JP5007108B2 - How to make a steel structure - Google Patents

Description

The present invention relates to how you manufacture accurately contacts superstructure and its civil substructure of the steel construction with high strength.

  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 (Japanese Patent Laid-Open No. 11-181790: Cited Reference 1) 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 a spacer 17 interposed therebetween.

An example of Japanese Patent Application No. 2002-052860 (Japanese Patent Laid-Open No. 2003-253758 : Cited Reference 2) will be 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 Laid-Open No. 11-181790 JP 2003-253758 A

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) It takes time for concrete placement and a period of curing .
(3) Large footings, foundation beams, and wide foundations are necessary, and in addition to the problems of cost and curing period, construction in narrow places is often inconvenient.

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 pillar .
(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) 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 has become clear that these problems can be solved by changing the shape of the solid steel material and the joining method using a solid steel material produced by rolling, forging or casting. It was.

The invention according to claim 1 is an architectural steel frame structure in which a solid steel material by rolling, forging or casting is interposed, and a plurality of steel pipe piles cut at a predetermined height after standing on the ground, a square steel pipe, A method of manufacturing a steel structure by joining a steel pipe or a steel column of H-shaped steel by welding in a construction site,
As the solid steel material, a first solid steel material having a plurality of through holes having an inner diameter larger than the outer diameter of the upper end portion of each steel pipe pile, and a plurality of pieces that can be fitted to the outside of the upper end portion of each steel pipe pile. Preparing a ring-shaped second solid steel material;
A step of disposing the first solid steel material by penetrating the through holes to the outside of the steel pipe piles at the upper ends of the steel pipe piles cut at a predetermined height after standing on the ground; and
Fitting each second solid steel material to the outside of the upper end of each steel pipe pile and placing it on the upper side of the first solid steel material;
Fixing each second solid steel material and each steel pipe pile by welding;
Fixing each second solid steel material and the first solid steel material by welding;
Fixing the steel column and the first solid steel material by welding;
It is characterized by having.
Thereby, the problems of Patent Document 1 and Patent Document 2 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 with high strength.

The invention according to claim 2 is a construction steel frame structure, in which a plurality of steel pipe piles cut at a predetermined height after standing on the ground with a solid steel material by rolling, forging or casting, a square steel pipe, a round A method of manufacturing a steel structure by joining a steel pipe or a steel column of H-shaped steel by welding in a construction site,
As the solid steel material, a first solid steel material having a plurality of through holes having an inner diameter larger than the outer diameter of the upper end portion of each steel pipe pile, and a plurality of pieces that can be fitted to the outside of the upper end portion of each steel pipe pile. Preparing a ring-shaped second solid steel material;
A step of fitting each second solid steel material to the outer side of the upper end of each of the steel pipe piles at the upper end of the plurality of steel pipe piles cut at a predetermined height after standing on the ground; and
Placing the first solid steel material on the upper side of each steel pipe pile with the respective through holes positioned on the upper side of each second steel pipe pile;
Fixing each second solid steel material and each steel pipe pile by welding;
Fixing each second solid steel material and the first solid steel material by welding;
Fixing the steel column and the first solid steel material by welding;
It is characterized by having.

According to a third aspect of the present invention, in a steel structure, a plurality of steel pipe piles cut at a predetermined height after standing on the ground with a solid steel material by rolling / forging or casting, a square steel pipe, a round A method of manufacturing a steel structure by joining a steel pipe or a steel column of H-shaped steel by welding in a construction site,
As the solid steel material, a fitting hole that can be fitted to the outside of the upper end portion of one of the steel pipe piles and a through hole having an inner diameter larger than the outer diameter of the upper end portion of the other steel pipe pile. Preparing one solid steel material and the other solid steel material having,
One solid steel material is fitted to the upper ends of the plurality of steel pipe piles cut at a predetermined height after standing on the ground, while the fitting hole is fitted to the outside of the upper end of one steel pipe pile, A step of penetrating each through hole outside the upper end portion of each other steel pipe pile and projecting the upper end of each other steel pipe pile above the upper end of one solid steel material; and
The other solid steel material is fitted into the fitting hole on the outer side of the upper end portion of one of the other steel pipe piles, while the through holes are formed on the upper side of the other steel pipe piles. And placing it on the upper side of one solid steel material,
Fixing one solid steel material and one steel pipe pile by welding and fixing the other solid steel material and one of the steel pipe piles by welding;
Fixing one solid steel material and the other solid steel material by welding;
Fixing the steel column and the other solid steel material by welding;
It is characterized by having .

According to a fourth aspect of the present invention, there is provided a steel structure having a plurality of steel pipe piles that are cut at a predetermined height after standing on the ground through a solid steel material by rolling, forging or casting, a square steel pipe, a round A method of manufacturing a steel structure by joining a steel pipe or a steel column of H-shaped steel by welding in a construction site,
As the solid steel material, a fitting hole that can be fitted to the outside of the upper end portion of one of the steel pipe piles and a through hole having an inner diameter larger than the outer diameter of the upper end portion of the other steel pipe pile. Preparing one solid steel material having the other solid steel material that can be fitted to the outside of the upper end portion of one of the other steel pipe piles;
After standing a plurality of the steel pipe piles on the ground, cutting the height of the upper end of one of the steel pipe piles to be lower than the height of the upper ends of the other steel pipe piles;
One solid steel material is fitted to the upper ends of the plurality of steel pipe piles cut after standing on the ground, and the fitting hole is fitted to the outer side of the upper end of one steel pipe pile, and the upper ends of the steel pipe piles are While being positioned below the lower end of one solid steel material, the respective through holes are made to pass outside the upper end portions of the other steel pipe piles, and the upper ends of the other steel pipe piles are made higher than the upper ends of the one solid steel materials. And a step of projecting upward,
Placing the other solid steel material on the upper side of one solid steel material by fitting the fitting hole to the outside of the upper end portion of one of the other steel pipe piles;
Fixing one solid steel material and one steel pipe pile by welding and fixing the other solid steel material and one of the steel pipe piles by welding;
Fixing one solid steel material and the other solid steel material by welding;
Fixing the steel column and the other solid steel material by welding;
It is characterized by having.

