EP1403436A2 - Verbindungsschuh für Pfähle - Google Patents

Verbindungsschuh für Pfähle Download PDF

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Publication number
EP1403436A2
EP1403436A2 EP03250907A EP03250907A EP1403436A2 EP 1403436 A2 EP1403436 A2 EP 1403436A2 EP 03250907 A EP03250907 A EP 03250907A EP 03250907 A EP03250907 A EP 03250907A EP 1403436 A2 EP1403436 A2 EP 1403436A2
Authority
EP
European Patent Office
Prior art keywords
pile
connecting plate
diameter portion
bolt
bolts
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.)
Withdrawn
Application number
EP03250907A
Other languages
English (en)
French (fr)
Other versions
EP1403436A3 (de
Inventor
Atsushi Nishiwaki
Sadao c/o Geotop Corporation Yabuuchi
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.)
Geotop Corp
Original Assignee
Geotop 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 Geotop Corp filed Critical Geotop Corp
Publication of EP1403436A2 publication Critical patent/EP1403436A2/de
Publication of EP1403436A3 publication Critical patent/EP1403436A3/de
Withdrawn legal-status Critical Current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
    • E02D5/52—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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

Definitions

  • the present invention concerns a pile connecting structure, more specifically a pile connecting structure of high workability capable of connecting upper pile and lower pile to each other simply and accurately.
  • the objective of the present invention realized in view of various problems with said conventional pile connecting structures, is to provide a pile connecting structure of high workability capable of simply and accurately connecting the upper and lower piles to each other, and preventing the pile diameter from becoming large, even at the connection portion.
  • the pile connecting structure according to the present invention is a pile connecting structure for connecting upper and lower piles to each other by interposing a connecting plate of approximately the same diameter as the piles at the connection portion between the upper and lower piles, characterized in that the end plate on either one of the upper or lower piles and the connecting plate are fixed by screwing bolts inserted into circular-shaped bolt insertion holes formed on the connecting plate to the end plate of the pile on one side, and the end plate of the other pile and the connecting plate are fixed in the state where the heads of the bolts screwed to the pile on the other side is inserted into the large diameter portion of the heteromorphic bolt insertion holes communicating between a large diameter portion which the heads of the bolts formed on the connecting plate can pass through, and a small diameter portion which the heads of the bolts cannot pass through, by making the other pile and the connecting plate move in a relative fashion so that the bolts may shift from the large diameter portion of the heteromorphic bolt insertion holes to the small diameter portion.
  • This pile connecting structure is capable of fixing, in a pile connecting structure for connecting upper and lower piles to each other, the end plates of the upper and lower piles and the respective connecting plates to each other by bolting, and by interposing a connecting plate of approximately the same diameter as the piles at the connecting portion between the upper and lower piles, thus quickly enabling the establishment of a connection between the upper and lower piles at low cost, without having any influence on pile length thanks to the comparatively small thickness of the connecting portion, and further enabling the burying of piles in the ground without presenting any obstacle to the pile driving work, thanks to the absence of any projections at the outer circumference of the piles.
  • a cylindrical body is integrally disposed in which the end of the upper and lower piles may be inserted.
  • an operating port for fastening, from the outer circumferential side of the connecting plate, the bolts shifted from the large diameter portion of the heteromorphic bolt insertion holes to the small diameter portion.
  • the connecting plate may be formed by being split into a plurality of pieces.
  • auxiliary member having a threaded hole different from that of the connecting plate, so that the pile connecting bolts may be screwed into that auxiliary member.
  • projections in the shape of bolts may be provided in a way that they can be fixed to either the end parts of the piles or the auxiliary members.
  • Fig. 1 to Fig. 2 indicate the first embodiment of the pile connecting structure according to the present invention.
