WO2016132648A1 - Mécanisme de joint et procédé de liaison pour tuyau en acier - Google Patents

Mécanisme de joint et procédé de liaison pour tuyau en acier Download PDF

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Publication number
WO2016132648A1
WO2016132648A1 PCT/JP2015/085888 JP2015085888W WO2016132648A1 WO 2016132648 A1 WO2016132648 A1 WO 2016132648A1 JP 2015085888 W JP2015085888 W JP 2015085888W WO 2016132648 A1 WO2016132648 A1 WO 2016132648A1
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WO
WIPO (PCT)
Prior art keywords
joint
inner joint
notch
steel pipe
unit member
Prior art date
Application number
PCT/JP2015/085888
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English (en)
Japanese (ja)
Inventor
鈴木友之
菊池俊介
外山征
永島健
山本浩之
Original Assignee
株式会社クボタ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社クボタ filed Critical 株式会社クボタ
Priority to US15/302,056 priority Critical patent/US20180119380A1/en
Priority to SG11201608073UA priority patent/SG11201608073UA/en
Priority to KR1020167028611A priority patent/KR20170124436A/ko
Priority claimed from JP2015250212A external-priority patent/JP6594193B2/ja
Publication of WO2016132648A1 publication Critical patent/WO2016132648A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles

Definitions

  • the present invention relates to a steel pipe joint mechanism and a connection method.
  • Steel pipe piles are used as an example of steel pipes to form foundation piles for structure installation, earth retaining sheet piles, landslide deterrent piles, and pier columns.
  • Long steel pipe piles are required to reach the support layer, which is the hard ground under the soft ground.
  • a pile is carried into the site, and a plurality of steel pipe piles are connected to each other at the site to form a predetermined length.
  • Patent Document 1 As a mechanism for connecting steel pipe piles as described above, a mechanical joint mechanism is proposed in Patent Document 1.
  • the joint mechanism is formed so that the inward circumferential groove of the outer fitting member and the outer circumferential groove of the inner fitting member have the same groove width, and the outer fitting member and the inner fitting member are fitted to each other.
  • the inward circumferential groove and the outward circumferential groove are opposed to each other, and a key member previously built in the inward circumferential groove is extruded toward the outward circumferential groove, so that it extends over the inward circumferential groove and the outward circumferential groove.
  • the present invention has been made in view of the above circumstances, and aims to simplify the configuration for connecting a pair of steel pipes and reduce the cost.
  • the first characteristic configuration of the joint mechanism according to the present invention is a steel pipe joint mechanism, a first inner joint provided at one end of the steel pipe, a second inner joint provided at the other end, and a pair of the above
  • the first inner joint of one of the steel pipes and the second inner joint of the other steel pipe are adjacent to each other, straddling the first inner joint and the second inner joint.
  • An outer joint provided around the outer joint, and an outer periphery of each of the first inner joint and the second inner joint and an inner periphery of the outer joint are provided with an engaging portion, and the other An engaged portion for preventing the pair of steel pipes from relatively moving in the longitudinal direction of the steel pipe by the engagement of the engaging portions
  • the outer joint includes the first inner joint and From a plurality of unit members arranged around the second inner joint
  • the plurality of unit members are configured to include standard unit members each having an engaging convex portion at an end portion on the first inner joint side and an end portion on the second inner joint side, and
  • the inner joint and the second inner joint are each provided with an engagement recess that engages with the engagement protrusion and prevents the standard unit member from falling off. At least a part is that a cutout portion through which the engagement convex portion of the standard unit member can be inserted to a position corresponding to the engagement concave portion is provided.
  • a first inner joint provided at one end of one steel pipe and a second inner joint provided at the other end of the other steel pipe are adjacent to each other and straddled between the first inner joint and the second inner joint.
