JP2016191263A - Pile joint device - Google Patents

Pile joint device Download PDF

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JP2016191263A
JP2016191263A JP2015071959A JP2015071959A JP2016191263A JP 2016191263 A JP2016191263 A JP 2016191263A JP 2015071959 A JP2015071959 A JP 2015071959A JP 2015071959 A JP2015071959 A JP 2015071959A JP 2016191263 A JP2016191263 A JP 2016191263A
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fixing member
pile
engaging portion
engagement portion
engaging part
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JP6458601B2 (en
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一真 石川
Kazuma Ishikawa
一真 石川
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Japan Pile Corp
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Japan Pile Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a novel pile joint device capable of reducing bending moment working on a pile, for example, at the time of earthquake.SOLUTION: The pipe joint device includes a first fixed member, a second fixed member, a plurality of connection members, a first engaging part protruded from the first fixed member in the radial direction, and a second engaging part protruded from the second fixed member in the radial direction. Each of the plurality of connection members has a third engaging part engageable with the first engaging part, and a fourth engaging part engageable with the second engaging part. The second engaging part and the fourth engaging part each having a hook-shaped cross section can engage with each other in the radial and axial directions of the second fixed member, and the first engaging part and the third engaging part can engage with each other in the axial direction of the first fixed member. An interval between the third engaging part and the fourth engaging part is longer than the total of the lengths of the first engaging part and the second engaging part in the axial directions of the first fixed member and the second fixed member.SELECTED DRAWING: Figure 3

Description

本開示は杭継手装置に関する。   The present disclosure relates to a pile joint device.

特許文献１が開示する杭継手構造は、２つの杭の端部にそれぞれ固定された２つの端板と、２つの端板に当接する当接部を有する内リングと、内リングを囲繞する外リングとを有する。内リングと端板との間には隙間が設けられ、２つの杭は相対的に屈曲可能である。
一方、特許文献２が開示する杭頭結合構造は、既製杭の上端板に固定される基板と、基板から突設された補強鉄筋とを有する。 The pile joint structure disclosed in Patent Document 1 includes two end plates fixed to the end portions of two piles, an inner ring having an abutting portion that abuts against the two end plates, and an outer ring surrounding the inner ring. With a ring. A gap is provided between the inner ring and the end plate, and the two piles can be bent relatively.
On the other hand, the pile head coupling | bonding structure which patent document 2 discloses has the board | substrate fixed to the upper end board of a ready-made pile, and the reinforcement reinforcement projected from the board | substrate.

特開平７−１８９２４６号公報JP-A-7-189246 特開２００４−１６２３４６号公報JP 2004-162346 A

特許文献１が開示する杭の継手構造は、内リング及び外リングを有している。内リングの周囲に更に外リングを配置した場合、継手構造の外径が大きくなる。
一方、特許文献２が開示する杭頭結合構造では、基板及び補強鉄筋によって、上部構造体と杭との間の接合強度が増大されており、地震時には杭に大きな曲げモーメントが作用する。
上述の事情に鑑みて、本発明の少なくとも一実施形態の目的は、例えば地震時に、杭に作用する曲げモーメントを低減可能な新規な杭継手装置を提供することにある。 The pile joint structure disclosed in Patent Document 1 has an inner ring and an outer ring. When an outer ring is further arranged around the inner ring, the outer diameter of the joint structure increases.
On the other hand, in the pile head coupling structure disclosed in Patent Document 2, the bonding strength between the upper structure and the pile is increased by the substrate and the reinforcing reinforcing bars, and a large bending moment acts on the pile during an earthquake.
In view of the above circumstances, an object of at least one embodiment of the present invention is to provide a novel pile joint device that can reduce a bending moment acting on a pile, for example, during an earthquake.

（１）本発明の少なくとも一実施形態に係る杭継手装置は、
環形状を有し、杭の端部に固定可能な第１固定部材と、
環形状を有し、前記第１固定部材と同軸に配置可能な第２固定部材と、
前記第１固定部材及び前記第２固定部材の外周に沿って配置可能な複数の連結部材と、
前記第１固定部材から径方向に突出する第１係合部と、
前記第２固定部材から径方向に突出する第２係合部と、
を備え、
前記複数の連結部材の各々は、
前記第１係合部と係合可能な第３係合部と、
前記第２係合部と係合可能な第４係合部と、
を有し、
前記第２係合部及び前記第４係合部はそれぞれ鉤形の断面形状を有し、前記第２固定部材の径方向及び軸線方向にて相互に係合可能であり、
前記第１係合部及び前記第３係合部は、前記第１固定部材の軸線方向にて相互に係合可能であり、
前記第３係合部と前記第４係合部の間隔は、前記第１固定部材及び前記第２固定部材の軸線方向での前記第１係合部及び前記第２係合部の合計長さよりも長い。 (1) A pile joint device according to at least one embodiment of the present invention is:
A first fixing member having a ring shape and fixable to an end of the pile;
A second fixing member having an annular shape and capable of being arranged coaxially with the first fixing member;
A plurality of connecting members that can be arranged along outer peripheries of the first fixing member and the second fixing member;
A first engagement portion protruding in a radial direction from the first fixing member;
A second engagement portion protruding in a radial direction from the second fixing member;
With
Each of the plurality of connecting members is
A third engagement portion engageable with the first engagement portion;
A fourth engagement portion engageable with the second engagement portion;
Have
The second engaging portion and the fourth engaging portion each have a hook-shaped cross-sectional shape, and can be engaged with each other in the radial direction and the axial direction of the second fixing member,
The first engagement portion and the third engagement portion are engageable with each other in the axial direction of the first fixing member,
The distance between the third engaging portion and the fourth engaging portion is based on the total length of the first engaging portion and the second engaging portion in the axial direction of the first fixing member and the second fixing member. Also long.

上記構成（１）によれば、第３係合部と第４係合部の間隔が、第１固定部材及び第２固定部材の軸線方向での第１係合部及び前記第２係合部の合計長さよりも大きいので、第１固定部材と第２固定部材との間の距離又は角度が変化可能である。このため、例えば地震時に、杭に作用する曲げモーメントを低減することができる。   According to the configuration (1), the distance between the third engaging portion and the fourth engaging portion is such that the first engaging portion and the second engaging portion in the axial direction of the first fixing member and the second fixing member Therefore, the distance or angle between the first fixing member and the second fixing member can be changed. For this reason, the bending moment which acts on a pile at the time of an earthquake, for example can be reduced.

（２）幾つかの実施形態では、上記構成（１）において、
前記第１係合部及び前記第３係合部はそれぞれ鉤形の断面形状を有し、前記第１固定部材の径方向及び軸線方向にて相互に係合可能である。 (2) In some embodiments, in the configuration (1),
Each of the first engaging portion and the third engaging portion has a bowl-shaped cross-sectional shape, and can be engaged with each other in the radial direction and the axial direction of the first fixing member.

