipe is installed at the lower part, and a base plate (bottom plate) is attached to the lower part and fixed with anchors A steel short pipe with a pillar and a beam attached to the upper part of a solid steel material composed of an inner ring and an outer ring, and a plurality of flanged through diaphragms or an outer diaphragm attached to the lower part, and a base plate ( Situation where bottom plate is fixed with mounting anchor A column is attached to the upper part of a solid steel material, that is, a KK ring, a pile is attached to the lower part, a concrete retaining plate is installed in the pile, and a cement mortar is filled through a KK ring with a hole in the steel short pipe. Situation diagram A solid steel material, that is, a column is attached to the upper part of the KK ring, a steel short pipe is attached to the lower part, a steel pipe pile or a composite pile is attached by butt welding, and a cement is made through a KK ring with holes in the steel short pipe. Situation with mortar filled A solid steel material, that is, a column is installed by penetrating a KK ring, a steel short pipe is attached to the lower part, a steel pipe pile or a composite pile is attached by butt welding, and a hole is further drilled in the steel short pipe. Situation diagram filled with cement mortar Solid steel material, that is, a column is installed by penetrating a KK ring, a pile is attached to the lower part, a concrete stop plate is installed in the pile, and cement mortar is filled through a KK ring with a hole in the steel short pipe. Situation diagram Solid steel, that is, a column attached to the upper part of the KK ring, a steel short pipe or pile attached to the lower part, and the lower part of the pillar, the solid steel material and the upper part of the pile filled with concrete and reinforced Solid steel, that is, a column and a beam are attached to the top of the KK ring, a steel short pipe or pile is attached to the bottom, and the bottom of the column, the end of the beam, the solid steel and the top of the pile are filled and reinforced with concrete Figure As in FIG. 8, a solid steel material and a column diaphragm are combined, a column and a beam are attached to the upper part, and a steel short tube with a plurality of flanged through diaphragms or an outer diaphragm is installed at the lower part. Although it is the situation figure which attached the base plate (bottom plate) to the lower part, the situation figure when the pillar 1B and the steel foundation embedded pillar leg part 1C raise core misalignment δ As in Fig. 8, a solid steel material and a column diaphragm are combined, a column and a beam are attached to the upper part, and a steel short pipe with a plurality of flanged through diaphragms or an outer diaphragm is installed at the lower part. Although it is the situation figure which attached pile 18 to the lower part, the situation figure when pillar 1B and pile 18 raise core misalignment delta Solid steel and a column diaphragm are combined, a column and a reinforced concrete (RC) beam are attached to the upper part, and a steel short tube with a single flanged through diaphragm or an outer diaphragm is installed at the lower part. Figure of the situation where the base plate (bottom plate) is attached to the base plate. The situation of the base plate attached to the lower part of the steel short pile, and the base plate fixed with an anchor. It is characterized by being vertically penetrated. The top end of the rebar is straight or bent into a U shape.
1 Steel Column 1A Steel 1st Floor Upper Column 1B Steel 1st Floor Lower Column 1C Steel Foundation Embedded Column Base 2 Building Steel Beam 3 Building Steel Beam Joint 4 Steel Building Foundation 5 Diaphragm 6 Column Short Tube 7 Welding or Welding 7B Butt welded portion 7F Fillet welded portion 7S Slot welded 7C Welding between first floor columns 8 Foundation column or foundation pile 9 Ground or improved ground 9A Supporting ground 9B Excavated portion 10 Concrete surface plate or foundation 10A Discarded concrete 11 Foundation beam , Underground beam, ground beam 11F beam flange 11W beam web 12 base plate 12S spacer 13 anchor bolt 14 nut 15 bolt 16 pile flange 17 dice or solid steel material 17A ring-shaped solid steel material or outer ring (outer diaphragm)
17H Through hole 17J Another through hole 18 Steel pipe pile or PHC pile joined steel pipe etc. 19 Screw blade 20 Loose backing metal or loose short pipe or horizontal disk 21 Temporary fastening piece (horse)
22 Taper 23 Short tube 24 Pre-bead
25 Groove 26 Center line 27 of column 1 Center line 28 of pile 18 Beam made of H-shaped steel, square steel pipe or steel plate 29 Rigidly connected column or pin-connected intermediate column 30 Flange 31 welded to the upper surface of solid steel material 31 Flange 32 welded to the lower surface 33 Steel plate vertical blade 33 Horizontal plate 34 made of steel plate or H-shaped steel or rectangular steel pipe Steel pipe 35 to which the vertical blade and horizontal blade are attached 35 Vertical force applied to the steel pipe pile 36 Bending moment 37 applied to the steel pipe pile Loose backing metal or loose short pipe or horizontal disk 39 Backing metal 40 Temporary welding 41 Vertical height adjustment 42 Left and right position adjustment 43 Inner ring 44 Steel plate or spiral plate 45 attached to the side of steel pipe pile 45 Disc 46 Stiffener 47 Stopper for assembly 48 Cement or concrete or reinforced concrete 49 Wrap concrete 50 Cylindrical or polygonal 51 Temporary ring 52 Bottom weld 53 Cut tea haunch 54 Bottom plate 55 Support layer 56 Ground improvement or discarded concrete 57 Anchor 58 Soft ground 59 Backfill soil or improved soil 60 RC (steel reinforced) foundation beam 61 Reinforcement 62 Cement mortar 63 Through hole 64 Middle plate