The invention according to claim 5 is the invention according to any one of claims 2 to 4,
When fixing the second solid steel material, one solid steel material or the other solid steel material and the steel pipe by welding,
Fillet weld the inner peripheral surface of the second solid steel material and the upper end of the steel pipe pile, or the fitting hole of one solid steel material or the fitting hole of the other solid steel material and the steel pipe Fillet weld the upper end of the pile, or the upper end surface of the steel pipe pile and the steel pipe with the upper end located below the inner peripheral surface of the second solid steel material and the upper end of the inner peripheral surface An annular groove formed by the outer peripheral surface of the steel plate that is fitted inside the upper end of the pile and is located above the upper end of the steel pipe pile is welded, or the fitting hole of one solid steel material Or it fits into the inner peripheral surface of the fitting hole of the other solid steel material and the upper end of the steel pipe pile whose upper end is located below the upper end of the inner peripheral surface and the inner side of the upper end portion of the steel pipe pile. Welding the annular groove formed by the outer peripheral surface of the steel plate with its upper surface positioned above the upper end of the steel pipe pile. And butterflies.

The invention according to claim 6 is the invention according to claim 2 or claim 3,
When fixing the second solid steel material and the first solid steel material, or one solid steel material and the other solid steel material by welding,
The inner peripheral surface of the through hole of the first solid steel material or the inner peripheral surface of the through hole of the other solid steel material and the upper end of the steel pipe pile are fillet welded.

The invention according to claim 7 is the invention according to any one of claims 1 to 4,
A beam is welded to the solid steel material that is adjacent in the horizontal direction on the ground surface or in the ground.

The invention according to claim 8 is the invention according to claim 6,
An architectural column is raised from the beam.
In this configuration, a beam is welded and joined to the solid steel material adjacent in the horizontal direction, and an architectural steel column such as one or more studs is started up from the middle of the beam.

In the present invention ,
(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 labor are hardly required for the processing. In addition, there is almost no risk of environmental problems due to vibration, noise and dust.
(2) There is no need for concrete placement and curing.
(3) Large footings, foundation beams, and wide foundations are unnecessary, and there is no problem with the cost and curing period, and construction in a narrow area 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 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 constituted by 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.

In the invention according to claim 5, there is further the following effects. That is, with such a configuration, a strong ground supporting force can be obtained even when the ground is weak, and even if the core of the steel column is misaligned, both the foundation pile and the steel column can be detached from the solid steel material. In addition, the joint portion between the foundation pile and the steel column can maintain a high strength by welding the steel materials. That is, a large ground strength is ensured by the large rigidity and strength of the pile column joint and the pile foundation.
In the invention which concerns on Claim 5 , while ensuring the intensity | strength of a pile pillar joint, the magnitude | size and height of the upper surface of this solid steel material can be minimized, and the position adjustment capability of a pile and a pillar can be exhibited to the maximum.

In the invention according to claim 6, there is further the following effects. That is, in the invention according to claim 6, it is possible to start up one or more building columns such as one or more studs from the middle of the beam by welding the beam to the solid steel materials adjacent in the horizontal direction. It is economical because it does not require a special concrete foundation for the studs.