  • This pile connecting structure is a pile connecting structure for connecting an upper pile 1 and a lower pile 3 to each other, by interposing a connecting plate 5 of about the same diameter as the piles, at the connecting portion between the upper pile 1 and the lower pile 3, wherein the end plate 4 of either one of the upper pile 1 or lower pile 3, lower pile 3 in this embodiment, and the connecting plate 5 are fixed by screwing bolts 6 inserted in circular bolt inserting holes 51 formed on the connecting plate 5 to the bolt holes 41 in the end plate 4 of the lower pile 3, and the end plate 2 of the other pile, upper pile 1 in this embodiment, and the connecting plate 5 are fixed, in the state in which the head 71 of the bolts 7 screwed to the end plate 2 of the upper pile 1 is inserted in the large diameter portion 52d of heteromorphic bolt insertion holes 52 communicating between a large diameter portion 52d which the head 71 of the bolts 7 formed on the connecting plate 5 can pass through and a small diameter portion 52c which the head 71 of the bolts 7 cannot pass through, by making the upper pile 1
  • the piles to which can be applied this pile connecting structure are concrete piles such as prestressed concrete piles, etc., steel piles, SC piles, and composite piles such as PRC piles, etc. provided with end plate at the end, though not particularly restricted to them. Explanation will be given below by taking an example of prestressed concrete piles.
  • the upper pile 1 and lower pile 3 consisting of prestressed concrete piles have end plates 2, 4 disposed at their end, and in these end plates 2, 4 are formed bolt holes 21, 41 which were used for introducing prestressed (concrete) when manufacturing prestressed concrete piles. Those bolt holes 21, 41 are utilized in this embodiment.
  • the bolt holes 21, 41 may be newly formed separately from the bolt holes used for introducing prestressed (concrete), as a matter of course.
  • the connecting plate 5 has a donut shape of about the same diameter as that of the upper pile 1 and lower pile 3, more concretely the end plates 2, 4 of the upper pile 1 and lower pile 3 are manufactured with steel sheet (including molded sheet) of a thickness about 1.5 to 2 times the heads 61, 71 of the bolts 6, 7, for example, though not particularly restricted to it.
  • bolt holes 51 On the connecting plate 5 are formed bolt holes 51 at the position corresponding to the bolt holes 41 formed in the end plate 4 of the lower pile 3, and at proper position between those bolt holes 51 are formed bolt holes 52 at the position corresponding to the bolt holes 21 formed in the end plate 2 of the upper pile 1.
  • bolt holes 51, 52 are formed on one face of the connecting plate 5 respectively, preferably alternately in the circumferential direction, though not particularly restricted to it.
  • the bolt holes 51 will be provided with a bolt head inserting portion 51a formed deeper than the height of the head 61 of the bolt 6, as shown in Fig. 1 (A), (B), so that the head 61 of the bolt 6 may be inserted without being exposed to outside.
  • This bolt head inserting portion 51 a will be formed in a size enabling to tighten the bolt 6 by fitting a box wrench (not illustrated) at the head 61 of the bolt 6.
  • the bolt holes 52 will be in a heteromorphic shape like that of a snowman communicating between a large diameter portion 52d which the head 71 of the bolts 7 can pass through and a small diameter portion 52c which the head 71 of the bolts 7 cannot pass through, and be provided with a bolt head inserting portion 52a formed deeper than the height of the head 71 of the bolt 7, so that the head 71 of the bolt 7 may be inserted without being exposed, as shown in Fig. 1 (A), (C).
  • This bolt insertion holes 52 will be provided on the outer circumferential side of the connecting plate 5, so that it may also serve as an operating port So for fastening the bolt 7 shifted from the large diameter portion 52d of the bolt insertion hole 52 to the small diameter portion 52c, from outside the outer circumference of the connecting plate 5, by inserting a tool S such as spanner, etc.
  • the bolt insertion hole 52 may be all right to construct (the bolt insertion hole 52) in a way to either make the bolt 7, the head 71 of which is inserted in the large diameter portion 52d of the heteromorphic bolt insertion hole 52, turn in the fastening direction, when shifting it from the large diameter portion 52d to the small diameter portion 52c of the heteromorphic bolt insertion hole 52, with the difference in contact resistance between the bolt seating face 52b and the head 71 of the bolt 7 [To make the contact resistance between the bolt seating face 52b on the outer circumference side of the connecting plate 5 and the head 71 of the bolt 7 larger than that on the inner circumference side of the connecting plate 5 (case where the bolt 7 is right threaded, in this embodiment) (or smaller (case where the bolt 7 is left threaded, in this embodiment)), either perform surface treatment to the bolt seating face 52b, or dispose a member increasing the contact resistance such as soft metal plate such as aluminium, etc.
