JP6905398B2 - Joining structure of foundation pile and steel foundation beam and its joining method - Google Patents

Joining structure of foundation pile and steel foundation beam and its joining method Download PDF

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JP6905398B2
JP6905398B2 JP2017122237A JP2017122237A JP6905398B2 JP 6905398 B2 JP6905398 B2 JP 6905398B2 JP 2017122237 A JP2017122237 A JP 2017122237A JP 2017122237 A JP2017122237 A JP 2017122237A JP 6905398 B2 JP6905398 B2 JP 6905398B2
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pile head
pile
joining
pedestal portion
joining member
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JP2019007192A (en
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勝浩 森川
勝浩 森川
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Daiwa House Industry Co Ltd
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本発明は、基礎杭と鋼製基礎梁とを接合部材を介して接合した接合構造およびその接合方法に関する。 The present invention relates to a joining structure in which a foundation pile and a steel foundation beam are joined via a joining member, and a joining method thereof.

従来から、基礎杭に対して鋼製基礎梁が接合された接合構造が採用されている。たとえば、特許文献１には、鋼製主柱が上面に立設される鋼製基礎梁と、鋼製主柱の下で地盤に圧入された鋼管杭と、鋼管杭の上端と鋼製基礎梁の間に介在して両者を接合する接合金物（接合部材）とを備えた接合構造が提案されている。 Conventionally, a joint structure in which a steel foundation beam is joined to a foundation pile has been adopted. For example, Patent Document 1 describes a steel foundation beam in which a steel main column is erected on the upper surface, a steel pipe pile press-fitted into the ground under the steel main column, an upper end of the steel pipe pile, and a steel foundation beam. A joining structure including a joining metal fitting (joining member) that joins the two by interposing between the two has been proposed.

この接合構造では、接合部材は、鋼製基礎梁を載せる台座部と、この台座部の下面に突出して鋼管基礎杭（基礎杭）の上端の内部に隙間をもって嵌まる嵌まり込み部と、を有している。基礎杭と接合部材とは、接合部材の高さ調整した後、鋼管杭の外周壁に穿設した貫通孔にボルトを挿通し、このボルトを嵌まり込み部の雌ねじ部に締め込むことにより固定されている。さらに、鋼製基礎梁と接合部材とに形成された長円状のルーズ孔を利用して、鋼製基礎梁の水平方向の位置合わせを行った後、ルーズ孔にボルトを挿通し、これにナットを締め込んで、鋼製基礎梁と接合部材が固定されている。 In this joining structure, the joining member includes a pedestal on which a steel foundation beam is placed and a fitting portion that protrudes from the lower surface of the pedestal and fits inside the upper end of the steel pipe foundation pile (foundation pile) with a gap. Have. After adjusting the height of the joint member, the foundation pile and the joint member are fixed by inserting a bolt into the through hole drilled in the outer peripheral wall of the steel pipe pile and tightening this bolt into the female screw part of the fitting part. Has been done. Further, after aligning the steel foundation beam in the horizontal direction using the oval loose hole formed in the steel foundation beam and the joining member, a bolt is inserted into the loose hole to insert the bolt into the loose hole. The nut is tightened to fix the steel foundation beam and the joining member.

特許第４６２８８３８号公報Japanese Patent No. 4628838

しかしながら、特許文献１に示す接合構造では、基礎杭と接合部材がボルトにより固定された状態で、この部分が埋戻し土に埋められており、接合構造の解体時に基礎杭から接合部材を取り外すことは簡単ではない。 However, in the joint structure shown in Patent Document 1, this portion is buried in backfill soil in a state where the foundation pile and the joint member are fixed by bolts, and the joint member is removed from the foundation pile when the joint structure is dismantled. Is not easy.

また、接合部材の一部は、基礎杭の内部に入り込んでいるため、基礎杭に対して接合部材の水平方向の移動は拘束されている。このため、接合部材の水平方向の位置合わせは、鋼製基礎梁と接合部材とに形成された長円状のルーズ孔を利用しなければならず、鋼製基礎梁と接合部材との固定は簡単ではなく、その構造も複雑である。 Further, since a part of the joining member has entered the inside of the foundation pile, the horizontal movement of the joining member is restricted with respect to the foundation pile. For this reason, the horizontal alignment of the joint member must utilize the oval loose holes formed in the steel foundation beam and the joint member, and the steel foundation beam and the joint member must be fixed. It is not easy and its structure is complicated.

