WO2014080660A1 - 杭の無溶接継ぎ手 - Google Patents

杭の無溶接継ぎ手 Download PDF

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Publication number
WO2014080660A1
WO2014080660A1 PCT/JP2013/066691 JP2013066691W WO2014080660A1 WO 2014080660 A1 WO2014080660 A1 WO 2014080660A1 JP 2013066691 W JP2013066691 W JP 2013066691W WO 2014080660 A1 WO2014080660 A1 WO 2014080660A1
Authority
WO
WIPO (PCT)
Prior art keywords
arc
shear ring
shaped
fitting
piles
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2013/066691
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
坂村　博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Hume Corp
Original Assignee
Nippon Hume Corp
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 Nippon Hume Corp filed Critical Nippon Hume Corp
Priority to HK15108697.2A priority Critical patent/HK1211638A1/xx
Priority to SG11201503007QA priority patent/SG11201503007QA/en
Priority to KR1020157009644A priority patent/KR20150081264A/ko
Priority to CN201380048749.7A priority patent/CN104797757B/zh
Publication of WO2014080660A1 publication Critical patent/WO2014080660A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
    • E02D5/526—Connection means between pile segments

Definitions

  • the present invention relates to a non-welded joint for piles that connect between piles joined in the axial direction without welding when precast concrete piles or other piles are built into the ground.
  • connection strength depends on the quality of welding and requires a high degree of skill, but recently there is a shortage of skilled engineers, and the pile connection work is an outdoor work at the pile driving site. Therefore, there is a problem that it depends on the weather.
  • a dovetail shape is vertically divided on the outer periphery of the end of the arc-shaped plate 3 mounted across the end fittings 2 and 2 of both piles 1 and 1, as shown in FIG.
  • the arcuate plate-to-plate connecting projections 3a, 3a having the above-described shape are formed, and the plate-like arcuate plate-to-plate connecting metal fitting 7 having the taper dovetail groove 7a that fits into the dovetail shape is used.
  • 3A, 3a are fitted together, and the arc-shaped plate-to-plate connecting fitting 7 is slid to connect the arc-shaped plates 3, 3 while pulling each other (Patent Document 2).
  • the unwelded joint having the structure shown in FIG. 13 described above has a large number of bolts because the arc-shaped plate is bolted to the upper and lower end fittings. There was a problem that a lot of work was required for the work.
  • the present invention uses a small number of members, is low in cost and has good workability, has a high bending strength and a high shear strength, and has a rotational torque transmission mechanism at the same time. It was made for the purpose of providing a non-welded joint for piles.
  • the feature of the invention described in claim 1 for solving the conventional problems as described above is fitted in a winding arrangement on the outer periphery of both ends of the joint end portions of the piles to be connected to each other.
  • a circular ring-shaped shear ring is provided on each of the joint surfaces of the metal fittings on both ends, each having a circular ring-shaped shear ring fitting portion concentrically arranged with the metal fittings on the both ends.
  • the convex portions are provided on the bottom surfaces of the two shear ring fitting portions, and the convex portions are fitted on the upper and lower surfaces of the shear ring at positions corresponding to the convex portions of the bottom surface.
  • a concave portion is integrally provided, and the convex portion on the bottom surface is fitted into the concave portion on the upper and lower surfaces of the shear ring, thereby preventing the relative movement in the circumferential direction between the shear ring and the metal fittings on both ends, thereby connecting the upper and lower sides. This is because the rotation moment between the piles is transmitted.
  • An arc-shaped plate-to-plate connecting bracket is provided, and the arc-shaped plate-to-plate connecting bracket includes a tapered dovetail having a narrow tapered shape on either side of the upper and lower sides, and has a dovetail-shaped transverse cross section.
  • the outer surface of the end portion is provided with arcuate plate-to-plate connection projections each having a tapered dovetail shape that fits into the taper dovetail, and both the arcuate plate-to-plate connection projections are inserted into the taper dovetail groove.
  • a feature of the invention described in claim 3 is that, in addition to the configuration of claim 1 or 2, the shear ring fitting portion is formed in a groove shape on the surface of the joint surface of the end fitting.
  • the feature of the invention described in claim 4 is that, in addition to the configuration of claim 1 or 2, the angle between the inner peripheral edge surface of the end plate center opening in which the shear ring fitting portion is formed at the center of both end fittings and the joint end surface. This is because the circular ring-shaped shearing ring is fitted to the inner peripheral surface of the central opening of the end plate.