上記構成（２）によれば、第２係合部及び第４係合部が第２固定部材の径方向及び軸線方向にて相互に係合可能であるとともに、第１係合部及び第３係合部が第１固定部材の径方向及び軸線方向にて相互に係合可能であるので、第１固定部材及び第２固定部材を、連結部材を介して相互に確実に連結可能である。   According to the configuration (2), the second engagement portion and the fourth engagement portion can be engaged with each other in the radial direction and the axial direction of the second fixing member, and the first engagement portion and the third engagement portion can be engaged with each other. Since the engaging portion can be engaged with each other in the radial direction and the axial direction of the first fixing member, the first fixing member and the second fixing member can be reliably connected to each other via the connecting member.

（３）幾つかの実施形態では、上記構成（１）又は（２）において、
前記第１係合部と前記第３係合部との間に配置可能であり、前記第１固定部材と前記第２固定部材との間の距離又は角度が大きくなるほど大きな反力を発生させる弾性部材を更に備える。 (3) In some embodiments, in the configuration (1) or (2),
Elasticity that can be disposed between the first engaging portion and the third engaging portion, and generates a larger reaction force as the distance or angle between the first fixing member and the second fixing member increases. A member is further provided.

上記構成（３）によれば、第１固定部材に対し第２固定部材が傾斜したときに、傾斜が大きくなるほど弾性部材が圧縮される。このため、第１固定部材に対し第２固定部材が傾斜する過程で、弾性部材を介して、第１固定部材と第２固定部材との間で伝達される曲げモーメントを徐々に増大させることができる。この結果、杭継手装置や杭に作用する曲げモーメントの急激な上昇を抑制することができ、杭継手装置や杭の耐久性を確保することができる。   According to the configuration (3), when the second fixing member is inclined with respect to the first fixing member, the elastic member is compressed as the inclination is increased. For this reason, it is possible to gradually increase the bending moment transmitted between the first fixing member and the second fixing member via the elastic member in the process in which the second fixing member is inclined with respect to the first fixing member. it can. As a result, the rapid increase of the bending moment acting on the pile joint device or the pile can be suppressed, and the durability of the pile joint device or the pile can be ensured.

（４）幾つかの実施形態では、上記構成（３）において、
前記弾性部材はエラストマによって構成されている。
上記構成（４）によれば、エラストマによって構成された弾性部材を第１係合部と第３係合部の間に配置することで、第１係合部と第３係合部の間が異物で満たされることが防止される。これによって、第１係合部に対する第３係合部の相対的な変位が、異物によって阻害されることが防止される。 (4) In some embodiments, in the configuration (3),
The elastic member is made of an elastomer.
According to the configuration (4), the elastic member made of elastomer is disposed between the first engagement portion and the third engagement portion, so that the space between the first engagement portion and the third engagement portion is set. It is prevented from being filled with foreign matter. This prevents the relative displacement of the third engagement portion with respect to the first engagement portion from being hindered by foreign matter.

（５）幾つかの実施形態では、上記構成（１）乃至（４）の何れか１つにおいて、
前記杭の端部は、前記杭の中間部よりも小さい外径を有し、
前記連結部材は、前記杭の径方向にて前記杭の中間部の外周よりも内側に配置可能である。
上記構成（５）によれば、連結部材が杭の径方向にて杭の中間部の外周よりも内側に配置されるので、杭を孔に挿入するときに、孔の壁面と連結部材が摺動して連結部材が外れることが防止される。 (5) In some embodiments, in any one of the configurations (1) to (4),
The end of the pile has a smaller outer diameter than the intermediate portion of the pile,
The said connection member can be arrange | positioned inside the outer periphery of the intermediate part of the said pile in the radial direction of the said pile.
According to the configuration (5), since the connecting member is disposed inside the outer periphery of the intermediate portion of the pile in the radial direction of the pile, when the pile is inserted into the hole, the wall surface of the hole and the connecting member slide. It is prevented that the connecting member is detached by moving.

本発明の少なくとも一実施形態によれば、例えば地震時に、杭に作用する曲げモーメントを低減可能な新規な杭継手装置が提供される。   According to at least one embodiment of the present invention, a novel pile joint device capable of reducing a bending moment acting on a pile, for example, during an earthquake is provided.

本発明の一実施形態に係る構造体の概略的な構成を示す図である。It is a figure which shows schematic structure of the structure which concerns on one Embodiment of this invention. 杭の端部とともに一実施形態に係る杭継手装置を概略的に示す側面図である。It is a side view which shows roughly the pile joint apparatus which concerns on one Embodiment with the edge part of a pile. 図２中の領域ＩＩＩの概略的な部分断面図である。FIG. 3 is a schematic partial cross-sectional view of a region III in FIG. 2. 図２の杭継手装置に用いられる第２固定部材の概略的な上面図及び断面図である。It is the schematic top view and sectional drawing of the 2nd fixing member used for the pile coupling apparatus of FIG. 図２の杭継手装置に用いられる連結部材の概略的な上面図及び側面図である。It is the schematic top view and side view of a connection member used for the pile joint apparatus of FIG. 本発明の実施形態に係る杭継手装置の作用効果を説明するための図である。It is a figure for demonstrating the effect of the pile joint apparatus which concerns on embodiment of this invention. 他の一実施形態に係る杭継手装置の図３に対応する部分断面図である。It is a fragmentary sectional view corresponding to FIG. 3 of the pile joint apparatus which concerns on other one Embodiment. 他の一実施形態に係る杭継手装置の図３に対応する部分断面図である。It is a fragmentary sectional view corresponding to FIG. 3 of the pile joint apparatus which concerns on other one Embodiment. 他の一実施形態に係る杭継手装置の図３に対応する部分断面図である。It is a fragmentary sectional view corresponding to FIG. 3 of the pile joint apparatus which concerns on other one Embodiment. 杭の端部とともに他の一実施形態に係る杭継手装置を概略的に示す側面図である。It is a side view which shows roughly the pile joint apparatus which concerns on other one Embodiment with the edge part of a pile. 図１０中の領域ＸＩの概略的な部分断面図である。FIG. 11 is a schematic partial cross-sectional view of a region XI in FIG. 10.

以下、添付図面を参照して本発明の幾つかの実施形態について説明する。ただし、実施形態として記載されている又は図面に示されている構成部品の寸法、材質、形状、その相対的配置等は、本発明の範囲をこれに限定する趣旨ではなく、単なる説明例にすぎない。
例えば、「ある方向に」、「ある方向に沿って」、「平行」、「直交」、「中心」、「同心」或いは「同軸」等の相対的或いは絶対的な配置を表す表現は、厳密にそのような配置を表すのみならず、公差、若しくは、同じ機能が得られる程度の角度や距離をもって相対的に変位している状態も表すものとする。
例えば、「同一」、「等しい」及び「均質」等の物事が等しい状態であることを表す表現は、厳密に等しい状態を表すのみならず、公差、若しくは、同じ機能が得られる程度の差が存在している状態も表すものとする。
例えば、四角形状や円筒形状等の形状を表す表現は、幾何学的に厳密な意味での四角形状や円筒形状等の形状を表すのみならず、同じ効果が得られる範囲で、凹凸部や面取り部等を含む形状も表すものとする。
一方、一の構成要素を「備える」、「具える」、「具備する」、「含む」、又は、「有する」という表現は、他の構成要素の存在を除外する排他的な表現ではない。 Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples. Absent.
For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.
For example, an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.
For example, expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of the other constituent elements.