本発明は、このような点を鑑みてなされたものであり、簡単な作業で、基礎杭に対して接合部材を介して鋼製基礎梁を適切な位置に取り付けることができ、さらには、基礎杭から接合部材を簡単に取り外すことができる基礎杭と鋼製基礎梁の接合構造およびその接合方法を提供することにある。 The present invention has been made in view of these points, and a steel foundation beam can be attached to a foundation pile at an appropriate position via a joint member with a simple operation, and further, a foundation. It is an object of the present invention to provide a joint structure and a method for joining a foundation pile and a steel foundation beam, which can easily remove a joining member from the pile.

前記目的を達成すべく、本発明に係る基礎杭と鋼製基礎梁の接合構造は、地面から突出した杭頭部を有した基礎杭と、前記杭頭部の少なくとも先端を覆う被覆部材と、前記杭頭部の全体を上方から収納した状態で、前記杭頭部に対して水平方向に移動自在な大きさを有した収納凹部が形成され、かつ、鋼製基礎梁を固定するための締結部材が埋設されたプレキャストコンクリート製の接合部材と、前記被覆部材で覆われた前記杭頭部と前記接合部材との前記収納凹部内の隙間に充填され、前記接合部材と前記被覆部材で覆われた前記杭頭部とを結合した結合材と、前記接合部材に載置され、前記締結部材を介して前記接合部材に固定された鋼製基礎梁と、を備えることを特徴する。 In order to achieve the above object, the joint structure of the foundation pile and the steel foundation beam according to the present invention includes a foundation pile having a pile head protruding from the ground, a covering member covering at least the tip of the pile head, and the like. With the entire pile head stored from above, a storage recess having a size that allows horizontal movement with respect to the pile head is formed, and fastening for fixing the steel foundation beam. The gap between the precast concrete joining member in which the member is embedded and the storage recess between the pile head and the joining member covered with the covering member is filled and covered with the joining member and the covering member. It is characterized by including a connecting member for connecting the pile head and a steel foundation beam placed on the joining member and fixed to the joining member via the fastening member.

本発明に係る接合構造によれば、プレキャストコンクリート製の接合部材の収納凹部に、基礎杭の杭頭部を収納した状態で、結合材により、接合部材と基礎杭とが結合されているため、より単純な構造で、基礎杭に接合部材を固定することができる。また、接合構造の解体時などには、接合部材を基礎杭に対して上方に引き上げれば、基礎杭から接合部材を簡単に取り外すことができる。このようにして、これまでのように基礎杭の外周壁に貫通孔等を設けることなく、接合部材を基礎杭に固定し、固定した接合部材を基礎杭から簡単に取り外すことができるので、基礎杭を再利用することも可能である。 According to the joining structure according to the present invention, the joining member and the foundation pile are joined by the joining material in a state where the pile head of the foundation pile is stored in the storage recess of the joining member made of precast concrete. With a simpler structure, the joint member can be fixed to the foundation pile. Further, when the joint structure is dismantled, the joint member can be easily removed from the foundation pile by pulling the joint member upward with respect to the foundation pile. In this way, the joint member can be fixed to the foundation pile and the fixed joint member can be easily removed from the foundation pile without providing a through hole or the like in the outer peripheral wall of the foundation pile as in the past. It is also possible to reuse the pile.

また、結合材の充填前には、基礎杭の杭頭部を収納した状態で、杭頭部に対して接合部材が水平方向に移動できるため、接合部材の水平方向の位置合わせを簡単に行うことができる。このため、接合部材に埋設された締結部材を水平方向の適切な位置に位置合わせし、この締結部材を介して、接合部材に対して水平方向の適切な位置に、鋼製基礎梁を取り付けることができる。 Further, before filling the binder, the joint member can move horizontally with respect to the pile head while the pile head of the foundation pile is stored, so that the horizontal alignment of the joint member can be easily performed. be able to. Therefore, the fastening member embedded in the joining member is aligned at an appropriate position in the horizontal direction, and the steel foundation beam is attached at an appropriate position in the horizontal direction with respect to the joining member via the fastening member. Can be done.

さらに、接合構造の解体時に、鋼製基礎梁を接合部材に固定する締結部材の締結を緩めれば、鋼製基礎梁を接合部材から簡単に取り外すことができ、取り外した鋼製基礎梁を再利用することもできる。 Further, when the joint structure is dismantled, if the fastening member for fixing the steel foundation beam to the joint member is loosened, the steel foundation beam can be easily removed from the joint member, and the removed steel foundation beam can be re-installed. It can also be used.