  • Fig. 2 (A) install the lower pile 3 in a pile hole dug in the ground and, in the state in which the lower pile 3 is provisionally fixed so that the lower pile 3 may not make any up-down movement or turn, when the end plate 4 disposed at the end part of the lower pile 3 reached a prescribed position from the ground such as a height easy for execution of work by workers on the ground, for example, though not particularly restricted to it, place the connecting plate 5 concentrically on the end plate 4 of the lower pile 3, make the bolt hole 41 formed in the end plate 4 agree with the bolt insertion hole 51 in the connecting plate 5, insert the bolt 6 in the bolt insertion hole 51, and fit the bolt 6 in the bolt hole 41 by screwing, by using a box wrench (not illustrated).
  • the fixing work of the end plate 4 of the lower pile 3 and the connecting plate 5 may be performed before the lower pile 3 is installed in the pile hole.
  • the upper pile 1 and the lower pile 3 can be fixed with the bolt 6 and the bolt 7 respectively, by interposing one piece of connecting plate 5 at the connecting portion between the two, enabling to perform the connection between upper pile 1 and lower pile 3 quickly and at low cost, without having any influence on the pile length because the thickness of the connecting portion can be kept comparatively small.
  • absence of any projection at the outer circumference of the piles makes it possible to bury the piles in the ground without putting any obstacle to the pile driving work, and execute the piles with high reliability and accuracy and efficiently.
  • This pile connecting structure is identical to said pile connecting structure of first embodiment in that it is a pile connecting structure for connecting an upper pile 1 and a lower pile 3 to each other, by interposing a connecting plate 5 of about the same diameter as the piles, at the connecting portion between the upper pile 1 and the lower pile 3, wherein the end plate 4 of either one of the upper pile 1 or lower pile 3, lower pile 3 in this embodiment, and the connecting plate 5 are fixed by screwing bolts 6 inserted in circular bolt inserting holes 51 formed on the connecting plate 5 to the bolt holes 41 in the end plate 4 of the lower pile 3, and the end plate 2 of the other pile, upper pile 1 in this embodiment, and the connecting plate 5 are fixed, in the state where the head 71 of the bolts 7 screwed to the end plate 2 of the upper pile 1 is inserted in the large diameter portion 52d of heteromorphic bolt insertion holes 52 communicating between a large diameter portion 52d which the head 71 of the bolts 7 formed on the connecting plate 5 can pass through and a small diameter portion 52c which the head 71 of the bolt
  • the cylindrical body 8 will be made of steel, in the same way as the connecting plate 5, integrally disposed on the connecting plate 5 by welding, etc. (the cylindrical body 8 may be integrally formed with the connecting plate 5, in the case where it is made of casting), and will be formed in dimensions enabling to insert the end of the upper pile 1 and the lower pile 3 by several centimeters to tens of centimeter, though not particularly restricted to it.
  • no operating port is formed for fastening, by inserting a tool S such as spanner, etc. from outside the outer circumference of the connecting plate 5, the bolts 7 shifted from the large diameter portion 52d of the heteromorphic bolt insertion holes 52 to the small diameter portion 52c by making the upper pile 1 and the connecting plate 5 relatively turn to move in the state where the connecting plate 5 is fixed to the lower pile 3 (it is possible, of course, to form an operating port So to that end, in the cylindrical body 8 and the connecting plate 5, in a way to communicate with the bolt insertion holes 52, as shown in Fig. 3 to Fig. 4 with dotted line, and in Fig.
  • a shift control means for controlling relative turn and movement of the upper pile 1 and the connecting plate 5 (also the lower pile 3 and the connecting plate 5, as required) after shifting the upper pile 1 and the connecting plate 5 from the large diameter portion 52d of the bolt insertion holes 52 to the small diameter portion 52c by making them relatively turn and move, with the connecting plate 5 fixed in the lower pile 3.
  • This shift control means is constructed, in this embodiment, with a bolt insertion hole 81 formed in the cylindrical body 8, and a bolt 9 designed to be either inserted or screwed in this bolt insertion hole 81 and either screwed or fixed to the upper pile 1 (lower pile 3).