  • a predetermined position of the first inner joint and the second inner joint by sliding a mating convex portion in the circumferential direction of the steel pipe along an engagement concave portion provided in the first inner joint and the second inner joint. Placed in. Since the outer joint is made up of a plurality of unit members that are large enough to be lifted by a worker by hand, for example, lifting work by a machine such as a crane becomes unnecessary. Will improve. Therefore, as in a conventional joint mechanism, for example, a key portion as an engaging portion is previously incorporated in, for example, an outer key groove as an engaged portion, and is provided with a mechanism for sending it out to an outer circumferential groove. Since it is not necessary, the thickness of the outer joint can be reduced, and the material cost can be reduced. Moreover, since the first inner joint and the second inner joint can be configured in the same shape, the processing cost can be reduced.
  • the plurality of unit members are further configured to include a closing unit member having a shape that is flush with an outer peripheral surface of the periphery of the notch when arranged in the notch. It is in the point provided with the fixing mechanism which fixes a closure unit member to at least the 1st inner joint or the 2nd inner joint.
  • the notch is closed by fixing the closing unit member to the first inner joint and the second inner joint. Further, relative movement in the circumferential direction of the first inner joint and the second inner joint connected via the outer joint is also suppressed.
  • the notch portion includes a first notch portion provided in the first inner joint and a second notch portion provided in the second inner joint, and the first inner joint. And the second inner joint when the first inner joint of the one steel pipe and the second inner joint of the other steel pipe are adjacent to each other in order to connect the pair of steel pipes.
  • a positioning mechanism for positioning the notch and the second notch so as to face each other along the longitudinal direction of the steel pipe is provided.
  • the positioning mechanism can easily position the first notch and the second notch so as to face each other along the longitudinal direction of the steel pipe.
  • the positioning mechanism includes a hole provided on each of the opposing surfaces of the first inner joint and the second inner joint, and a positioning pin inserted through the hole. In the point.
  • the engaged portion is an outward circumferential groove provided on the outer periphery of each of the first inner joint and the second inner joint, and the engaging portion is formed on the outer joint. It is an inward key portion for preventing the pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe by engaging with the outward circumferential groove provided on the inner circumference.
  • the inward key portion and the outward circumferential groove are simply engaged, there is no need to previously incorporate the key member in the inward circumferential groove as in the conventional joint mechanism, so the outer joint Thus, the material cost can be reduced. Moreover, since the first inner joint and the second inner joint can be configured in the same shape, the processing cost can be reduced.
  • the engaging portion is an outward key portion provided on the outer periphery of each of the first inner joint and the second inner joint, and the engaged portion is the outer joint of the outer joint. It is in the point which is an inward circumferential groove for preventing the pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe by engaging the outward key portion provided on the inner circumference.
  • the material cost can be reduced.
  • the first inner joint and the second inner joint can be configured in the same shape, the processing cost can be reduced.
  • the first inner joint and the second inner joint are formed from a straight seam steel pipe, and the joint part of the straight seam steel pipe is the first inner joint and the second inner joint. It exists in the point arrange
  • a straight seam steel pipe is manufactured using a sheet winding method.
  • the plate winding method is less expensive than methods such as ring forging that produce seamless steel pipes.
  • the first inner joint and the second inner joint can be obtained at low cost.
  • straight seam steel pipes have joints along their longitudinal direction, and are not homogeneous in the circumferential direction like seamless steel pipes, so the same rigidity cannot be obtained in the circumferential direction and they are vulnerable to internal pressure and torsion.
  • the circumferential direction part in which the notch part is formed among the 1st inner side joint and the 2nd inner side joint has few materials in the location, compared with other circumferential direction parts, rigidity is low.
  • a notch part is provided in a 1st inner joint and a 2nd inner joint so that it may become a position which is not a position which straddles the junction part which a straight seam steel pipe has.
  • the eighth characteristic configuration is that the outer joint is formed of a straight seam steel pipe, and a joint part of the straight seam steel pipe is disposed on the standard unit member.