ここで、接合部材の天端面の高さが適切な高さであれば、接合部材を地面に直接配置してもよい。しかしながら、より好ましい態様としては、前記杭頭部の周りの地面と前記接合部材との間に、前記接合部材の配置高さを調整する台座部を備え、前記台座部と前記接合部材とが非接着状態で接触するように、前記接合部材が前記台座部に載置されている。 Here, if the height of the top surface of the joining member is an appropriate height, the joining member may be arranged directly on the ground. However, in a more preferable embodiment, a pedestal portion for adjusting the arrangement height of the joining member is provided between the ground around the pile head and the joining member, and the pedestal portion and the joining member are not. The joining member is placed on the pedestal portion so as to be in contact with each other in an bonded state.

この態様によれば、地面に設けた台座部に接合部材を載置することにより、接合部材の天端面を適切な高さにすることができる。また、接合部材は、非接着状態で接触した状態で台座部に載置されているので、接合部材を上方に引き上げれば、台座部から接合部材を簡単に引き離すことができ、基礎杭から接合部材を簡単に取り除くことができる。 According to this aspect, the top end surface of the joining member can be set to an appropriate height by placing the joining member on the pedestal portion provided on the ground. Further, since the joining member is placed on the pedestal portion in a non-adhesive state in contact with each other, the joining member can be easily separated from the pedestal portion by pulling up the joining member, and the joining member can be joined from the foundation pile. The member can be easily removed.

また、被覆部材が杭頭部の先端を覆っているのであれば、被覆部材の取付け状態は特に限定されるものではなく、杭頭部の全体を覆っていてもよく、杭頭の全体を覆った状態で、杭頭部の外周面を覆っている部分が、台座部に埋設されていてもよい。しかしながら、より好ましくは、前記被覆部材は、前記台座部に埋設されずに、前記杭頭部に対して着脱自在に、前記杭頭部の先端を覆っている。 Further, as long as the covering member covers the tip of the pile head, the mounting state of the covering member is not particularly limited, and the entire pile head may be covered, and the entire pile head is covered. In this state, the portion covering the outer peripheral surface of the pile head may be embedded in the pedestal portion. However, more preferably, the covering member is not embedded in the pedestal portion, but covers the tip of the pile head in a detachable manner with respect to the pile head.

この態様によれば、被覆部材は、台座部に埋設されず、杭頭部に対して着脱自在であるので、接合構造の解体時に、接合部材を引き上げると、台座部を残した状態で、接合部材とともに被覆部材を基礎杭から簡単に取り外すことができる。 According to this aspect, the covering member is not embedded in the pedestal portion and is detachable from the pile head. Therefore, when the joining member is pulled up at the time of disassembling the joint structure, the covering member is joined with the pedestal portion left. The covering member can be easily removed from the foundation pile together with the member.

さらに、台座部を残して接合部材を簡単に引き上げるためには、接合部材の収納凹部に充填された結合材が、台座部に付着しない構造であることが好ましい。そこで、より好ましい態様としては、前記台座部の天端面に対して前記収納凹部内の前記結合材が仕切られるように、前記台座部の前記天端面と前記結合材との間に仕切り材が配置されている。 Further, in order to easily pull up the joining member while leaving the pedestal portion, it is preferable that the binder material filled in the storage recess of the joining member does not adhere to the pedestal portion. Therefore, in a more preferable embodiment, the partition material is arranged between the top end surface of the pedestal portion and the binder so that the binder in the storage recess is partitioned from the top end surface of the pedestal portion. Has been done.

この態様によれば、台座部と結合材の間には、仕切り材が配置されているため、台座部は結合材に接触しない。これにより、接合構造の解体時には、台座部を残して、基礎杭から接合部材を簡単に引き離すことができる。 According to this aspect, since the partition member is arranged between the pedestal portion and the binder portion, the pedestal portion does not come into contact with the binder portion. As a result, when the joint structure is dismantled, the joint member can be easily separated from the foundation pile, leaving the pedestal portion.