Claims (5)

  1. In steel structures,
    For a solid steel material having a vertical dimension smaller than the horizontal dimension and consisting of a single member placed horizontally or a plurality of rolled, forged or cast members welded together according to the vertical direction,
    In the method of manufacturing a steel structure by joining both or one of the upper end of the steel short pipe pile and the lower end of the steel frame column by welding ,
    Attached by welding joining an upper end of the lower to 0.5 or steel-made short pipe piles of providing the steel short tube piles of 5m real steel in the the actual steel in the lower end of the steel short tube piles Further, a steel pipe pile or a composite pile is provided, and the lower end of the steel short pipe pile and the upper end of the pile head of the steel pipe pile or the composite pile are butt welded, or the lower end of the steel short pipe pile and the above A method in which the outer surface of the pile head is fillet welded or the outer surface of the steel short pipe pile and the upper inner surface of the pile head are fillet welded and joined .
  2. And have you to claim 1,
    Top and RHS of the real steel in the method for round steel pipe, or welding the cut tea tapered in the angle portion between the lower end portion of the building steel columns made of H-beams.
  3. Oite to claim 1 or 2,
    At least one flanged through diaphragm or outer diaphragm is attached in the middle of the steel short pipe pile, a floor slab is attached to the bottom of the steel short pipe pile, and the bottom slab is anchored to the improved ground below the bottom slab. How to fix with .
  4. Oite claims 1 to any one of 3,
    Top and RHS of the real steel in the, or the lower end of the building steel columns made of round steel tube or H-shaped steel is welded, or through hole provided through hole in its central portion of the solid steel in the small RHS than the outer diameter of the steel short tube piles and round steel pipe, or by penetrating the building steel columns made of H-shaped steel pillars with intermediate real steel the building steel column is welded, the A method of filling a cement mortar into the steel short pipe pile attached to the lower end of a solid steel material through the building steel column or the through hole of the solid steel material .
  5. Oite claims 1 to any one of 4,
    Both the lower end of the architectural steel column and the upper end of the steel short pipe pile larger than the lower end outer dimension of the architectural steel column are joined to the solid steel material by welding in a construction site, and the steel short pipe pile by the 3 members of the upper end and said solid steel plate the building steel columns of so as to rebar reinforced concrete coating, a method of fabricating a steel structure.
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JP2019035219A (en) * 2017-08-10 2019-03-07 新日鉄住金エンジニアリング株式会社 Pile head joint member and pile head joining method

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