図１は、構造体１の概略的な構成を示す図である。構造体１は、複数の杭（既製杭）２と、杭２によって支持された上部構造体３と、杭２と上部構造体３とを接続するパイルキャップ４ａ及び基礎梁４ｂとを有する。
複数の杭２は、例えば、鉛直方向に配列されて列をなし、複数の杭２によって構成される列が水平方向に離間して並列に配置されている。 FIG. 1 is a diagram illustrating a schematic configuration of the structure 1. The structure 1 includes a plurality of piles (ready-made piles) 2, an upper structure 3 supported by the piles 2, and a pile cap 4 a and a foundation beam 4 b that connect the pile 2 and the upper structure 3.
For example, the plurality of piles 2 are arranged in the vertical direction to form a row, and the rows constituted by the plurality of piles 2 are arranged in parallel while being separated in the horizontal direction.

そして各列において、杭２同士は、本発明の実施形態に係る杭継手装置１０によって相互に連結されている。また、各列において最も上側に位置する杭２は、杭継手装置１０を介して基礎４に連結されている。   And in each row, piles 2 are mutually connected by pile joint device 10 concerning an embodiment of the present invention. Further, the pile 2 located on the uppermost side in each row is connected to the foundation 4 via the pile joint device 10.

図２及び図１０は、杭２の端部とともに杭継手装置１０（１０ａ，１０ｅ）を概略的に示す側面図である。図３、図７〜図９及び図１１は、杭継手装置１０（１０ａ〜１０ｅ）の概略的な部分断面図である。なお、図３及び図１１は、それぞれ、図２中の領域ＩＩＩ及び図１０中の領域ＸＩの概略的な部分断面図である。図４は、杭継手装置１０ａに用いられる第２固定部材の概略的な上面図及び断面図である。図５は、杭継手装置１０ａに用いられる連結部材の概略的な上面図及び側面図である。図６は、杭継手装置１０の作用効果を説明するための図である。
なお本明細書において、括弧の前の符号は、括弧内の符号のうち１つ以上を指すときに用いられる。 2 and 10 are side views schematically showing the pile joint device 10 (10a, 10e) together with the end portion of the pile 2. FIG. 3, FIG. 7 to FIG. 9 and FIG. 11 are schematic partial sectional views of the pile joint device 10 (10a to 10e). 3 and 11 are schematic partial cross-sectional views of the region III in FIG. 2 and the region XI in FIG. 10, respectively. FIG. 4 is a schematic top view and cross-sectional view of a second fixing member used in the pile joint device 10a. FIG. 5 is a schematic top view and side view of a connecting member used in the pile joint device 10a. FIG. 6 is a view for explaining the function and effect of the pile joint device 10.
In the present specification, the reference sign before the parentheses is used to indicate one or more of the reference signs in the parentheses.

図２〜図１１に示したように、杭継手装置１０は、第１固定部材１２と、第２固定部材１４と、複数の連結部材１６と、第１係合部１８と、第２係合部２０とを有する。
第１固定部材１２は、例えば鋼製であり、環形状を有し、杭２の端部に固定可能である。なお、第１固定部材１２が杭２の端部に固定可能であるとは、第１固定部材１２が杭２の端部を構成している場合も含むものとする。
第２固定部材１４は、例えば鋼製であり、環形状を有し、第１固定部材１２と同軸に配置可能である。なお、第２固定部材１４も、杭２の端部を構成していてもよい。 As shown in FIGS. 2 to 11, the pile joint device 10 includes a first fixing member 12, a second fixing member 14, a plurality of connecting members 16, a first engagement portion 18, and a second engagement. Part 20.
The first fixing member 12 is made of, for example, steel, has a ring shape, and can be fixed to the end of the pile 2. It should be noted that the fact that the first fixing member 12 can be fixed to the end of the pile 2 includes the case where the first fixing member 12 constitutes the end of the pile 2.
The second fixing member 14 is made of, for example, steel, has a ring shape, and can be arranged coaxially with the first fixing member 12. In addition, the 2nd fixing member 14 may also comprise the edge part of the pile 2. FIG.

複数の連結部材１６は、例えば鋼製であり、第１固定部材１２及び第２固定部材１４の外周に沿って配置可能である。従って、複数の連結部材１６は、全体として環形状を有し、第１固定部材１２及び第２固定部材１４を囲むように配置可能である。連結部材１６の数は特には限定されないが、例えば２〜１０個である。   The plurality of connecting members 16 are made of steel, for example, and can be arranged along the outer circumferences of the first fixing member 12 and the second fixing member 14. Accordingly, the plurality of connecting members 16 have a ring shape as a whole and can be arranged so as to surround the first fixing member 12 and the second fixing member 14. Although the number of the connection members 16 is not specifically limited, For example, it is 2-10 pieces.

第１係合部１８は、第１固定部材１２の径方向に沿って、第１固定部材１２から突出している。
第２係合部２０は、第２固定部材１４の径方向に沿って、第２固定部材１４から突出している。 The first engaging portion 18 protrudes from the first fixing member 12 along the radial direction of the first fixing member 12.
The second engaging portion 20 protrudes from the second fixing member 14 along the radial direction of the second fixing member 14.

複数の連結部材１６の各々は、第１係合部１８と係合可能な第３係合部２２と、第２係合部２０と係合可能な第４係合部２４と、を有する。例えば、連結部材１６は、湾曲した側板部２６を有し、第３係合部２２及び第４係合部２４は、側板部２６の一方の面（内周面）から内方に突出している。すなわち杭継手装置１０が組み立てられた状態で、側板部２６の内周面は第１固定部材１２及び第２固定部材１４と対向させられ、第３係合部２２及び第４係合部２４は、第１固定部材１２及び第２固定部材１４の径方向に沿って内側に向かって側板部２６から突出する。   Each of the plurality of connecting members 16 includes a third engagement portion 22 that can be engaged with the first engagement portion 18, and a fourth engagement portion 24 that can be engaged with the second engagement portion 20. For example, the connecting member 16 has a curved side plate portion 26, and the third engagement portion 22 and the fourth engagement portion 24 protrude inward from one surface (inner peripheral surface) of the side plate portion 26. . That is, with the pile joint device 10 assembled, the inner peripheral surface of the side plate portion 26 is opposed to the first fixing member 12 and the second fixing member 14, and the third engaging portion 22 and the fourth engaging portion 24 are The first fixing member 12 and the second fixing member 14 protrude from the side plate portion 26 inward along the radial direction.