  • a groove 22 in which to insert the tip of the bolt 9, so that the upper pile 1 and the connecting plate 5 (the lower pile 3 and the connecting plate 5) may be fixed firmly to each other, by the bolt 9 screwed in the bolt insertion hole 81.
  • This groove 22 may take any desired sectional shape such as U-shaped groove, etc. or may also be realized as a hole or threaded hole in which to either insert or screw the tip of the bolt 9, in place of a groove.
  • a pin, etc. may also be used, in place of the bolt 9, as shift control means.
  • the connecting plate 5 (cylindrical body 8) was formed as a single body, the connecting plate 5 (cylindrical body 8) may also be formed by splitting into a plurality of pieces.
  • the connecting plate 5 may be split into a plurality of unit component members 5A, 5B in the circumferential direction (vertical splitting), as shown in Fig. 7 to Fig. 8 (Split into 2 pieces in the illustrated embodiment. Splitting into 3 or more pieces is also possible.
  • the unit component members 5A, 5B in a way to share a single bolt 6, by providing a fitting portion so that they may fit at the position of the bolt insertion holes 51A, 51B formed on the unit component members 5A, 5B, so that the integrity of the split unit component members 5A, 5B may be maintained easily.), or split into a plurality of unit component members 5C, 5D, 5E in the horizontal direction (horizontal splitting), as shown in Fig. 9 to Fig. 10 (Split into 3 pieces in the illustrated embodiment. Splitting into 2 pieces or 4 or more pieces is also possible.).
  • the connecting plate 5 (cylindrical body 8) by splitting it into a plurality of unit component members, it becomes possible to reduce the shape and weight of the unit component members constituting the connecting plate 5 (cylindrical body 8), and thus improve its workability and ease of handling.
  • auxiliary members 2A, 4A having threaded hole different from that of the end plates 2, 4, to screw the pile connecting bolt to these auxiliary members.
  • This auxiliary member will be constructed with auxiliary members 2A, 4A of the same shape as end plates 2, 4 disposed along the end plates 2, 4 of the upper pile 1 and the lower pile 3, as shown in Fig. 11, for example, and the auxiliary members 2A, 4A will be integrated with the end plates 2, 4 by welding or bolting, etc.
  • auxiliary members 2A, 4A having threaded hole different from that of the end plates 2, 4 on the end plates 2, 4 of the upper pile 1 and the lower pile 3 and enabling to screw the pile connecting bolts 6, 7 to these auxiliary members 2A, 4A, it becomes possible to freely change the diameter, number of pieces, etc. of the bolts used for the connection of piles, and to also improve the strength at the end of the piles.
  • the pile connecting structure according to the present invention has so far been explained based on a plurality of embodiments.
  • the present invention is not restricted to the constructions indicated in the embodiments described above, but may be changed in construction as required in the extent not deviating from its purpose, by either combining the constructions indicated in the respective embodiments, or connecting the upper pile 1 and the lower pile 3 and the connecting plate 5 in different positional relations, or fixing bolt-shaped projection to the end plate of the piles by welding, fitting, etc., in place of the bolts 6, 7 to be screwed to the end plates 2, 4 of the upper pile 1 and the lower pile 3, or extending the range of application widely to such objects as concrete piles provided with end plate at end portion, steel piles, SC piles, composite piles such as PRC piles, etc., for example, in addition to the prestressed concrete piles in the above-described embodiments.
  • the pile connecting structure of the present invention which is a pile connecting structure for connecting upper pile and lower pile to each other, by interposing a connecting plate of about the same diameter as the piles, at the connecting portion between the upper pile and the lower pile, and which enables to fix the end plates 2, 4 of the upper pile 1 and the lower pile 3 and the connecting plate 5 to each other, it becomes possible to perform the connection between upper pile 1 and lower pile 3 quickly and at low cost, without having any influence on the pile length because the thickness of the connecting portion can be kept comparatively small.
  • absence of any projection at the outer circumference of the piles makes it possible to bury the piles in the ground without putting any obstacle to the pile driving work, and execute the piles with high reliability and accuracy and efficiently.
  • connecting plate by splitting into a plurality of pieces, it becomes possible to reduce the shape of the unit component members constituting the connecting plate and reduce their weight, thus improving workability and ease of handling.