Embodiment 1
Embodiment 1 of the present invention will be described. 6, 9, and 10, a solid steel material made of a hexagonal rolled material, forged material, or cast material having a vertical dimension smaller than the horizontal dimension is sandwiched between a circular steel pipe pile and a square steel pipe column. And (b) shows that the solid steel material 17 is composed of one part, and FIG. 6 (b) shows the solid steel material 17 Each is composed of two solid steel members 17 aligned in the horizontal direction so that the vertical dimension is smaller than the horizontal dimension. 6 (a) and 6 (b), the horizontal dimension of the solid steel material 17 is equal to or greater than the column diameter, that is, usually 100 to 1000 mm, preferably 200 to 500 mm, and the vertical dimension is 16 to 500 mm, preferably 50 to 50 mm. The vertical dimension is smaller than the horizontal dimension in the combination of the horizontal dimension and the vertical dimension. Normally, the column 1 is a square steel pipe, a round steel pipe, and an H-shaped steel, and the steel pipe pile 18 is a round steel pipe pile. As shown in the lower part of FIG. 5, when the steel pipe pile 18 has a support material in a shallow place of the ground, one or more screw blades 19 are attached to the tip of the steel pipe pile 18, although it is not essential. The steel pipe pile 18 is erected in the ground, and the excess length of the upper part is gas cut to a predetermined height, and then groove processing is performed on the steel pipe pile 18 side or the solid steel material 17 side, The solid steel material 17 and the steel pipe pile 18 are joined by welding. After the solid steel material 17 is welded and joined to the top of the steel pipe pile 18, as shown in FIG. 7, when the vertical or horizontal position adjustment is difficult, the backing metal 20 or the short pipe 20 for the steel column 1 is connected to the column 1 and The back metal or short pipe 20 for the column is placed on the inner surface of the lower end of the column 1 and the solid steel material while being loosened without being tack welded to the solid steel material 17 to adjust the height position 41 of the column 1. And by adjusting the horizontal position adjustment 42, the joint groove gap G between the column 1 and the solid steel material 17 is adjusted, and after adjusting the height of the column 1, the column 1, the backing metal 20, and the solid steel material 17 are adjusted. Or the temporary fixing piece 21 is used to fix the column 1 and the solid steel material 17 by temporary welding, and then the joint weld 7 is applied. In addition, the two solid steel materials by rolling, forging, or casting that are aligned in the horizontal direction can be welded to each other at the upper, lower, and side surfaces depending on the strength requirements of the joint. When performing groove processing, it is performed as shown in FIG. 8 as an example, and it is also possible at a construction site, but it is better to carry out in advance at a steel factory. Furthermore, the installation position of the solid steel material 17 is determined by connecting the solid steel material 17 to the steel pipe pile 18 and the column 1 according to the upper cutting position of the steel pipe pile 18, and then in the ground, between the ground and the ground, on the ground surface, or on the ground. Either is possible. The shape of the steel material 17 is not limited to a hexahedron, but may be an octahedron, a sphere, an ellipsoid, or a cylinder. FIG. 9 shows an application of FIG. 6 in which a solid steel material 17 is provided wider than in the case of FIG. 6 and one column 1 is attached to the upper part and one steel pipe pile 18 is attached to the lower part. In this case, even if the core of the column 1 and the core of the steel pipe pile 18 are displaced, the upper column 1 and the lower steel pipe pile 18 are easily attached as a continuous body. FIG. 10 is also an application of FIG. 6, in which a solid steel material 17 is provided wider than in the case of FIG. 6, and one column 1 is attached to the upper part and two steel pipe piles 18 are attached to the lower part. Also in this case, even if the core of the column 1 and the core of the steel pipe pile 18 are displaced, the upper column 1 and the lower steel pipe pile 18 are easily attached as a continuous pair.

Embodiment 2
A second embodiment of the present invention will be described. FIG. 11 shows a polygon, an ellipse, or a circle such as a square or a hexagon on the hole of a solid steel material 17 made of one rolled steel plate, cast steel, or forged steel with two holes in the vertical direction. A ring-shaped rolled steel plate, cast steel material, and solid steel material 17A made of forged steel material, each of which is mounted in total 2 sheets, through the central hole 17H of the solid steel material 17 and the central opening of the two solid steel materials 17A Sectional drawing of the structure at the time of inserting two foundation pile upper ends, respectively, welding each other, and also welding the solid steel materials 17 and 17A 7 is shown. In other words , two or more thick rolled steel plates, cast steel materials, or forged steel materials are each stacked with holes having different inner diameters, and two or more foundation pile upper ends are inserted into the smaller holes, respectively. welding 7 is a cross-sectional view of a further two rolled steel, cast steel, welded 7 real steel 17 a, 17 in the forged steel material.
In this case, the number of steel pipe piles is two, but when the vertical support force or bending moment cannot be obtained with one steel pipe pile, the number of steel pipe piles is plural. If the inner diameter of the through hole of the solid steel plate 17 is made larger, the misalignment of the steel pipe pile 18 can be dealt with. The adjustment of the misalignment of the steel pipe pile is increased by the amount that the hole diameters of the solid steel materials 17 and 17A are larger than the steel pipe pile 18.

Embodiment 3
Embodiment 3 of the present invention will be described. Figure 12 is a rolled steel plate, cast steel with a hole 17H, on the solid steel 17 in a forged steel member, another hole 17J of the open contour or square-hexagonal circular rolling steel, cast steel, or A solid steel material 17A made of forged steel is placed on top of each other, and the openings 17H and 17J of the respective solid steel plates are combined, and one steel pipe pile 18 is inserted into a hole 17H in the lower solid steel material 17 The solid steel plate 17 and the steel pipe pile 18 are welded and joined to each other, and the other steel pipe pile is inserted through the hole 17H of the lower solid steel material 17 into the hole 17J of the upper solid steel material 17A. Sectional drawing of the structure in the case of welding and joining the steel plate 17A and the steel pipe pile 18 is shown. By displacing two different solid steel plates 17 and 17A, which are joined to each other and stacked one above the other in the horizontal direction, the steel pipe piles can be independently adjusted in core position. .

Embodiment 4
Embodiment 4 of the present invention will be described. FIG. 13 is the same as FIG. 12 except for drilling, but the upper solid steel material 17A is not perforated at the steel pipe pile position attached to the hole 17H of the lower solid steel material 17. This is a case where the steel pipe pile 18 is welded and joined to the lower solid steel material 17 and then the upper solid steel material 17A is attached and another steel pipe pile is welded to the hole portion of the solid steel material 17A.