第２係合部２０及び第４係合部２４はそれぞれ鉤形の断面形状を有し、第２固定部材１４の径方向及び軸線方向にて相互に係合可能である。
第１係合部１８及び第３係合部２２は、第１固定部材１２の軸線方向にて相互に係合可能である。
そして、第３係合部２２と第４係合部２４の間隔Ｇは、第１固定部材１２及び第２固定部材１４の軸線方向での第１係合部１８及び第２係合部２０の合計長さＬよりも大きい（Ｇ＞Ｌ）。なお、間隔Ｇは、第３係合部２２及び第４係合部２４によって規定される連結部材１６の凹部の開口幅である。 The second engaging portion 20 and the fourth engaging portion 24 each have a bowl-shaped cross-sectional shape, and can be engaged with each other in the radial direction and the axial direction of the second fixing member 14.
The first engaging portion 18 and the third engaging portion 22 can be engaged with each other in the axial direction of the first fixing member 12.
The distance G between the third engaging portion 22 and the fourth engaging portion 24 is such that the first engaging portion 18 and the second engaging portion 20 in the axial direction of the first fixing member 12 and the second fixing member 14. It is larger than the total length L (G> L). The interval G is the opening width of the concave portion of the connecting member 16 defined by the third engaging portion 22 and the fourth engaging portion 24.

上記構成によれば、第３係合部２２と第４係合部２４の間隔Ｇが、第１固定部材１２及び第２固定部材１４の軸線方向での第１係合部１８及び前記第２係合部２０の合計長さＬよりも大きいので、第１固定部材１２と第２固定部材１４が相互に同軸に当接した状態で、第２係合部２０と第４係合部２４を相互に係合させることができる。
一方、第３係合部２２と第４係合部２４の間隔Ｇが、第１固定部材１２及び第２固定部材１４の軸線方向での第１係合部１８及び前記第２係合部２０の合計長さＬよりも大きいので、第１固定部材１２と第２固定部材１４が相互に同軸に当接し、且つ、第２係合部２０と第４係合部２４が相互に係合した状態では、第１係合部１８と第３係合部２２との間に隙間２５が存在する。この隙間２５の存在により、第１固定部材１２は、第１固定部材１２の軸線方向にて連結部材１６に対し相対変位可能である。このため、第１固定部材１２と第２固定部材１４が連結部材１６を介して相互に連結された状態で、第１固定部材１２と第２固定部材１４との間の距離又は角度が変化可能である。すなわち、第１固定部材１２に対して第２固定部材１４が離れることができ、又は、図６に例示したように、第１固定部材１２に対し第２固定部材１４が傾くことができる。このため、例えば地震時に、杭２に作用する引き抜き力又は曲げモーメントを低減することができる。
なお引き抜き力は、上部構造体３が倒れようとするときに一部の列の杭２に作用し、曲げモーメントは、上部構造体３が水平方向に変位するときに全ての列の杭２に作用する。 According to the above configuration, the gap G between the third engagement portion 22 and the fourth engagement portion 24 is such that the first engagement portion 18 and the second engagement member in the axial direction of the first fixing member 12 and the second fixing member 14. Since it is larger than the total length L of the engaging portion 20, the second engaging portion 20 and the fourth engaging portion 24 are connected in a state where the first fixing member 12 and the second fixing member 14 are in coaxial contact with each other. They can be engaged with each other.
On the other hand, the gap G between the third engaging portion 22 and the fourth engaging portion 24 is set such that the first engaging portion 18 and the second engaging portion 20 in the axial direction of the first fixing member 12 and the second fixing member 14. Therefore, the first fixing member 12 and the second fixing member 14 are in coaxial contact with each other, and the second engaging portion 20 and the fourth engaging portion 24 are engaged with each other. In the state, a gap 25 exists between the first engagement portion 18 and the third engagement portion 22. Due to the presence of the gap 25, the first fixing member 12 can be displaced relative to the connecting member 16 in the axial direction of the first fixing member 12. Therefore, the distance or angle between the first fixing member 12 and the second fixing member 14 can be changed in a state where the first fixing member 12 and the second fixing member 14 are connected to each other via the connecting member 16. It is. That is, the second fixing member 14 can be separated from the first fixing member 12, or the second fixing member 14 can be inclined with respect to the first fixing member 12 as illustrated in FIG. 6. For this reason, the pulling-out force or bending moment which acts on the pile 2 can be reduced, for example at the time of an earthquake.
The pull-out force acts on the piles 2 in some rows when the upper structure 3 is about to fall down, and the bending moment acts on the piles 2 in all rows when the upper structure 3 is displaced in the horizontal direction. Works.

更に、上記構成によれば、第１固定部材１２及び第２固定部材１４が同軸にて当接して配置された状態で、連結部材１６を引っ掛けるのみで、連結部材１６を介して第１固定部材１２と第２固定部材１４を容易に連結することができる。
なお、杭継手装置１０の通常の使用態様では、第１固定部材１２及び第２固定部材１４は上下方向に配列され、第１固定部材１２が下方に配置され、第２固定部材１４が上方に配置される。 Furthermore, according to the above-described configuration, the first fixing member 12 and the second fixing member 14 are arranged so as to be in contact with each other on the same axis. 12 and the 2nd fixing member 14 can be connected easily.
In the normal usage mode of the pile joint device 10, the first fixing member 12 and the second fixing member 14 are arranged in the vertical direction, the first fixing member 12 is disposed below, and the second fixing member 14 is upward. Be placed.

幾つかの実施形態では、第１固定部材１２に対する第２固定部材１４の傾きの最大値が５．７度以下になるように、隙間２５の形状又は寸法が決定される。なお、５．７度は、１／１０の勾配に相当する（５．７°≒ｔａｎ−１１／１０）。 In some embodiments, the shape or size of the gap 25 is determined so that the maximum value of the inclination of the second fixing member 14 with respect to the first fixing member 12 is 5.7 degrees or less. Note that 5.7 degrees corresponds to a gradient of 1/10 (5.7 ° ≈tan −1 1/10).

幾つかの実施形態では、杭継手装置１０ａ〜１０ｄは、２つの杭（第１杭及び第２杭）２を相互に同軸に連結し、第２固定部材１４は杭２の端部に固定可能である。なお、第２固定部材１４が杭２の端部に固定可能であるとは、第２固定部材１４が杭２の端部を構成している場合も含むものとする。
この場合、図５に例示したように、杭継手装置１０ａ〜１０ｄによって相互に連結された２つの杭２が相互に離れたり又は傾くことができ、例えば地震時に、第１固定部材１２及び第２固定部材１４が固定された２つの杭２に作用する引き抜き力や曲げモーメントを低減することができる。 In some embodiments, the pile joint devices 10a to 10d connect two piles (first pile and second pile) 2 coaxially with each other, and the second fixing member 14 can be fixed to the end of the pile 2. It is. It should be noted that the fact that the second fixing member 14 can be fixed to the end portion of the pile 2 includes the case where the second fixing member 14 constitutes the end portion of the pile 2.
In this case, as illustrated in FIG. 5, the two piles 2 connected to each other by the pile joint devices 10 a to 10 d can be separated from each other or tilted. The pulling-out force and bending moment which act on the two piles 2 to which the fixing member 14 is fixed can be reduced.