  • each shear ring fitting portion of the metal fittings at both ends is formed in a tapered shape whose bottom surface side is narrower than the joint surface opening portion side.
  • the inner and outer peripheral surfaces of the shear ring are formed in a tapered shape whose upper and lower sides correspond to the respective shear ring fitting portions.
  • the shear ring is integrally projected on one side of the both end fittings, and the cross-section is a base having a narrow projecting end side. It is formed in a shape, and the shear ring is fitted on the other side of the both end fittings with a shear ring fitting portion formed in a shape corresponding to a trapezoidal shape of the shear ring integrated with the end fitting.
  • a plurality of non-welded joints of piles according to the present invention are fitted in a winding arrangement on the outer periphery of both ends of the joints of the piles to be connected to each other as described in claim 1.
  • Each of the end fittings is provided with a flange-like protrusion integrally on the outer periphery of the end fitting, and an inner peripheral surface of the arc-shaped plate is provided with a recess groove in which the protrusions of the both end fittings are fitted.
  • a circular ring-shaped shear ring is provided on each of the joint surfaces of the metal fittings on both ends, each having a circular ring-shaped shear ring fitting portion concentrically arranged with the metal fittings on the both ends.
  • a concave portion is integrally provided, and the convex portion on the bottom surface is fitted into the concave portion on the upper and lower surfaces of the shear ring, thereby preventing the relative movement in the circumferential direction between the shear ring and the metal fittings on both ends, thereby connecting the upper and lower sides.
  • the rotation moment between the piles is transmitted so that a shear ring is interposed between the end fittings of the piles that are to be connected to each other, so that the shear resistance in the direction perpendicular to the axial direction is increased. , The strength of the joint portion is increased.
  • the shear ring and the shear ring fitting portion are prevented from relative movement in the rotational direction due to the fitting of the concavo-convex portion, the torque transmission function is added at the same time, and a multi-functional joint structure is formed by a small number of members. can get.
  • a plate-shaped arc-shaped plate-to-plate connecting bracket for connecting the arc-shaped plates adjacent to each other, and the arc-shaped plate-to-plate connecting bracket has a tapered shape in which one of the upper and lower sides is narrow.
  • a taper dovetail having a dovetail shape in cross section, and an outer surface of each end of the arc-shaped plate adjacent to each other is formed by vertically dividing a tapered dovetail that fits into the taper dovetail.
  • Each of the arc-shaped plate connecting projections is provided, and the arc-shaped plate connecting projections are inserted into the tapered dovetail groove so that adjacent arc-shaped plates are connected by the arc-shaped plate connecting bracket.
  • both ends of the arc-shaped plate connecting bracket are screwed to the arc-shaped plate, when a force in the bending direction is applied to the connecting portion of the pile, a component force is generated that causes the arc-shaped plates to separate from each other.
  • the arc-plate connecting bracket is subjected to bending forces at both ends, but the lifting at that time is prevented by screwing, eliminating the need to increase the bending strength of the arc-plate connecting bracket and reducing the thickness. It can be molded, is lightweight and easy to handle, and the protrusion height to the outer periphery of the pile can be made small.
  • the shear ring fitting portion is formed in a groove shape on the surface of the joint surface of the end fitting, so that the shear ring fitting portion is formed in a disk-like end.
  • the corner portion between the inner peripheral surface of the end plate center opening in which the shear ring fitting portion is formed at the center of both end fittings and the joint end surface is cut off stepwise.
  • each shear ring fitting portion of the metal fittings at both ends is formed in a tapered shape whose bottom surface side is narrower than the joint surface opening portion side, and the inner circumference of the shear ring Since the upper and lower surfaces are formed in a tapered shape corresponding to each of the shear ring fitting portions, the taper groove of the both end metal parts and the taper of the shear ring when joining the end metal parts of the upper and lower piles. Depending on the shape, centering between the two piles is automatically performed, and high-precision joining between the piles is facilitated.