Embodiment 5
Embodiment 5 of the present invention will be described. In FIG. 14, the vertical positional relationship between two solid steel materials 17 and 17A is opposite to that in FIG. That is, the center hole position of the ring-shaped solid steel material on two sheets of a solid steel material 17A made of a ring-shaped rolled steel plate, a cast steel material, or a forged steel material having a square, hexagonal or circular outer shape with a hole in the center. A solid steel material 17 with a through-hole aligned in the core position is placed on it, and the top ends of two steel pipe piles are inserted into the central opening of the solid steel material 17A, respectively, and fillet welding or butt welding each other. Further, a cross-sectional view of the structure when the solid steel materials 17 and 17A are joined by fillet welding 7F in the hole of the solid steel material 17 is shown. In this case, the upper end of the steel pipe pile is joined by slot welding 7S between the inner diameter of the solid steel material 17A and the disk 45 placed on the inner surface of the steel pipe pile top end and the steel pipe pile top end. In this case, since the solid steel material 17A is welded and joined to the steel pipe pile 18 first, and then the solid steel material 17 is welded and joined 7F, there is an advantage that welding work is easy in a downward posture. Moreover, if the stopper of the solid steel material 17 is attached to the steel pipe pile 18 of the lower side of the solid steel material 17, it will become positioning of the solid steel material 17 and reinforcement of the welding part 17S, and with respect to the vertical load by the steel column 1 Increase yield strength.

Embodiment 6
Embodiment 6 of the present invention will be described. In FIG. 15, two solid steel materials 17A made of a rolled steel plate, cast steel material, or forged steel material having a polygonal or circular shape such as a square or a hexagon or a round shape with a hole in the center are installed. A solid steel material 17 with a through hole whose core position is aligned with the center hole position of the ring-shaped solid steel material 17A is placed on the center opening portion of the solid steel material 17A, and two foundation piles, one each in total. 18 is inserted, and if necessary, a circular steel plate 45 is inserted into the inner diameter of the upper end of the foundation pile 18 to fillet or butt weld each other, and the solid steel members 17 and 17A are inserted into the holes of the solid steel member 17. The cross-sectional view in which the fillet weld 7F is joined and the underground beam or the ground beam 11 is further joined by welding is shown. The beam 11 can be provided at an arbitrary length by extending a lower flange 11F and a web 11W of the beam 11 below the solid steel material 17. As a result of the beam 11 being extended, when it hits the steel pipe pile 18, it can be welded to the steel pipe pile 18, it can be extended avoiding the steel pipe pile 18, and it can be extended avoiding the steel pipe pile 18, It can be provided so as to be located below the upper column 1. The beam 11 is usually made of H-shaped steel, but square steel pipe, round steel pipe, square steel, and round steel can be used. Further, in the present embodiment, two solid steel materials 17A are installed, and two foundation pile upper ends are inserted into the central opening of the solid steel material 17A, respectively, and fillet welding or butting is performed on each other. Welding, and then aligning the core position with the center hole position of the ring-shaped solid steel material 17A on the two solid steel materials 17 with through-holes to which the underground beam or the ground beam 11 is welded and joined It is also possible to join the inner diameter of the solid steel material 17 and the solid steel material 17A with the fillet weld 7F in the hole.

Embodiment 7
Embodiment 7 of the present invention will be described. In FIG. 16, two solid steel materials 17A made of rolled steel, cast steel, or forged steel with a square outer perforation are installed, and two foundations are provided, one in each of the central openings of the solid steel materials 17A. The pile upper end is inserted and the solid steel material 17A and the foundation pile upper end are fillet welded or butt welded to each other. Solid steel material 17 without through-holes is placed at the hole position, and further, fillet weld 7F is joined to 17 on the side surface of solid steel material 17A, and two underground beams or surface beam 11 are welded in a perpendicular direction. A top view is shown. One of the underground beams 11 is joined to an end portion of the solid steel material 17, and the other is passed through the lower side of the upper column 1 from the end portion of the solid steel material 17 and the other end of the solid steel material 17. It is extended to the part. The steel column is attached to the upper surface of the solid steel material 17 by welding at approximately the center position between the two underground beams.

Embodiment 8
Embodiment 8 of the present invention will be described. In FIG. 17, three solid steel materials 17A made of a ring-shaped rolled steel plate, cast steel material, or forged steel material having a polygonal, elliptical, or circular shape with a hole in the center are installed on the three pieces, A solid steel material 17 with a through-hole whose core position is aligned with the center hole position of the ring-shaped solid steel material 17A is placed, and a total of three foundation piles, one in each of the central openings of the solid steel materials 17 and 17A. Fillet welding or butt welding each other with the upper end inserted, and the inner diameter of the hole of the solid steel material 17 and the solid steel material 17A are joined in the fillet weld 7F in the hole, and the underground beam or the ground beam 11 is further welded. The top view joined is shown. The beam 11 can be provided at an arbitrary length by extending a lower flange 11F and a web 11W of the beam 11 below the solid steel material 17. In FIG. 17, two beams 11 are extended under the solid steel material 17 and welded together in a T-shape. The beam 11 is usually made of H-shaped steel, but square steel pipe, round steel pipe, square steel, and round steel can be used.