幾つかの実施形態では、図１０及び図１１に示したように、杭継手装置１０ｅは、杭２とパイルキャップ４ａとを相互に連結しており、杭頭結合装置を構成している。この場合、第２固定部材１４は、例えば鋼管４９によって構成され、第２固定部材１４には、杭ではなく、上部構造体３の一部をなす複数の鉄筋２７が、例えば溶接により固定される。
この構成では、例えば地震時に、上部構造体３が倒れようとしても第２固定部材１４に対し第１固定部材１２が離れることができ、第１固定部材１２が固定された杭２に作用する引き抜き力を低減することができる。
またこの構成では、例えば地震時に、上部構造体３が水平方向に揺れても第２固定部材１４に対し第１固定部材１２が傾くことができ、第１固定部材１２が固定された杭２、第２固定部材１４が固定されたパイルキャップ４ａ、及び、パイルキャップ４ａに接合された基礎梁４ｂに作用する曲げモーメントを低減することができる。 In some embodiments, as shown in FIGS. 10 and 11, the pile joint device 10 e connects the pile 2 and the pile cap 4 a to each other to form a pile head coupling device. In this case, the 2nd fixing member 14 is comprised by the steel pipe 49, for example, and not the pile but the some rebar 27 which makes a part of the upper structure 3 is fixed to the 2nd fixing member 14 by welding, for example. .
In this configuration, for example, in the event of an earthquake, even if the upper structure 3 is about to fall down, the first fixing member 12 can be separated from the second fixing member 14, and the pull-out acting on the pile 2 to which the first fixing member 12 is fixed. The force can be reduced.
Further, in this configuration, for example, during an earthquake, the first fixing member 12 can be tilted with respect to the second fixing member 14 even if the upper structure 3 shakes in the horizontal direction, and the pile 2 to which the first fixing member 12 is fixed, The bending moment acting on the pile cap 4a to which the second fixing member 14 is fixed and the foundation beam 4b joined to the pile cap 4a can be reduced.

幾つかの実施形態では、図４に示したように、第２係合部２０は、第２固定部材１４から径方向外側に一体に突出する環状の第２鍔部２８と、第２鍔部２８の外周縁から軸線方向上側に一体に突出する第２環状部３０によって構成される。
そして、図５に示したように、第４係合部２４は、連結部材１６の側板部２６から径方向内側に一体に突出する環状の第４鍔部３２と、第４鍔部３２の内周縁から軸線方向下側に一体に突出する第４環状部３４によって構成される。
この場合、第２固定部材１４の軸線と直交する面にそれぞれ沿う第２環状部３０の環状面３０ａと第４鍔部３２の環状面３２ａが当接することによって、第２係合部２０と第４係合部２４が軸線方向に係合する。そして、第２固定部材１４の軸線方向及び周方向に延在する第２環状部３０の内周面３０ｂと、同じく軸線方向及び周方向に延在する第４環状部３４の外周面３４ａが相互に当接することによって、第２係合部２０と第４係合部２４が径方向に係合する。更に、第２固定部材１４の軸線方向及び周方向に延在する第２環状部３０の外周面３０ｃと、同じく軸線方向及び周方向に延在する側板部２６の内周面２６ａが相互に当接することによって、第２係合部２０と第４係合部２４が径方向に係合する。 In some embodiments, as shown in FIG. 4, the second engagement portion 20 includes an annular second collar portion 28 that integrally projects radially outward from the second fixing member 14, and a second collar portion. It is comprised by the 2nd annular part 30 which protrudes integrally from the outer periphery of 28 to an axial direction upper side.
As shown in FIG. 5, the fourth engaging portion 24 includes an annular fourth collar portion 32 that integrally projects radially inward from the side plate portion 26 of the connecting member 16, and an inner portion of the fourth collar portion 32. It is comprised by the 4th cyclic | annular part 34 which protrudes integrally from the periphery to the axial direction lower side.
In this case, the annular surface 30a of the second annular portion 30 and the annular surface 32a of the fourth flange portion 32 that are respectively along the surface orthogonal to the axis of the second fixing member 14 come into contact with each other, so The four engaging portions 24 are engaged in the axial direction. The inner peripheral surface 30b of the second annular portion 30 extending in the axial direction and the circumferential direction of the second fixing member 14 and the outer peripheral surface 34a of the fourth annular portion 34 extending in the axial direction and the circumferential direction are mutually connected. The second engagement portion 20 and the fourth engagement portion 24 are engaged in the radial direction. Furthermore, the outer peripheral surface 30c of the second annular portion 30 that extends in the axial direction and the circumferential direction of the second fixing member 14 and the inner peripheral surface 26a of the side plate portion 26 that also extends in the axial direction and the circumferential direction are in contact with each other. By making contact, the second engaging portion 20 and the fourth engaging portion 24 are engaged in the radial direction.

幾つかの実施形態では、図３に示したように、第１係合部１８は、第１固定部材１２から径方向外側に一体に突出する環状の第１鍔部３６によって構成される。
そして、図３及び図５に示したように、第３係合部２２は、側板部２６から径方向内側に突出する第３鍔部３８によって構成される。
この場合、第１鍔部３６と第３鍔部３８が当接することによって、第１係合部１８と第３係合部２２が軸線方向に係合する。 In some embodiments, as shown in FIG. 3, the first engaging portion 18 is constituted by an annular first flange portion 36 that integrally protrudes radially outward from the first fixing member 12.
As shown in FIGS. 3 and 5, the third engagement portion 22 is configured by a third flange portion 38 that protrudes radially inward from the side plate portion 26.
In this case, the first hook portion 36 and the third hook portion 38 are brought into contact with each other, whereby the first engagement portion 18 and the third engagement portion 22 are engaged in the axial direction.

幾つかの実施形態では、第１係合部１８及び第３係合部２２は、第１固定部材の径方向及び軸線方向にて相互に係合可能である。
上記構成によれば、第２係合部２０及び第４係合部２４が第２固定部材１４の径方向及び軸線方向にて相互に係合可能であるとともに、第１係合部１８及び第３係合部２２が第１固定部材１２の径方向及び軸線方向にて相互に係合可能であるので、第１固定部材１２及び第２固定部材１４を、連結部材１６を介して相互に確実に連結可能である。 In some embodiments, the first engaging portion 18 and the third engaging portion 22 can be engaged with each other in the radial direction and the axial direction of the first fixing member.
According to the above configuration, the second engagement portion 20 and the fourth engagement portion 24 can be engaged with each other in the radial direction and the axial direction of the second fixing member 14, and the first engagement portion 18 and the first engagement portion 18 can be engaged with each other. Since the three engaging portions 22 can be engaged with each other in the radial direction and the axial direction of the first fixing member 12, the first fixing member 12 and the second fixing member 14 are reliably connected to each other via the connecting member 16. Can be linked to.