  • straight seam steel pipes can be manufactured much cheaper than seamless steel pipes. Therefore, an outer joint can be obtained at low cost by forming the outer joint from a straight seam steel pipe.
  • the closing unit member of the outer joint is disposed in the cutout portion of the first inner joint and the second inner joint. If the joint portion is disposed at a position overlapping with the notch portion, the rigidity is lowered in the notch portion in which the closing unit member having the joint portion is disposed. Therefore, the joint is provided on the standard unit member. By preventing the closing unit member and the joint from overlapping each other along the longitudinal direction of the straight seam steel pipe, it is possible to prevent a part of the joint mechanism from becoming too rigid compared to the other parts.
  • a first characteristic configuration of a connection method is a connection method of connecting a pair of steel pipes using a joint mechanism having any one of the first to seventh characteristic configurations described above, A step of adjoining a first inner joint provided at one end and a second inner joint provided at the other end of the other steel pipe; a first notch provided in the first inner joint; and the second inner joint In positioning the second notch provided in the joint so as to oppose the longitudinal direction of the steel pipe, and in arranging the outer joint across the first inner joint and the second inner joint Among the plurality of unit members constituting the outer joint, the standard unit member provided with the engaging convex portion at the end portion on the first inner joint side and the end portion on the second inner joint side is the first unit member.
  • the first inner joint and the second notch, the first inner joint and The pair of steel pipes are engaged with each other by engaging with an engaging portion provided on either one of the outer periphery of the second inner joint and the inner periphery of the outer joint, and the engaging portion provided on the other. Engaging the engaged portion for preventing relative movement in the longitudinal direction of the steel pipe; and maintaining the engagement between the engaging portion and the engaged portion. Sliding the portion in the circumferential direction of the steel pipe along the engagement recess provided in the first inner joint and the second inner joint, and the notch portion among the plurality of unit members constituting the outer joint.
  • a closing unit member having a shape that is flush with the outer peripheral surface around the notch portion is inserted through the first notch portion and the second notch portion, and the outward circumferential groove and the inward direction are inserted.
  • Engage with the key part, or the outward keyway and the inward circumferential groove A step of engagement, in that it includes the steps of: securing at least the first inner joint and the second inner joint the closure unit member.
  • the first inner joint and the second inner joint are arranged.
  • a closing unit member is disposed in advance in one of the first notch part or the second notch part, and using the closing unit member, the first notch part and the second notch part are disposed.
  • the two notch portions are positioned so as to face each other along the longitudinal direction of the steel pipe, and after the positioning, the step of temporarily removing the closing unit member is provided.
  • FIG. 1 shows an example of a steel pipe pile 1 having a cylindrical outer peripheral surface driven into the ground by a hydraulic hammer, a press-fitting machine, a rotary press-fitting machine, etc., and a pair of steel pipe piles 1 in the longitudinal direction of the steel pipe pile 1. And a joint mechanism for connecting to each other.
  • the steel pipe pile 1 (1A, 1B) is configured by welding a substantially cylindrical inner joint 10 made of cast steel concentrically to both ends of the pipe body 2 (2A, 2B).
  • the inner joint 10 welded to both ends of the pipe body 2 (2A, 2B) has the same configuration, but is attached to each configuration on the inner joint 10 side located below when the steel pipe pile 1 is driven into the ground.
  • a letter A is attached, and a subscript B is added to each component on the inner joint 10 side located on the upper side. That is, one of the pair of inner joints 10A and 10B is the first inner joint, and the other is the second inner joint.
  • an inner fitting portion 12 having an outer diameter smaller than that of the base portion 11 is extended to a base portion 11 having an outer diameter slightly larger than the outer diameter of the tube body 2.
  • the outer diameter of the base 11 is about 18 mm larger than the outer diameter of the tube body 2.
  • a single outward circumferential groove 13 for engaging an inward key portion 23 described later is formed in an annular shape.