  • the shear ring is integrally projected on one side of the both end fittings, and the cross section is formed in a trapezoidal shape with a narrowed protruding end side,
  • the shear ring is formed by fitting the shear ring on the other side of the both end fittings with a shear ring fitting portion formed in a shape corresponding to a trapezoidal shape of the shear ring integral with the end fitting. Since this is done by molding the end fittings, the number of manufacturing steps is reduced and the cost is reduced.
  • FIG. 1 It is a cross-sectional view showing an example of a non-welded joint of a pile according to the present invention. It is a longitudinal cross-sectional view same as the above. It is a perspective view which shows an example of the shear ring used for this invention. It is a cross-sectional view of the connection structure between arc-shaped plates of the weldless joint shown in FIG. FIG.
  • the arc-shaped plate of a non-welded joint shown in FIG. 1 is shown, (a) is an end view, and (b) is a plan view of the end.
  • the arc-plate connecting metal fittings of the weldingless joint shown in FIG. 1 are shown, (a) is a front view and (b) is a plan view.
  • reference numeral 10 is a pile body
  • 11 is a steel pipe covering the outer periphery of the pile body
  • 12 is an end fitting integrally provided at the end of the pile body 10.
  • the end fitting 12 is formed in a circular plate shape, and the outer surface thereof is a joining surface 12a. Although not shown in the drawing, the end fitting 12 is fixed with an end portion of a PC tendon for introducing prestress inserted into the pile body 10.
  • the upper and lower joint surfaces 12a and 12a are formed with shear ring fitting portions 30 and 30 made of concave grooves in a circular ring shape concentrically with the end fitting 12 at positions where they are aligned and face each other.
  • a circular ring-shaped shear ring 31 is fitted in an arrangement straddling the fitting portions 30, 30.
  • Each of the shear ring fitting portions 30 and 30 is formed in a trapezoidal shape in which the cross section in the pile radial direction has a shape in which the width on the bottom surface side, that is, the groove bottom 30a side is narrowed and the groove release portion side is enlarged.
  • 31 is a shape in which the cross section in the radial direction of the pile is formed by integrally stacking opposite trapezoids corresponding to the shearing ring fitting portions 30 and 30 on the upper and lower sides with respect to the center in the height direction, that is, in the height direction It is formed in a taper shape with a taper on the top and bottom with respect to the center.
  • the upper and lower surfaces of the shear ring 31 are formed with recesses 32, 32 each having a shape that is notched and recessed at a predetermined interval.
  • Convex portions 33, 33 that fit into the concave portions 32, 32 are formed at the bottom of the shear ring fitting portions 30, 30.
  • the outer periphery of the end fitting 12 is integrally formed with a flange 13 protruding in a flange shape from the outer periphery of the steel pipe 11, and the upper and lower piles 1, 1 are joined up and down so The protrusions 13 and 13 are projected on the outer periphery of the joint portion in a state of being overlapped.
  • An arcuate plate 15 is mounted on the outer periphery of the joint.
  • the arc-shaped plate 15 has a shape obtained by dividing the circumferential direction of the cylindrical ring into three parts, and the inner peripheral surface is formed in an arc shape having substantially the same curvature as the outer peripheral surface of the end fitting 12, and the three arc-shaped plates 15 are formed. , 15 and 15 are formed in an arcuate direction length that creates a gap 16 that absorbs a fastening allowance at the time of fastening, which will be described later, when the end fitting 12 is fitted to the outer periphery.
  • the arcuate plates 15 adjacent to each other in a state where the arcuate plates 15, 15, 15 adjacent to each other are wound around the outer periphery of the end fittings 12, 12 are fitted to the outer surface of the end of the arcuate plate 15.
  • Planar portions 19 and 19 are formed on the outer peripheral surface of the end portion 15 so as to be arranged on the same plane.
  • the flat portions 19 and 19 have a shape in which the outer peripheral surfaces of the end portions of the arc-shaped plates 15 and 15 are cut flat, leaving the arc-plate inter-plate connecting projections 20 and 20 described later.
  • the arc-shaped plate-to-plate connecting projections 20 and 20 are connected and fixed to each other by the arc-shaped plate-to-plate connecting fitting 21 and the outer surfaces of the arc-shaped plate-to-plate connecting projections 20 and 20 are on the same plane.
  • the outer surface is formed flat so as to be located at the position.
  • the arc-shaped plate-to-plate connecting projections 20 and 20 have a vertically tapered shape with a narrow upper side and end surfaces of the adjacent arc-shaped plates 15 and 15 facing each other.