幾つかの実施形態では、図７に示したように、第１係合部１８は第２係合部２０と同じ形状を有し、鉤形の断面形状を有している。すなわち、第１係合部１８は、第１固定部材１２から径方向外側に一体に突出する環状の第１鍔部３６と、第１鍔部３６の外周縁から軸線方向に一体に突出する第１環状部４０よって構成される。
そして、図７に示したように、第３係合部２２は第４係合部２４と同じ形状を有し、鉤形の断面形状を有している。すなわち、第３係合部２２は、側板部２６から径方向内側に突出する第３鍔部３８と、第３鍔部３８の内周縁から軸線方向に一体に突出する第３環状部４２によって構成される。
この構成によれば、第１係合部１８及び第３係合部２２が鉤形の断面形状を有するので、第１係合部１８及び第３係合部２２が第１固定部材１２の軸線方向及び径方向にて確実に係合可能である。 In some embodiments, as shown in FIG. 7, the first engagement portion 18 has the same shape as the second engagement portion 20 and has a bowl-shaped cross-sectional shape. That is, the first engaging portion 18 includes an annular first flange 36 that integrally protrudes radially outward from the first fixing member 12, and a first protrusion that protrudes integrally in the axial direction from the outer peripheral edge of the first flange 36. A single annular portion 40 is used.
And as shown in FIG. 7, the 3rd engaging part 22 has the same shape as the 4th engaging part 24, and has a hook-shaped cross-sectional shape. That is, the third engaging portion 22 is configured by a third flange portion 38 that protrudes radially inward from the side plate portion 26 and a third annular portion 42 that integrally protrudes in the axial direction from the inner peripheral edge of the third flange portion 38. Is done.
According to this configuration, since the first engagement portion 18 and the third engagement portion 22 have a bowl-shaped cross-sectional shape, the first engagement portion 18 and the third engagement portion 22 are axes of the first fixing member 12. Engagement is possible reliably in the direction and radial direction.

幾つかの実施形態では、図８に示したように、第１鍔部３６の環状面３６ａは、第１固定部材１２から径方向外側に向かって延在し、第３鍔部３８と軸線方向に対向している。そして、第１鍔部３６の環状面３６ａは、径方向外側に向かうにしたがって第１鍔部３６の厚さが厚くなるようなテーパ面によって構成されている。一方、第３鍔部３８の環状面３８ａは、側板部２６から径方向内側に向かって延在し、第１鍔部３６と軸線方向に対向している。そして、第３鍔部３８の環状面３８ａは、径方向外側に向かうにしたがって第３鍔部３８の厚さが薄くなるようなテーパ面によって構成されている。
この構成によれば、第１係合部１８のテーパ面と第３係合部２２のテーパ面、すなわち第１鍔部３６の環状面３６ａと第３鍔部３８の環状面３８ａが相互に当接することで、第１係合部１８及び第３係合部２２が第１固定部材１２の軸線方向及び径方向にて確実に係合可能である。 In some embodiments, as shown in FIG. 8, the annular surface 36 a of the first flange 36 extends radially outward from the first fixing member 12, and is axially aligned with the third flange 38. Opposite to. And the annular surface 36a of the 1st collar part 36 is comprised by the taper surface that the thickness of the 1st collar part 36 becomes thick as it goes to radial direction outer side. On the other hand, the annular surface 38a of the third flange portion 38 extends radially inward from the side plate portion 26 and faces the first flange portion 36 in the axial direction. And the annular surface 38a of the 3rd collar part 38 is comprised by the taper surface which the thickness of the 3rd collar part 38 becomes thin as it goes to radial direction outer side.
According to this configuration, the tapered surface of the first engaging portion 18 and the tapered surface of the third engaging portion 22, that is, the annular surface 36 a of the first flange portion 36 and the annular surface 38 a of the third flange portion 38 contact each other. By contacting, the first engaging portion 18 and the third engaging portion 22 can be reliably engaged in the axial direction and the radial direction of the first fixing member 12.

幾つかの実施形態では、図９に示したように、杭継手装置１０ｄは弾性部材４４を更に備えている。弾性部材４４は、第１係合部１８と第３係合部２２との間に配置可能であり、第１固定部材１２と第２固定部材１４との間の距離又は角度が大きくなるほど大きな反力を発生させる。   In some embodiments, as shown in FIG. 9, the pile joint device 10 d further includes an elastic member 44. The elastic member 44 can be disposed between the first engaging portion 18 and the third engaging portion 22, and the larger the distance or angle between the first fixing member 12 and the second fixing member 14, the larger the reaction. Generate power.

上記構成によれば、第１固定部材１２に対し第２固定部材１４が離れたり又は傾斜したときに、距離又は傾斜角度が大きくなるほど弾性部材４４が大きな反力を発生させる。このため、第１固定部材１２に対し第２固定部材１４が離れたり傾斜する過程で、弾性部材４４を介して、第１係合部１８、第２係合部２０、第３係合部２２及び第４係合部２４に働く剪断力を徐々に増大させることができ、第１固定部材１２と第２固定部材１４との間で伝達される引き抜き力又は曲げモーメントを徐々に増大させることができる。この結果、杭継手装置１０ｄに作用する力や杭２に作用する引き抜き力又は曲げモーメントの急激な上昇を抑制することができ、杭継手装置１０ｄや杭２の耐久性を確保することができる。   According to the above configuration, when the second fixing member 14 is separated or inclined with respect to the first fixing member 12, the elastic member 44 generates a larger reaction force as the distance or the inclination angle increases. For this reason, in the process in which the second fixing member 14 is separated or inclined with respect to the first fixing member 12, the first engaging portion 18, the second engaging portion 20, and the third engaging portion 22 are interposed via the elastic member 44. Further, the shearing force acting on the fourth engaging portion 24 can be gradually increased, and the pulling force or bending moment transmitted between the first fixing member 12 and the second fixing member 14 can be gradually increased. it can. As a result, the force acting on the pile joint device 10d and the pulling force or bending moment acting on the pile 2 can be suppressed, and the durability of the pile joint device 10d and the pile 2 can be ensured.