  • an engagement concave portion 14 for engaging an engagement convex portion 24 provided at an end portion of the outer joint 20 described later is formed in an annular shape (See FIG. 1).
  • the wall surface constituting the engaging recess 14 is provided with notches 15 at four locations at equal intervals in the circumferential direction in the present embodiment.
  • a hole 18 is formed at a predetermined position on the contact surface.
  • a positioning pin 19 is inserted into the hole 18. As shown in FIG. 3, when connecting the inner joint 10A and the inner joint 10B, the positioning pin 19 is connected to the hole 18A formed in the inner joint 10A and the hole 18B formed in the inner joint 10B. By inserting, the notch 15A provided in the inner joint 10A and the notch 15B provided in the inner joint 10B are positioned at positions facing the longitudinal direction of the steel pipe pile 1.
  • the outer joint 20 includes a cylindrical body made of cast steel having an outer diameter slightly larger than the outer diameter of the tube body 2 and an inner diameter large enough to fit the inner joint 10 in the circumferential direction. It is composed of eight unit members 21 formed by dividing into eight equal parts. In the present embodiment, the outer diameter of the outer joint 20 is about 18 mm larger than the outer diameter of the tube body 2.
  • the unit member 21 can reduce a manufacturing cost compared with the case where it manufactures one by one, for example, by bending an iron plate by using the simple manufacturing method of dividing
  • the inner periphery of the outer joint 20 composed of eight unit members 21 can be engaged with outward circumferential grooves 13 (13A, 13B) provided in the inner joint 10A and the inner joint 10B, respectively.
  • two parallel circular inward key portions 23 (23A, 23B) are in a state in which the outer joint 20 is provided around the inner fitting portion 12 (12A, 12B) of the inner joint 10 (10A, 10B). Are provided at positions that can be engaged with the outward circumferential grooves 13 (13A, 13B).
  • the engagement convex part 24 is formed in the four unit members 21 among the unit members 21 at the upper and lower ends in the figure. These unit members 21 are standard unit members 21A.
  • the standard unit member 21 ⁇ / b> A is engaged with the inward key portion 23 through the notch 15 so as to be engaged with the outward circumferential groove 13 of the inner joint 10, and then is slid along the circumferential direction.
  • the mating convex portion 24 and the engaging concave portion 14 are engaged to prevent the standard unit member 21A from dropping outward.
  • the remaining four unit members 21 have a shape that is flush with the outer peripheral surface of the cutout portion 15 when arranged in the cutout portion 15 instead of having the engagement convex portion 24.
  • These unit members 21 are closed unit members 21B.
  • the closing unit member 21B is not provided with an engagement convex portion 24 that engages with the engagement concave portion 14 of the inner joint 10, but has an opening through which a bolt can be inserted.
  • Bolt holes 16 (16A, 16B) are formed in the first inner joint 20A and the second inner joint 20B at positions corresponding to the openings.
  • the closing unit member 21B can be fixed to the first inner joint 20A and the second inner joint 20B by using bolts 33.
  • four standard unit members 21A and four closed unit members 21B are arranged alternately around the inner joint 10 to form a cylindrical outer joint 20.
  • the above-described joint mechanism is used as a connecting method for connecting the pair of steel pipe piles 1A and 1B.
  • the inner joint 10B provided at the lower end abuts the inner joint 10A provided at the upper end of one steel pipe pile 1A which has been driven in advance.
  • the steel pipe pile 1B is suspended.
  • the positioning pin 19 is inserted in advance into the hole 18A formed in the inner joint 10A, and the steel pipe pile 1B is positioned in the hole 18B formed in the inner joint 10B using a machine such as a crane. Suspend while confirming that 19 is inserted.
  • the inward key portion 23 (23A, 23B) of the standard unit member 21A is cut out of the inner joint 10 (10A, 10B) through the notches 15A, 15B. Circumferentially engages with the circumferential groove 13 (13A, 13B).