  • the ant shape is divided in half vertically.
  • the arc-shaped interplate connecting projection 20 has a plate end side surface 20a parallel to the pile axis, and a plate center side surface 20b having a tapered shape with the upper side inclined toward the plate end side, That is, the protrusion surface side is formed in a wide dovetail shape from the protrusion root part.
  • a pair of adjacent arc-shaped plate-to-plate connecting projections 20 and 20 form a tapered shape whose upper side is squeezed, and both tapered surfaces are formed in a wide dovetail shape on the projection surface side.
  • the arcuate plate-to-plate connection fitting 21 is formed in a flat plate shape as a whole, and a tapered dovetail groove 22 into which the pair of arcuate plate-to-plate connection projections 20 and 20 that are tapered as described above is fitted.
  • a tapered dovetail groove 22 into which the pair of arcuate plate-to-plate connection projections 20 and 20 that are tapered as described above is fitted.
  • the three arc-shaped plates 15 are connected in a cylindrical shape by connecting the ends of the three arc-shaped plates 15 in a circular arrangement to each other by the three arc-shaped plate-to-plate connecting fittings 21 so that the ends of the two piles are connected to each other.
  • the brackets 12 and 12 are connected.
  • Bolt insertion holes 25 are opened through the front and back of both end portions of the arc-shaped plate connecting metal fitting 21 and the arc-shaped plates 15 and 15 are drawn and connected to the flat portions 19 at both ends of the arc-shaped plate 15.
  • a screw hole 26 is formed at a position aligned with the bolt insertion hole 25, and a bolt 27 for sewing is inserted into the bolt insertion hole 25, screwed into the screw hole 26, and tightened.
  • the arcuate plate-to-plate connecting bracket 21 are fixed to each other.
  • connection work of the piles 1 and 1 by the non-welded joint configured in this way is built on the lower pile 1 first and formed on the joint surface 12a of the end fitting 12 at the upper end.
  • a ring-shaped shear ring 31 is fitted to the shear ring fitting portion 30 that is formed.
  • the upper surface side of the shear ring 31 protrudes on the joint surface 12a in a state where the convex portion 33 at the bottom of the shear ring fitting portion 30 of the lower end fitting 12 is fitted in the concave portion 32 on the lower surface of the shear ring. It becomes a state.
  • the shear ring fitting portion 30 has a narrow trapezoidal shape on the bottom surface 30a side, that is, a taper shape in which the joint surface opening portion side is wider than the bottom surface 30a, and the upper side of the shear ring 31 is correspondingly tapered.
  • the three arc-shaped plates 15, 15, 15 are formed in a ring shape on the outer sides of the protruding ridges 13, 13 that are superimposed on the outer periphery of the joint portion and project in an annular shape.
  • the arc-shaped plate 15, the arc-shaped plate connection projections 20, 20 of the adjacent arc-shaped plates 15, 15 are fitted in the tapered dovetail groove 22 by sliding the arc-shaped plate connecting fitting 21. Fasten 15 to each other in the pulling direction and fix.
  • the sliding operation of the arc-shaped plate connecting bracket 21 is performed using a hydraulic jack.
  • a bolt 27 for sewing is inserted into the bolt insertion hole 25 of the arc-shaped plate-to-plate connection fitting 21, screwed into the screw hole 26 of the arc-shaped plates 15, 15, and tightened, thereby connecting the arc-shaped plates 15, 15 to the arc-shaped plate.
  • the metal fittings 21 are fixed to each other.
  • the arc-shaped plate 15 has a shape obtained by dividing the circumferential direction of the cylindrical ring into three parts, but may be formed into other plural parts.
  • the shear ring fitting part 30 is formed in the taper shape in which the end-plate center opening width side is wide compared with the bottom face side, as shown in FIG. 9, the pile which made the end-plate center opening width side the same as shown in FIG.
  • the radial cross section may be a square concave groove, and the same cross sectional shape of the shear ring 31 may be a square shape corresponding thereto.
  • the shear ring fitting portion 30 is formed in the central portion of the radial width of the end fitting 12 having a disk ring shape (donut shape) is shown in FIG.
  • the end plate 12 is formed in an annular shape in which the corners of the inner peripheral surface 12b of the end plate central opening formed at the center of the end fitting 12 and the joining end surface 12a are scraped off stepwise, and the inner peripheral surface 12b of the end plate central opening.
  • the circular ring-shaped shear ring 31 may be fitted in the exposed arrangement.
  • the shear ring 31 is formed as a completely separate body from the end fitting 12 is shown.
  • the end metal part 12 has shown what was comprised with the flat ring-shaped board
  • Various shapes can be used.