Embodiment 9
Embodiment 9 of the present invention will be described. FIG. 18 is a longitudinal sectional view of an embodiment in which a beam 11 installed on the ground surface or in the ground is welded to the solid steel material 17 adjacent in the horizontal direction and a steel column 29 is raised from the beam 11. Show. In FIG. 18, two steel pipe piles 18 are penetrated into the ground and a hole is formed in the center at each of the upper ends of the steel pipe piles 18. The steel plate pile 18 is fitted into the hole of the solid steel material 17A made of forged steel, and the circular steel plate 45 is fitted to the inner diameter of the upper end of the steel pipe pile 18, so that the inner diameter of the hole of the solid steel material 17A and the top of the steel pipe pile 18 are After the end face and the outer diameter of the circular steel plate 45 are fillet welded or butt welded to form a groove weld, the solid steel material 17A, the steel pipe pile 18 and the circular steel plate 45 are joined together, and then the underground beam Alternatively, two solid steel members 17 with through-holes connected to each other by welding with the ground beam 11 are placed on the two solid steel members 17A, respectively, at the center hole position of the ring-shaped solid steel member 17A. Place the same position and place the inner diameter of the solid steel material 17 and the solid steel material 17A in the hole. Joining fillet weld 7F. Thereafter, the steel pipe column 29 is joined at an arbitrary position of the upper flange of the beam 11. Further, a cross-sectional view in which solid steel materials 17 and 17A are joined by fillet welding 7F in a hole and an underground beam or a ground beam 11 is further joined by welding.

Embodiment 10
From FIG. 6 to FIG. 19, the installation order of the steel pipe piles, solid steel materials, columns, and studs can be changed.

Embodiment 11
An eleventh embodiment of the present invention will be described. FIG. 19 shows a steel structure characterized in that the solid steel material 17 and the beam 11 installed in the ground are covered with cement mortar / concrete or reinforced concrete 48 with respect to the ninth embodiment of FIG. An example of the method is shown in the cross-sectional view. After placing the steel pipe pile 18, the ground 9 is excavated and the solid steel materials 17 and 17A and the beam 11 are installed and covered with cement mortar / concrete or reinforced concrete 48. This is because it helps to prevent corrosion and supplement the strength of these materials. In the present embodiment, the underground beam 11 and the solid steel material 17 usually enter the ground together with the interstitial concrete slab. However, when the groundwater level is low, only the solid steel material 17 and a part of the beam 11 are used. It can also be buried in the ground or covered with cement mortar, concrete or reinforced concrete 48.

Embodiment 12
A twelfth embodiment of the present invention will be described. 20 and 21, a horizontal steel plate or a spiral steel plate 44 is attached to the underground buried portion of the steel pipe pile 18 by mechanical or welding joining, and the steel plate portion 44 is attached to the upper side and lower side of the foundation surface plate or the fabric foundation 10. The method of manufacturing the steel structure characterized by providing in the side, the inside, or several places which combined these is shown. FIG. 20 shows a case where a single steel plate portion 44 is installed inside the base surface plate or the fabric base 10. FIG. 21 shows a case where the foundation surface plate or the fabric foundation 10 is provided at a plurality of locations on the upper side, lower side, and inside. This embodiment can obtain a stronger bond between the steel pipe pile and the foundation than in the conventional case where the foundation is provided on the pile head. Further, in the present embodiment , the foundation surface plate 10 is formed after a hole is made at a position where the existing foundation is piled and a steel pipe pile 18 and the steel plate portion 44 are installed in the hole. Can also be rebuilt. In this way, it is useful for effective use of the foundation surface plate, reduction of waste such as earth and sand and concrete, and shortening of the foundation work.

Embodiment 13
A thirteenth embodiment of the present invention will be described. In FIG. 22, about the case of FIG. 12, the 1st floor part of the square steel pipe, the round steel pipe, or the H-steel building steel pillar 1 is divided into an upper part and a lower part, and a length of about 500 to 2000 mm is desired. From the viewpoint of welding workability, the lower end of the lower part of the architectural steel column 1 having a length of about 800 to 1,200 mm is welded 7 to the upper surface of the solid steel material, and then the upper end of the lower part of the architectural steel column 1 is obtained. A method of manufacturing a steel structure by welding the upper column 1A to 7C is shown in a sectional view. If this method is used, the floor construction of the first floor portion of the building can be performed before the construction of the steel frame body, and the construction period can be shortened.

Embodiment 14
Embodiment 14 of the present invention will be described. FIG. 23 shows an embodiment of the present invention when there is no steel pipe pile. That is, when the surface layer of the ground is weak and relatively shallow, for example, when there is sufficient foundation strength at a depth of 0 to 5 m, the ground is excavated and the concrete foundation surface plate / clothing foundation 10 or discarded concrete 10A is laid. After that, on the ground of the excavated place, a steel structure in which an underground beam 28 made of H-shaped steel or square steel pipe is attached to a dice or solid steel material 17 is installed, and then an H-shaped steel column or square A method of welding the steel pipe column 1 to a dice or solid steel material 17 by welding is shown in a sectional view. In this case, as shown in the solid steel material 17 on the left side of FIG. 23, when the solid steel material 1 has a thickness smaller than that of the beam, the lower flange and the web of the underground beam 28 are attached to the solid steel material 17. A stiffener 46 for reinforcement is attached by welding between the lower side of the solid steel material 17 and the lower flange of the underground beam.