  • the standard unit member 21 ⁇ / b> A is slid along the circumferential direction to a position where the engaging convex portion 24 and the engaging concave portion 14 are engaged.
  • the inward key portion 23 (23A, 23B) of the closing unit member 21B is provided outside the inner joint 10 (10A, 10B) through the notches 15A, 15B. Circumferentially engages with the circumferential groove 13 (13A, 13B).
  • a pair of steel pipe piles 1 ⁇ / b> A and 1 ⁇ / b> B are fixed to the steel pipe pile 1 by fixing the closing unit member 21 ⁇ / b> B to the inner joint 10 (10 ⁇ / b> A and 10 ⁇ / b> B) using a bolt 33. It can be connected so that it does not move relative to the longitudinal direction and does not move relative to the circumferential direction.
  • the outward circumferential groove 13 as the engaged portion is formed on the outer periphery of each of the inner joint 10A and the inner joint 10B.
  • the outward key provided on the outer periphery of each of the inner joint 10A and the inner joint 10B is relative to each other in the longitudinal direction of the steel pipe pile 1 by the engagement of the outward key portion provided on the inner periphery of the outer joint 20. It may be an inward circumferential groove for preventing movement.
  • the inner joint 10A and the inner joint 10B are each formed with a hole 18 at a predetermined position on the contact surface, and the positioning pin 19 is inserted into the hole 18.
  • the possible configurations have been described. However, it is not limited to such an embodiment.
  • the opposing surfaces of the inner joint 10A and the inner joint 10B may be provided with convex portions and concave portions that fit together in the circumferential direction.
  • the opposing surfaces of the inner joint 10A and the inner joint 10B are provided with a small diameter portion and a large diameter portion along the circumferential direction such that one tip is fitted to the other tip. Also good.
  • the notch 15A provided in the inner joint 10A and the notch 15B provided in the inner joint 10B are respectively provided on the opposing surfaces of the inner joint 10A and the inner joint 10B. It is not necessary to provide the structure positioned in the position which opposes in the longitudinal direction.
  • the notch portion 15 ⁇ / b> A provided in the inner joint 10 ⁇ / b> A and the notch portion 15 ⁇ / b> B provided in the inner joint 10 ⁇ / b> B are positioned as a configuration in which the steel pipe pile 1 is opposed to the longitudinal direction.
  • the notch 15A provided in the inner joint 10A and the inner joint 10B are provided on the respective opposing surfaces of the inner joint 10A and the inner joint 10B.
  • the following connection method is preferably employed.
  • the inner joint 10 ⁇ / b> B provided at the lower end of the inner joint 10 ⁇ / b> A provided at the upper end of one steel pipe pile 1 ⁇ / b> A that has been driven in advance is in contact with the inner joint 10 ⁇ / b> A.
  • the steel pipe pile 1B is suspended.
  • one or a plurality of closing unit members 21B are temporarily fixed using bolts 33 at one or a plurality of notches 15A, and the steel pipe pile 1B is used using a machine such as a crane. Then, it is suspended while confirming that the closing unit member 21B is inserted into the notch 15B formed in the inner joint 10B. Thereby, the notch 15A provided in the inner joint 10A and the notch 15B provided in the inner joint 10B are positioned at positions facing the longitudinal direction of the steel pipe pile 1.
  • one or a plurality of closing unit members 21B are temporarily fixed using bolts 33 at one or a plurality of notches 15B in advance, and the steel pipe pile 1B is used using a machine such as a crane.
  • the suspension unit member 21B may be suspended while confirming that the closure unit member 21B is inserted into the notch 15A formed in the inner joint 10A.
  • the temporarily closed closing unit member 21B is once removed. Thereafter, similarly to the above description, as shown in FIGS. 4 and 5, the standard unit member 21 ⁇ / b> A is provided with the inward key portion 23 (23 ⁇ / b> A, 23 ⁇ / b> B) via the notches 15 ⁇ / b> A, 15 ⁇ / b> B. (10A, 10B) is provided so as to engage with the outward circumferential groove 13 (13A, 13B).