幾つかの実施形態では、弾性部材４４は、図９に示したように、エラストマによって構成され、例えばクロロプレンゴムによって構成される。
この構成によれば、エラストマによって構成された弾性部材４４を第１係合部１８と第３係合部２２との間の隙間２５に配置することで、隙間２５が異物で満たされることが防止される。これによって、第１係合部１８に対する第３係合部２２の相対的な変位が、異物によって阻害されることが防止される。
幾つかの実施形態では、弾性部材４４はばねによって構成される。 In some embodiments, the elastic member 44 is made of an elastomer, such as chloroprene rubber, as shown in FIG.
According to this configuration, the elastic member 44 made of elastomer is disposed in the gap 25 between the first engagement portion 18 and the third engagement portion 22, thereby preventing the gap 25 from being filled with foreign matter. Is done. This prevents the relative displacement of the third engagement portion 22 with respect to the first engagement portion 18 from being hindered by foreign matter.
In some embodiments, the elastic member 44 comprises a spring.

幾つかの実施形態では、図３、図７〜図９に示したように、第１固定部材１２、第２固定部材１４、及び、必要に応じて第１固定部材１２又は第２固定部材１４に隣接する杭２の端部５０の部分は、杭２の中間部５２よりも小さい外径を有し、連結部材１６は、杭２の径方向にて杭２の中間部５２の外周よりも内側に配置可能である。
上記構成によれば、連結部材１６が杭の径方向にて杭の中間部５２の外周よりも内側に配置されるので、杭２を孔に挿入するときに、孔の壁面と連結部材１６が摺動して連結部材１６が外れることが防止される。 In some embodiments, as shown in FIGS. 3 and 7-9, the first fixing member 12, the second fixing member 14, and the first fixing member 12 or the second fixing member 14 as required. The part of the end part 50 of the pile 2 adjacent to the outer diameter of the intermediate part 52 of the pile 2 is smaller than the outer diameter of the intermediate part 52 of the pile 2 in the radial direction of the pile 2. It can be placed inside.
According to the said structure, since the connection member 16 is arrange | positioned inside the outer periphery of the intermediate part 52 of a pile in the radial direction of a pile, when inserting the pile 2 in a hole, the wall surface of a hole and the connection member 16 are. It is prevented that the connecting member 16 is detached by sliding.

幾つかの実施形態では、図９に示したように、杭継手装置１０ｄは、外れ止め部材４６を更に備える。外れ止め部材４６は、第２固定部材１４の軸線方向にて係合を解除する方向での連結部材１６の相対的な移動を規制する。
この構成によれば、連結部材１６が外れることが確実に防止される。 In some embodiments, as shown in FIG. 9, the pile joint apparatus 10 d further includes a locking member 46. The locking member 46 restricts the relative movement of the connecting member 16 in the direction in which the engagement is released in the axial direction of the second fixing member 14.
According to this configuration, the connecting member 16 is reliably prevented from coming off.

幾つかの実施形態では、複数の杭２によって構成される列において、図１に示したように、上側の杭２はＳＣ杭（外殻鋼管付きコンクリート杭）２ａによって構成され、中間の杭２はＰＲＣ杭（高強度プレストレスト鉄筋コンクリート杭）２ｂによって構成され、下側の杭２はＰＨＣ杭（高強度プレストレストコンクリート杭）２ｃによって構成される。曲げモーメントに対する強度は、ＳＣ杭２ａ＞ＰＲＣ杭２ｂ＞ＰＨＣ杭２ｃの順である。   In some embodiments, in a row constituted by a plurality of piles 2, as shown in FIG. 1, the upper pile 2 is constituted by an SC pile (concrete pile with a shell steel pipe) 2a, and an intermediate pile 2 Is constituted by a PRC pile (high strength prestressed reinforced concrete pile) 2b, and the lower pile 2 is constituted by a PHC pile (high strength prestressed concrete pile) 2c. The strength against the bending moment is in the order of SC pile 2a> PRC pile 2b> PHC pile 2c.

幾つかの実施形態では、杭２は、図３及び図７〜図９に示したように、いわゆる既製コンクリート杭であり、円筒形状のコンクリート６０と、コンクリート６０の両端に配置された端板６２と、コンクリート６０を貫通して端板６２間を延びる複数のＰＣ鋼棒６４と、コンクリート６０の端部を囲む補強バンド６５とを有する。ＰＣ鋼棒６４及び端板６２によってコンクリート６０に圧縮応力が与えられている。そして、端板６２が、第１固定部材１２又は第２固定部材１４を構成している。
幾つかの実施形態では、図１１に示したように、杭２がＳＣ杭２ａの場合、補強バンド６５に代えて、コンクリート６０の全体が外殻鋼管６８によって覆われ、端板６２が外殻鋼管６８に溶接される。
なお、既製杭２の構成は上記構成に限定されることはない。 In some embodiments, the pile 2 is a so-called ready-made concrete pile, as shown in FIGS. 3 and 7 to 9, and the cylindrical concrete 60 and end plates 62 arranged at both ends of the concrete 60. And a plurality of PC steel bars 64 extending through the concrete 60 and extending between the end plates 62, and a reinforcing band 65 surrounding the end of the concrete 60. A compressive stress is applied to the concrete 60 by the PC steel bar 64 and the end plate 62. The end plate 62 constitutes the first fixing member 12 or the second fixing member 14.
In some embodiments, as shown in FIG. 11, when the pile 2 is the SC pile 2a, the entire concrete 60 is covered with the outer steel pipe 68 instead of the reinforcing band 65, and the end plate 62 is the outer shell. It is welded to the steel pipe 68.
In addition, the structure of the ready-made pile 2 is not limited to the said structure.

幾つかの実施形態では、第１固定部材１２及び第２固定部材１４と連結部材１６との間には、第１固定部材１２と第２固定部材１４との間の距離又は角度の変化を許容するように径方向に隙間が設けられる。   In some embodiments, a change in the distance or angle between the first fixing member 12 and the second fixing member 14 is allowed between the first fixing member 12 and the second fixing member 14 and the connecting member 16. Thus, a gap is provided in the radial direction.

最後に、本発明は上述した幾つかの実施形態に限定されることはなく、上述した実施形態に変形を加えた形態や、これらの形態を適宜組み合わせた形態も含む。   Finally, the present invention is not limited to the above-described embodiments, and includes forms obtained by modifying the above-described embodiments and forms obtained by appropriately combining these forms.