Embodiment 15
A fifteenth embodiment of the present invention will be described. FIG. 24 shows an embodiment of the present invention in the case where there is no steel pipe pile as in FIG. That is, when the surface layer of the ground is weak and has a sufficient foundation strength in a relatively shallow place, the ground is excavated and the ground of the excavated place is irrelevant regardless of whether the concrete foundation surface plate 10 or the discarded concrete 10A is laid. On top of this, after laying unreinforced concrete, i.e., laple concrete 49, a steel structure in which an underground beam 28 made of H-shaped steel or square steel pipe is attached to the dice or solid steel material 17 is installed on the lapple concrete 49. Next, a method of welding the H-shaped steel column or the square steel pipe column 1 to the dice or the solid steel material 17 will be described. The wrinkle concrete 49 exhibits the same effect as a strong support ground, and works to increase the support height level of the support ground. In the present embodiment, the wrinkle concrete 49 is disposed under the solid steel material 17, but the wrinkle concrete 49 may be disposed at any horizontal position of the underground beam 28. FIG. 23 and FIG. 24 show that when the ground support layer 49 is shallow from the ground surface, without using steel pipe piles, a single unit placed horizontally on the ground or on the ground with abandoned concrete. Alternatively, a solid steel material 17 made of a plurality of rolled, forged or cast materials that are superposed in the vertical direction and welded to each other is placed, and on the solid steel material 17, a square steel pipe, a round steel pipe, or H The method of joining the lower end of a structural steel column made of section steel by welding in a construction site is shown. This method is a method of using an independent foundation or a cloth foundation, and using solid steel material or rapple concrete instead of a concrete surface plate or foundation.

Embodiment 16
A sixteenth embodiment of the present invention will be described. FIG. 25, FIG. 26 and FIG. 27 show a plurality of rolled materials, forged materials or cast materials that are smaller in the vertical dimension than the horizontal dimension and are welded and joined to each other in the vertical direction. 25 is an embodiment in which the upper ends of one or a plurality of building foundation steel pipe piles 18 cut at a predetermined height after standing on the ground are joined by welding in a construction site. Top view of the pile 18 and the upper column 1 when they are not in the same position in plan view, with an H-shaped steel underground beam placed on the upper part of the solid steel material 17 with one steel pipe pile connected to the lower part and welded FIG. 26 is an example of (a) and a cross-sectional view (b), and FIG. 26 shows a case in which two steel pipe piles are connected to the lower part when the pile 18 and the upper pillar 1 are not in the same position in plan view. An example of a top view (b) and a cross-sectional view (b) in which an H-shaped steel underground beam is placed on the upper part of the actual steel material 17 and welded. FIG. 27 shows a solid structure in which two steel pipe piles are connected to the lower part when the pile 18 and the upper pillar 1 are not in the same position in plan view but also deviated from the core of the underground beam 28. It is an example of a top view (I) and a cross-sectional view (B) in which an H-shaped steel underground beam is placed on the upper center of the steel material 17 and welded. 25 and 27, the solid steel material 17 connected to the lower part of the steel column 1 is different from the solid steel material 17 connected to the steel pipe pile 18, and the two series are combined. .

Embodiment 17
Embodiment 17 of the present invention will be described. FIG. 28 shows that the steel column 1 is erected by installing the solid steel material 17 at the bottom of the excavation groove 9B excavated to the support layer in the ground 9 having the support layer at a relatively shallow depth L = 0 to 5 m. FIG. Thus, if it constructs, the solid steel plate 17 of a big diameter will be needed in order to stabilize even if it raises the pillar 1 by the steel frame construction method. As shown in FIG. 29, a cylindrical or polygonal steel container 50 is manufactured, and the solid steel material 17 and the steel column 1 are installed in the cylindrical or polygonal steel container. As shown in 31, the solid steel plate 17 is preliminarily excavated to the ground 9A having a support layer at a shallow depth of L = 0 to 5 m and laid with abandoned concrete as needed at the bottom. 1 and the lower part of the first floor of the steel column 1 are welded and placed in the cylindrical or polygonal steel container 50 and fixed by welding or the like, and integrated with each other and excavated. A method of stably building the upper steel column 1 by installing the concrete 48 in the container 50 and increasing the weight of the container 50 after being installed at the bottom of the ground is shown in a sectional view. As shown in FIG. 29, the height of the lower part of the first floor of the steel column 1 and the cylindrical or polygonal steel container 50 is measured at the cutting position 51 according to need by measuring the steel frame level. Cut the and adjust the height. The bottom plate of the cylindrical or polygonal steel container 50 is replaced with a solid steel material 17, and the steel container 50 is replaced with a side plate of the cylindrical or polygonal steel container 50 and the solid steel material 17. It is also possible to configure.