  • the standard unit member 21 ⁇ / b> A is slid along the circumferential direction to a position where the engaging convex portion 24 and the engaging concave portion 14 are engaged.
  • the inward key portion 23 (23A, 23B) of the closing unit member 21B is provided outside the inner joint 10 (10A, 10B) through the notches 15A, 15B. Circumferentially engages with the circumferential groove 13 (13A, 13B).
  • a pair of steel pipe piles 1 ⁇ / b> A and 1 ⁇ / b> B are fixed to the steel pipe pile 1 by fixing the closing unit member 21 ⁇ / b> B to the inner joint 10 (10 ⁇ / b> A and 10 ⁇ / b> B) using a bolt 33. It can be connected so that it does not move relative to the longitudinal direction and does not move relative to the circumferential direction.
  • the notch 15A provided in the inner joint 10A and the notch 15B provided in the inner joint 10B are located at positions facing the longitudinal direction of the steel pipe pile 1. Positioned.
  • the inner joint 10 and the outer joint 20 have been described with respect to configurations obtained by processing a cylindrical body made of cast steel into a predetermined shape.
  • the inner joint and the outer joint 20 may be formed from a straight seam steel pipe.
  • the pipe body 2 can be formed from a spiral steel pipe, for example.
  • the straight seam steel pipe is manufactured using a plate winding method in which a flat steel plate is formed into a cylindrical shape using a huge roll or press, and the joint 3 is welded from the inner and outer surfaces.
  • the plate winding method is less expensive than methods such as ring forging that produce seamless steel pipes.
  • straight seam steel pipes have joints 3 along the longitudinal direction thereof, and are not homogeneous in the circumferential direction like seamless steel pipes, so the same rigidity cannot be obtained in the circumferential direction, and they are vulnerable to internal pressure and torsion.
  • the circumferential direction part in which notch part 15A, 15B is formed among the inner joint 10A and the inner joint 10B has few materials in the location, rigidity is low compared with another circumferential direction part. Therefore, the notches 15A and 15B are provided in the inner joint 10A and the inner joint 10B so as to be positions that do not straddle the joint 3 included in the straight seam steel pipe.
  • the inner joint 10 ⁇ / b> A and the inner joint 10 ⁇ / b> B are connected so that the respective joint portions 3 do not overlap along the longitudinal direction of the steel pipe pile 1.
  • the closing unit member 21B of the outer joint 20 is disposed in the notches 15A and 15B of the inner joint 10A and the inner joint 10B. If the joint portion 3 is disposed at a position overlapping the notches 15A and 15B, the rigidity is reduced in the notches 15A and 15B in which the closing unit member 21B having the joint 3 is disposed. Therefore, the joint 3 is provided on the standard unit member 21A. By preventing the closing unit member 21B and the joint portion 3 from overlapping each other along the longitudinal direction of the straight seam steel pipe, it is possible to prevent a part of the joint mechanism from becoming too rigid compared to the other parts.
  • the joint portion 3 of the inner joint 10A and the inner joint 10B is disposed with respect to the inner joint 10A and the inner joint 10. It is preferable to be provided at a position other than the position.