１ 構造体
２ 杭（既製杭）
２ａ ＳＣ杭
２ｂ ＰＲＣ杭
２ｃ ＰＨＣ杭
３ 上部構造体
４ａ パイルキャップ
４ｂ 基礎梁
５ 上部構造体
１０（１０ａ〜１０ｅ） 杭継手装置
１２ 第１固定部材
１４ 第２固定部材
１６ 連結部材
１８ 第１係合部
２０ 第２係合部
２２ 第３係合部
２４ 第４係合部
２５ 隙間
２６ 側板部
２６ａ 内周面
２７ 鉄筋
２８ 第２鍔部
３０ 第２環状部
３０ａ 環状面
３０ｂ 内周面
３０ｃ 外周面
３２ 第４鍔部
３２ａ 環状面
３４ 第４環状部
３４ａ 外周面
３６ 第１鍔部
３６ａ 環状面
３８ 第３鍔部
３８ａ 環状面
４０ 第１環状部
４２ 第３環状部
４４ 弾性部材
４６ 外れ止め部材
４９ 鋼管
５０ 杭の端部
５２ 杭の中間部
６０ コンクリート
６２ 端板
６４ ＰＣ鋼棒
６５ 補強バンド
６８ 外殻鋼管 1 structure 2 pile (ready-made pile)
2a SC pile 2b PRC pile 2c PHC pile 3 Upper structure 4a Pile cap 4b Foundation beam 5 Upper structure 10 (10a to 10e) Pile joint device 12 First fixing member 14 Second fixing member 16 Connecting member 18 First engagement Part 20 Second engaging part 22 Third engaging part 24 Fourth engaging part 25 Gap 26 Side plate part 26a Inner peripheral surface 27 Reinforcing bar 28 Second flange 30 Second annular part 30a Annular surface 30b Inner peripheral surface 30c Outer peripheral surface 32 4th collar part 32a annular surface 34 4th annular part 34a outer peripheral surface 36 1st collar part 36a annular surface 38 3rd collar part 38a annular surface 40 1st annular part 42 3rd annular part 44 elastic member 46 slip-off preventing member 49 Steel pipe 50 Pile end 52 Pile middle part 60 Concrete 62 End plate 64 PC steel bar 65 Reinforcement band 68 Outer shell steel pipe

Claims (5)

環形状を有し、杭の端部に固定可能な第１固定部材と、
環形状を有し、前記第１固定部材と同軸に配置可能な第２固定部材と、
前記第１固定部材及び前記第２固定部材の外周に沿って配置可能な複数の連結部材と、
前記第１固定部材から径方向に突出する第１係合部と、
前記第２固定部材から径方向に突出する第２係合部と、
を備え、
前記複数の連結部材の各々は、
前記第１係合部と係合可能な第３係合部と、
前記第２係合部と係合可能な第４係合部と、
を有し、
前記第２係合部及び前記第４係合部はそれぞれ鉤形の断面形状を有し、前記第２固定部材の径方向及び軸線方向にて相互に係合可能であり、
前記第１係合部及び前記第３係合部は、前記第１固定部材の軸線方向にて相互に係合可能であり、
前記第３係合部と前記第４係合部の間隔は、前記第１固定部材及び前記第２固定部材の軸線方向での前記第１係合部及び前記第２係合部の合計長さよりも長い
ことを特徴とする杭継手装置。 A first fixing member having a ring shape and fixable to an end of the pile;
A second fixing member having an annular shape and capable of being arranged coaxially with the first fixing member;
A plurality of connecting members that can be arranged along outer peripheries of the first fixing member and the second fixing member;
A first engagement portion protruding in a radial direction from the first fixing member;
A second engagement portion protruding in a radial direction from the second fixing member;
With
Each of the plurality of connecting members is
A third engagement portion engageable with the first engagement portion;
A fourth engagement portion engageable with the second engagement portion;
Have
The second engaging portion and the fourth engaging portion each have a hook-shaped cross-sectional shape, and can be engaged with each other in the radial direction and the axial direction of the second fixing member,
The first engagement portion and the third engagement portion are engageable with each other in the axial direction of the first fixing member,
The distance between the third engaging portion and the fourth engaging portion is based on the total length of the first engaging portion and the second engaging portion in the axial direction of the first fixing member and the second fixing member. Pile joint device characterized by its long length. 前記第１係合部及び前記第３係合部はそれぞれ鉤形の断面形状を有し、前記第１固定部材の径方向及び軸線方向にて相互に係合可能である
ことを特徴とする請求項１に記載の杭継手装置。 The first engaging portion and the third engaging portion each have a bowl-shaped cross-sectional shape, and can be engaged with each other in a radial direction and an axial direction of the first fixing member. Item 2. The pile joint device according to Item 1. 前記第１係合部と前記第３係合部との間に配置可能であり、前記第１固定部材と前記第２固定部材との間の距離又は角度が大きくなるほど大きな反力を発生させる弾性部材を更に備える
ことを特徴とする請求項１又は２に記載の杭継手装置。 Elasticity that can be disposed between the first engaging portion and the third engaging portion, and generates a larger reaction force as the distance or angle between the first fixing member and the second fixing member increases. The pile joint device according to claim 1, further comprising a member. 前記弾性部材はエラストマによって構成されている
ことを特徴とする請求項３に記載の杭継手装置。 The pile joint device according to claim 3, wherein the elastic member is made of an elastomer. 前記杭の端部は、前記杭の中間部よりも小さい外径を有し、
前記連結部材は、前記杭の径方向にて前記杭の中間部の外周よりも内側に配置可能である
ことを特徴とする請求項１乃至４の何れか１項に記載の杭継手装置。 The end of the pile has a smaller outer diameter than the intermediate portion of the pile,
The pile joint device according to any one of claims 1 to 4, wherein the connecting member can be arranged inside the outer periphery of the intermediate portion of the pile in the radial direction of the pile.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195330U (en) * 1984-05-31 1985-12-26 株式会社竹中工務店 Connection structure of ready-made piles
JPH07189246A (en) * 1993-12-27 1995-07-28 Shintoku Kogyo Kk Joint structure of pile
JP2004052464A (en) * 2002-07-23 2004-02-19 Grand Form:Kk Coupling device for rising beam
JP2007016446A (en) * 2005-07-06 2007-01-25 Shintoku Kogyo Kk Connection structure of concrete pile
JP2008115543A (en) * 2006-11-01 2008-05-22 Japan Life Kk Pile head connecting structure
JP2008231732A (en) * 2007-03-19 2008-10-02 Maeda Seikan Kk Joint structure of pile
JP2011026879A (en) * 2009-07-28 2011-02-10 Japan Pile Corp Method for increasing shearing strength of prefabricated concrete pile
US20140270981A1 (en) * 2013-02-15 2014-09-18 Henry Whitty, Sr. System and method for splicing precast pre-stressed concrete piles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195330U (en) * 1984-05-31 1985-12-26 株式会社竹中工務店 Connection structure of ready-made piles
JPH07189246A (en) * 1993-12-27 1995-07-28 Shintoku Kogyo Kk Joint structure of pile
JP2004052464A (en) * 2002-07-23 2004-02-19 Grand Form:Kk Coupling device for rising beam
JP2007016446A (en) * 2005-07-06 2007-01-25 Shintoku Kogyo Kk Connection structure of concrete pile
JP2008115543A (en) * 2006-11-01 2008-05-22 Japan Life Kk Pile head connecting structure
JP2008231732A (en) * 2007-03-19 2008-10-02 Maeda Seikan Kk Joint structure of pile
JP2011026879A (en) * 2009-07-28 2011-02-10 Japan Pile Corp Method for increasing shearing strength of prefabricated concrete pile
US20140270981A1 (en) * 2013-02-15 2014-09-18 Henry Whitty, Sr. System and method for splicing precast pre-stressed concrete piles

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