It is an example of the conventional architectural steel structure diagram . It is a perspective view of a building steel beam-to-column connection part, that is, a joint part using a conventional square steel pipe column . It is a perspective view of the appearance of a column beam joint using an integrated construction method . It is a steel-frame building schematic diagram built on the conventional independent foundation . It is a schematic diagram of the pile pillar integrated type which improved the conventional foundation . It is a partial cross-sectional view in which a hexagonal steel solid steel material is sandwiched between a circular steel pipe pile with screw blades and a square steel pipe column, and (a) is a solid piece (B) is a diagram of using two solid steel materials . It is explanatory drawing (sectional drawing) which adjusts the height of this pillar using a loose backing metal by adjustment of joint groove gap G of a square steel pipe pillar and hexagonal steel solid steel material . It is sectional drawing which joined this steel pipe pile and this pillar on both sides of the steel solid steel material which carried out the groove processing at the lower end of a hexahedron between a circular steel pipe pile and a square steel pipe pillar, (B) is a diagram of using two solid steel materials . It is sectional drawing which joined one steel pipe pile and this pillar on both sides of steel solid steel materials between a circular steel pipe pile and a square steel pipe pillar. It is sectional drawing which joined two steel pipe piles and this pillar on both sides of steel solid steel materials between a circular steel pipe pile and a square steel pipe pillar. Two solid steel members 17A are placed on each of the holes of one solid steel member 17 having two holes in the vertical direction, and the two pieces are passed through the central hole 17H of the solid steel member 17. It is sectional drawing of a structure at the time of inserting the two foundation pile upper ends in the center opening part of the solid steel material 17A, welding each other, and also welding the solid steel materials 17 and 17A further . Place a solid steel material with another hole on top of the solid steel material with a hole on it, insert one steel pipe pile into the hole in the lower solid steel material, Sectional view of the structure when a steel pipe pile is welded and another steel pipe pile is inserted into the hole of the upper solid steel through the hole of the lower solid steel and the solid steel plate and the steel pipe pile are welded It is . FIG. 13 is a cross-sectional view showing the case where no hole is formed in the upper solid steel material in the case of FIG. 12. FIG. 12 is a cross-sectional view in which the vertical positional relationship between two solid steel materials is opposite to that in FIG. 11. It is sectional drawing which attached the underground beam to the solid steel material . It is the top view which attached the underground beam to the solid steel material . It is the top view which attached the underground beam to the solid steel material . It is sectional drawing which attaches an underground beam to a solid steel material and builds a steel column from an underground beam . It is sectional drawing which fills an excavation part with a mortar, concrete, etc. with an underground beam attached to a solid steel material . It is sectional drawing which installs the horizontal wing | blade etc. which were fixed to the steel pipe pile in the foundation bottom board . It is sectional drawing which installs the horizontal wing | blade etc. which were fixed to the steel pipe pile in the center of the foundation bottom . It is welding of the upper part of the zero column of the 1st floor steel column built on the solid steel plate . It is a cross-sectional view in which there is a ground supporting force at a relatively shallow place, and the underground beam is installed without the steel pipe pile . It is a cross-sectional view where there is a supporting force for the ground in a relatively shallow place, and steel pipe piles are eliminated and lap concrete and underground beams are installed . In Figure pile upper Columns 1 Column 1 pile is one of the steel pipe pile at the top of the middle actual steel obtained by connecting the bottom is welded by placing the H-shaped steel underground beams if not the same position in plan view is there. In Figure pile upper column 1 at 1 Poster 2 piles has the two steel pipe piles were welded by placing a H-shaped steel underground beam on top of the real steel in which lead to lower if not the same position in plan view is there. When the pile and the upper column are not in the same position in plan view but are shifted from the core of the underground beam in one pillar and two piles, the H-section steel is in the upper center of the solid steel material with two steel pipe piles connected to the lower part. It is the figure which put the underground beam and was joined by welding . FIG. 3 is a cross-sectional view of a steel column 1 erected by installing a solid steel material at the bottom of an excavation groove excavated to the support layer in a ground having a support layer in a relatively shallow place . It is sectional drawing which manufactured the cylindrical or polygonal steel container, and installed the solid steel material 17 and the steel column 1 in this cylindrical or polygonal steel container . It is sectional drawing which installed the solid steel material in the steel container in the bottom part of the excavation groove excavated to the support layer, and stood the steel column 1 in the ground which has a support layer in a comparatively shallow place . In a ground with a support layer in a relatively shallow place, a solid steel material is installed in a steel container at the bottom of the excavation groove drilled to the support layer, and a steel column 1 is installed, and an underground beam is installed. FIG .

1 Building Steel Column 1A Building Steel 1st Floor Upper Column 1B Building Steel 1st Floor Lower Column 2 Building Steel Beam 3 Building Steel Beam Joint 4 Steel Building Foundation 5 Diaphragm 6 Column Short Tube 7 Weld or Weld 7B Butt Weld 7F Meat welded portion 7S Slot welded 7C Welding between first-floor columns 8 Foundation column or foundation pile 9 Ground 9A Supporting ground 9B Excavated portion 10 Concrete surface plate or foundation 10A Abandoned 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 17H Through hole 17J Another through hole 18 Steel pipe pile 19 Screw blade 20 Loose Back metal or loose short tube 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 lyre concrete 49 Wrap concrete 50 Cylindrical or polygonal 51 cutting position or height

Claims (8)