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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)
  • Joining Of Building Structures In Genera (AREA)
PCT/JP2013/066691 2012-11-22 2013-06-18 杭の無溶接継ぎ手 Ceased WO2014080660A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
HK15108697.2A HK1211638A1 (en) 2012-11-22 2013-06-18 Non-welded joint for piles
SG11201503007QA SG11201503007QA (en) 2012-11-22 2013-06-18 Non-welded joint for piles
KR1020157009644A KR20150081264A (ko) 2012-11-22 2013-06-18 말뚝의 무용접 조인트
CN201380048749.7A CN104797757B (zh) 2012-11-22 2013-06-18 桩的非焊接接头

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-256610 2012-11-22
JP2012256610A JP5885107B2 (ja) 2012-11-22 2012-11-22 杭の無溶接継ぎ手

Publications (1)

Publication Number Publication Date
WO2014080660A1 true WO2014080660A1 (ja) 2014-05-30

Family

ID=50775852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/066691 Ceased WO2014080660A1 (ja) 2012-11-22 2013-06-18 杭の無溶接継ぎ手

Country Status (8)

Country Link
JP (1) JP5885107B2 (enExample)
KR (1) KR20150081264A (enExample)
CN (1) CN104797757B (enExample)
HK (1) HK1211638A1 (enExample)
MY (1) MY160497A (enExample)
SG (1) SG11201503007QA (enExample)
TW (1) TWI589753B (enExample)
WO (1) WO2014080660A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113957889A (zh) * 2021-11-17 2022-01-21 东莞嘉誉诚建设基础工程有限公司 一种注浆型预应力管桩及其施工方法
CN115075233A (zh) * 2022-05-19 2022-09-20 中国铁道科学研究院集团有限公司铁道建筑研究所 管桩机械连接接头

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6558684B2 (ja) * 2014-09-26 2019-08-14 日本ヒューム株式会社 杭無溶接継手用締結装置
JP6388336B2 (ja) * 2014-10-30 2018-09-12 千代田工営株式会社 杭の継手構造
KR200488957Y1 (ko) * 2017-08-16 2019-04-09 두산중공업 주식회사 방진구의 쉘 장치
CN110512600B (zh) * 2019-08-09 2021-06-04 天津建工城市建设发展有限公司 一种预制桩中的连接机构及其接桩方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005213947A (ja) * 2004-01-30 2005-08-11 Hiroshi Kitamura コンクリート杭の接続方法及び接続構造
JP3718002B2 (ja) * 1996-06-25 2005-11-16 旭化成建材株式会社 ネジ式杭継手
JP2011089302A (ja) * 2009-10-22 2011-05-06 Nippon Hume Corp 杭の無溶接継ぎ手

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3691886B2 (ja) * 1995-12-01 2005-09-07 シントク工業株式会社 杭の接続金物
JPH11190020A (ja) * 1997-12-26 1999-07-13 Shintoku Kogyo Kk 杭の継手構造
JP4474430B2 (ja) * 2007-03-19 2010-06-02 前田製管株式会社 杭の継ぎ手構造
CN201924349U (zh) * 2011-02-14 2011-08-10 江苏建华管桩有限公司 一种用于抗拔管桩的抱箍式连接卡
MY170093A (en) * 2012-10-08 2019-07-05 Chin Chai Ong Article for joining concrete piles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3718002B2 (ja) * 1996-06-25 2005-11-16 旭化成建材株式会社 ネジ式杭継手
JP2005213947A (ja) * 2004-01-30 2005-08-11 Hiroshi Kitamura コンクリート杭の接続方法及び接続構造
JP2011089302A (ja) * 2009-10-22 2011-05-06 Nippon Hume Corp 杭の無溶接継ぎ手

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113957889A (zh) * 2021-11-17 2022-01-21 东莞嘉誉诚建设基础工程有限公司 一种注浆型预应力管桩及其施工方法
CN115075233A (zh) * 2022-05-19 2022-09-20 中国铁道科学研究院集团有限公司铁道建筑研究所 管桩机械连接接头

Also Published As

Publication number Publication date
JP2014105430A (ja) 2014-06-09
CN104797757A (zh) 2015-07-22
KR20150081264A (ko) 2015-07-13
TW201420844A (zh) 2014-06-01
MY160497A (en) 2017-03-15
HK1211638A1 (en) 2016-05-27
TWI589753B (zh) 2017-07-01
JP5885107B2 (ja) 2016-03-15
SG11201503007QA (en) 2015-06-29
CN104797757B (zh) 2017-03-08

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