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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)
EP03250907A 2002-09-06 2003-02-14 Verbindungsschuh für Pfähle Withdrawn EP1403436A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002261448 2002-09-06
JP2002261448 2002-09-06

Publications (2)

Publication Number Publication Date
EP1403436A2 true EP1403436A2 (de) 2004-03-31
EP1403436A3 EP1403436A3 (de) 2005-11-23

Family

ID=31973129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03250907A Withdrawn EP1403436A3 (de) 2002-09-06 2003-02-14 Verbindungsschuh für Pfähle

Country Status (4)

Country Link
US (1) US20040047693A1 (de)
EP (1) EP1403436A3 (de)
KR (1) KR20040022138A (de)
RU (1) RU2003107341A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9739024B2 (en) 2013-08-21 2017-08-22 Chin Chai Ong End plate for concrete piles
CN112031010A (zh) * 2020-08-12 2020-12-04 罗仁富 一种建筑预应力吸收组成式连接插桩

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EP2265771A4 (de) * 2008-03-03 2013-11-13 Daniel Stark Turmfundamentsystem
US20100257794A1 (en) * 2009-04-10 2010-10-14 Stark N Daniel W Lateral support device
US20100322717A1 (en) * 2009-06-19 2010-12-23 Standard Concrete Products, Inc. Pile Splice Assemblies, Pile Systems Involving Such Assemblies and Methods for Splicing Piles
KR101174273B1 (ko) 2010-02-19 2012-08-16 최성희 콘크리트 말뚝의 이음장치
KR101194382B1 (ko) 2010-02-26 2012-10-24 최승선 콘크리트말뚝과 이를 위한 제조장치 및 제조방법
US8734058B1 (en) * 2013-12-05 2014-05-27 Harold F Schmidt Method of piling remediation for supporting girders and other structural members
US10844569B2 (en) 2015-05-11 2020-11-24 Pier Tech Systems, Llc Modular foundation support systems and methods including shafts with interlocking, self-aligning and torque transmitting couplings
US9506214B1 (en) 2015-05-11 2016-11-29 Pier Tech Systems, Llc Interlocking, self-aligning and torque transmitting coupler assembly
CN109322304A (zh) * 2018-11-08 2019-02-12 江苏隆兴建设工程有限公司 用于预应力抗拔桩的接头连接机构
CN110042831A (zh) * 2019-04-10 2019-07-23 浙江望达建材科技有限公司 桩体快接构造及其加工方法
MY206512A (en) * 2020-12-22 2024-12-19 Tan Tze Ken Kenny Pile mechanical joint with grooved locking protuberance/protuberances for easy locking pin/pins installation and its method of connecting segmented piles together
CN112900428A (zh) * 2021-01-07 2021-06-04 福建安捷工贸有限公司 一种改进型抗拔快速连接结构
KR102361415B1 (ko) * 2021-02-05 2022-02-14 김기형 내구성 및 체결력이 향상된 결합각도 조절형 옹벽 고정장치
CN115030213B (zh) * 2022-05-26 2023-04-11 上海勘测设计研究院有限公司 一种适用于海上风电基桩的工装以及应用方法
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Publication number Priority date Publication date Assignee Title
US9739024B2 (en) 2013-08-21 2017-08-22 Chin Chai Ong End plate for concrete piles
CN112031010A (zh) * 2020-08-12 2020-12-04 罗仁富 一种建筑预应力吸收组成式连接插桩

Also Published As

Publication number Publication date
EP1403436A3 (de) 2005-11-23
KR20040022138A (ko) 2004-03-11
RU2003107341A (ru) 2004-09-20
US20040047693A1 (en) 2004-03-11

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