In building steel structures, a plurality of steel pipe piles that are cut at a predetermined height after standing on the ground with a solid steel material by rolling, forging or casting, and a steel pipe of square steel pipe, round steel pipe or H-shaped steel A method of manufacturing a steel structure by joining a pillar to a construction site by welding,
As the solid steel material, a first solid steel material having a plurality of through holes having an inner diameter larger than the outer diameter of the upper end portion of each steel pipe pile, and a plurality of pieces that can be fitted to the outside of the upper end portion of each steel pipe pile. Preparing a ring-shaped second solid steel material;
A step of disposing the first solid steel material by penetrating the through holes to the outside of the steel pipe piles at the upper ends of the steel pipe piles cut at a predetermined height after standing on the ground; and
Fitting each second solid steel material to the outside of the upper end of each steel pipe pile and placing it on the upper side of the first solid steel material;
Fixing each second solid steel material and each steel pipe pile by welding;
Fixing each second solid steel material and the first solid steel material by welding;
Fixing the steel column and the first solid steel material by welding;
A method of manufacturing a steel structure characterized by comprising: In building steel structures, a plurality of steel pipe piles that are cut at a predetermined height after standing on the ground with a solid steel material by rolling, forging or casting, and a steel pipe of square steel pipe, round steel pipe or H-shaped steel A method of manufacturing a steel structure by joining a pillar to a construction site by welding,
As the solid steel material, a first solid steel material having a plurality of through holes having an inner diameter larger than the outer diameter of the upper end portion of each steel pipe pile, and a plurality of pieces that can be fitted to the outside of the upper end portion of each steel pipe pile. Preparing a ring-shaped second solid steel material;
A step of fitting each second solid steel material to the outer side of the upper end of each of the steel pipe piles at the upper end of the plurality of steel pipe piles cut at a predetermined height after standing on the ground; and
Placing the first solid steel material on the upper side of each steel pipe pile with the respective through holes positioned on the upper side of each second steel pipe pile;
Fixing each second solid steel material and each steel pipe pile by welding;
Fixing each second solid steel material and the first solid steel material by welding;
Fixing the steel column and the first solid steel material by welding;
A method of manufacturing a steel structure characterized by comprising: In building steel structures, a plurality of steel pipe piles that are cut at a predetermined height after standing on the ground with a solid steel material by rolling, forging or casting, and a steel pipe of square steel pipe, round steel pipe or H-shaped steel A method of manufacturing a steel structure by joining a pillar to a construction site by welding,
As the solid steel material, a fitting hole that can be fitted to the outside of the upper end portion of one of the steel pipe piles and a through hole having an inner diameter larger than the outer diameter of the upper end portion of the other steel pipe pile. Preparing one solid steel material and the other solid steel material having,
One solid steel material is fitted to the upper ends of the plurality of steel pipe piles cut at a predetermined height after standing on the ground, while the fitting hole is fitted to the outside of the upper end of one steel pipe pile, A step of penetrating each through hole outside the upper end portion of each other steel pipe pile and projecting the upper end of each other steel pipe pile above the upper end of one solid steel material; and
The other solid steel material is fitted into the fitting hole on the outer side of the upper end portion of one of the other steel pipe piles, while the through holes are formed on the upper side of the other steel pipe piles. And placing it on the upper side of one solid steel material,
Fixing one solid steel material and one steel pipe pile by welding and fixing the other solid steel material and one of the steel pipe piles by welding;
Fixing one solid steel material and the other solid steel material by welding;
Fixing the steel column and the other solid steel material by welding;
A method of manufacturing a steel structure characterized by comprising: In building steel structures, a plurality of steel pipe piles that are cut at a predetermined height after standing on the ground with a solid steel material by rolling, forging or casting, and a steel pipe of square steel pipe, round steel pipe or H-shaped steel A method of manufacturing a steel structure by joining a pillar to a construction site by welding,
As the solid steel material, a fitting hole that can be fitted to the outside of the upper end portion of one of the steel pipe piles and a through hole having an inner diameter larger than the outer diameter of the upper end portion of the other steel pipe pile. Preparing one solid steel material having the other solid steel material that can be fitted to the outside of the upper end portion of one of the other steel pipe piles;
After standing a plurality of the steel pipe piles on the ground, cutting the height of the upper end of one of the steel pipe piles to be lower than the height of the upper ends of the other steel pipe piles;
One solid steel material is fitted to the upper ends of the plurality of steel pipe piles cut after standing on the ground, and the fitting hole is fitted to the outer side of the upper end of one steel pipe pile, and the upper ends of the steel pipe piles are While being positioned below the lower end of one solid steel material, the respective through holes are made to pass outside the upper end portions of the other steel pipe piles, and the upper ends of the other steel pipe piles are made higher than the upper ends of the one solid steel materials. And a step of projecting upward,
Placing the other solid steel material on the upper side of one solid steel material by fitting the fitting hole to the outside of the upper end portion of one of the other steel pipe piles;
Fixing one solid steel material and one steel pipe pile by welding and fixing the other solid steel material and one of the steel pipe piles by welding;
Fixing one solid steel material and the other solid steel material by welding;
Fixing the steel column and the other solid steel material by welding;
A method of manufacturing a steel structure characterized by comprising: In the invention according to any one of claims 2 to 4,
  When fixing the second solid steel material, one solid steel material or the other solid steel material and the steel pipe by welding,
Fillet weld the inner peripheral surface of the second solid steel material and the upper end of the steel pipe pile, or the fitting hole of one solid steel material or the fitting hole of the other solid steel material and the steel pipe Fillet weld the upper end of the pile, or the upper end surface of the steel pipe pile and the steel pipe with the upper end located below the inner peripheral surface of the second solid steel material and the upper end of the inner peripheral surface An annular groove formed by the outer peripheral surface of the steel plate that is fitted inside the upper end of the pile and is located above the upper end of the steel pipe pile is welded, or the fitting hole of one solid steel material Or it fits into the inner peripheral surface of the fitting hole of the other solid steel material and the upper end of the steel pipe pile whose upper end is located below the upper end of the inner peripheral surface and the inner side of the upper end portion of the steel pipe pile. Welding the annular groove formed by the outer peripheral surface of the steel plate with its upper surface positioned above the upper end of the steel pipe pile. Method of fabricating a steel structure to be butterflies. In the invention according to claim 2 or claim 3,
When fixing the second solid steel material and the first solid steel material, or one solid steel material and the other solid steel material by welding,
A steel structure characterized by fillet welding the inner peripheral surface of the through hole of the first solid steel material or the inner peripheral surface of the through hole of the other solid steel material and the upper end of the steel pipe pile. How to make. In the invention according to any one of claims 1 to 6,
A method of manufacturing a steel structure characterized by welding a beam to the solid steel material adjacent in the horizontal direction on the ground surface or in the ground. In the invention of claim 7,
A method of manufacturing a steel structure, wherein a building column is raised from the beam.

Images