  • the steel pipe joint mechanism according to the present invention may be used to connect steel pipes such as earth retaining steel pipe sheet piles, landslide deterrent piles, and pier columns in addition to foundation piles for structure installation.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

La présente invention permet d'obtenir une simplification et une réduction du coût d'une structure pour relier une paire de tuyaux en acier. Ce mécanisme de joint pour une paire de pieux tubulaires en acier 1A, 1B est pourvu de joints internes 10A, 10B et d'un joint externe 20, qui est disposé autour desdits joints en les recouvrant : une partie clavette tournée vers l'intérieur 23, qui vient en prise avec une rainure périphérique tournée vers l'extérieur 13 des joints internes 10A, 10B, étant disposée dans le joint externe 20 ; le joint externe 20 étant composé d'une pluralité d'éléments unitaires 21 qui sont agencés en parallèle en entourant les joints internes 10A, 10B ; un élément unitaire standard 21A étant pourvu d'une saillie de mise en prise 24 ; un renfoncement de mise en prise 14, qui vient en prise avec la saillie de mise en prise 24 et qui empêche l'élément unitaire standard 21A d'être délogé vers l'extérieur, étant disposé dans les joints internes 10A, 10B ; des parties de découpe 15A, 15B, dans lesquelles l'élément unitaire standard 21A peut être inséré aussi loin qu'une position dans laquelle la saillie de mise en prise 24 peut venir en prise avec le renfoncement de mise en prise 14, étant ménagées dans une surface de paroi qui constitue le renfoncement de mise en prise 14.
PCT/JP2015/085888 2015-02-17 2015-12-22 Mécanisme de joint et procédé de liaison pour tuyau en acier WO2016132648A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/302,056 US20180119380A1 (en) 2015-02-17 2015-12-22 Joint mechanism and connection method for steel pipe
SG11201608073UA SG11201608073UA (en) 2015-02-17 2015-12-22 Joint mechanism and connection method for steel pipe
KR1020167028611A KR20170124436A (ko) 2015-02-17 2015-12-22 강관의 이음 기구 및 연결 방법

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015-028870 2015-02-17
JP2015028870 2015-02-17
JP2015250212A JP6594193B2 (ja) 2015-02-17 2015-12-22 鋼管の継手機構及び連結方法
JP2015-250212 2015-12-22

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WO2016132648A1 true WO2016132648A1 (fr) 2016-08-25

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312925U (fr) * 1989-06-12 1991-02-08
JP2000328557A (ja) * 1999-05-19 2000-11-28 Asahi Kasei Kenzai Kk 杭の継手構造及びその施工方法
JP2004250984A (ja) * 2003-02-20 2004-09-09 Sumitomo Mitsui Construction Co Ltd 場所打ち鋼管コンクリート杭
JP2005002598A (ja) * 2003-06-10 2005-01-06 Asahi Kasei Construction Materials Co Ltd 既製杭の継構造
JP2006138095A (ja) * 2004-11-11 2006-06-01 Sumitomo Metal Ind Ltd 現場打ち鋼管コンクリート杭
JP2006291543A (ja) * 2005-04-08 2006-10-26 Sumitomo Metal Ind Ltd 鋼管の継手構造
JP2008221245A (ja) * 2007-03-09 2008-09-25 Sumitomo Metal Ind Ltd 鋼管の突合せ溶接方法および溶接鋼管の製造方法
JP2012188871A (ja) * 2011-03-11 2012-10-04 Jfe Steel Corp コンクリート充填円形鋼管柱

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312925U (fr) * 1989-06-12 1991-02-08
JP2000328557A (ja) * 1999-05-19 2000-11-28 Asahi Kasei Kenzai Kk 杭の継手構造及びその施工方法
JP2004250984A (ja) * 2003-02-20 2004-09-09 Sumitomo Mitsui Construction Co Ltd 場所打ち鋼管コンクリート杭
JP2005002598A (ja) * 2003-06-10 2005-01-06 Asahi Kasei Construction Materials Co Ltd 既製杭の継構造
JP2006138095A (ja) * 2004-11-11 2006-06-01 Sumitomo Metal Ind Ltd 現場打ち鋼管コンクリート杭
JP2006291543A (ja) * 2005-04-08 2006-10-26 Sumitomo Metal Ind Ltd 鋼管の継手構造
JP2008221245A (ja) * 2007-03-09 2008-09-25 Sumitomo Metal Ind Ltd 鋼管の突合せ溶接方法および溶接鋼管の製造方法
JP2012188871A (ja) * 2011-03-11 2012-10-04 Jfe Steel Corp コンクリート充填円形鋼管柱

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