本明細書では、基礎杭と鋼製基礎梁との接合方法も開示する。本発明に係る基礎杭と鋼製基礎梁との接合方法は、地面から突出した基礎杭の杭頭部の少なくとも先端を被覆部材で覆う被覆工程と、前記被覆工程の後の前記杭頭部の全体を上方から収納した状態で、前記杭頭部に対して水平方向に移動自在な大きさを有した収納凹部が形成され、かつ、鋼製基礎梁を固定するための締結部材が埋設されたプレキャストコンクリート製の接合部材を、前記杭頭部の全体が前記収納凹部に収納された状態で、水平方向の位置合わせをしながら配置する配置工程と、前記配置工程の後の前記被覆部材で覆われた前記杭頭部と前記接合部材との前記収納凹部内の隙間に、前記接合部材と前記被覆部材で覆われた前記杭頭部とを結合する結合材を充填する充填工程と、前記充填工程の後の前記接合部材に鋼製基礎梁を載置し、前記締結部材により、前記接合部材に前記鋼製基礎梁を固定する工程と、を少なくとも含むことを特徴とする。 This specification also discloses a method of joining a foundation pile and a steel foundation beam. The method of joining the foundation pile and the steel foundation beam according to the present invention includes a covering step of covering at least the tip of the pile head of the foundation pile protruding from the ground with a covering member, and a covering step of the pile head after the covering step. With the whole housed from above, a storage recess having a size that can be moved in the horizontal direction was formed with respect to the pile head, and a fastening member for fixing the steel foundation beam was embedded. The precast concrete joint member is covered with the covering member after the arranging step and the arranging step of arranging the joint member made of precast concrete while aligning in the horizontal direction with the entire pile head being housed in the storage recess. A filling step of filling the gap in the storage recess between the beam head and the joint member with a binder for connecting the joint member and the pile head covered with the covering member, and the filling. It is characterized by including at least a step of placing the steel foundation beam on the joining member after the step and fixing the steel foundation beam to the joining member by the fastening member.

本発明に係る接合方法によれば、配置工程において、接合部材の収納凹部に基礎杭の杭頭部を収納し、この収納状態で、充填工程において、結合材により接合部材と基礎杭とを結合するので、より単純な作業で、接合部材を基礎杭に固定することができる。また、得られた接合構造によれば、上述した如く、接合部材を基礎杭から簡単に取り外すことができ、基礎杭を再利用することができる。 According to the joining method according to the present invention, in the arrangement step, the pile head of the foundation pile is stored in the storage recess of the joining member, and in this stored state, the joining member and the foundation pile are joined by a binder in the filling step. Therefore, the joint member can be fixed to the foundation pile with a simpler operation. Further, according to the obtained joint structure, as described above, the joint member can be easily removed from the foundation pile, and the foundation pile can be reused.

また、杭頭部を収納した状態で接合部材の収納凹部の大きさが、杭頭部に対して接合部材が水平方向に移動自在な大きさであるので、配置工程において、接合部材の水平方向の位置合わせを簡単に行うことができる。このため、接合部材に埋設された締結部材を水平方向の適切な位置に位置合わせし、この締結部材を介して、接合部材に対して水平方向の適切な位置に、鋼製基礎梁を取り付けることができる。さらに、得られた接合構造によれば、鋼製基礎梁を接合部材に固定する締結部材の締結を緩めれば、鋼製基礎梁を接合部材から簡単に取り外すことができ、取り外した鋼製基礎梁を再利用することもできる。 Further, since the size of the storage recess of the joining member in the state where the pile head is stored is such that the joining member can move in the horizontal direction with respect to the pile head, the joining member is placed in the horizontal direction in the arrangement process. Can be easily aligned. Therefore, the fastening member embedded in the joining member is aligned at an appropriate position in the horizontal direction, and the steel foundation beam is attached at an appropriate position in the horizontal direction with respect to the joining member via the fastening member. Can be done. Further, according to the obtained joint structure, the steel foundation beam can be easily removed from the joint member by loosening the fastening of the fastening member for fixing the steel foundation beam to the joint member, and the removed steel foundation can be easily removed. Beams can also be reused.

ここで、接合部材を配置する際に、接合部材の天端面の配置高さが適切な高さとなるのであれば、接合部材を地面に直接配置してもよい。しかしながら、より好ましい態様としては、前記配置工程の前に、前記杭頭部の周りの地面に、前記接合部材の配置高さを調整する台座部を打設する打設工程を含み、前記台座部に非接着状態で接触するように、前記接合部材を前記台座部に載置する。 Here, when arranging the joining member, if the arrangement height of the top end surface of the joining member is an appropriate height, the joining member may be arranged directly on the ground. However, in a more preferable embodiment, the pedestal portion includes a placing step of placing a pedestal portion for adjusting the placement height of the joining member on the ground around the pile head before the placement step. The joining member is placed on the pedestal portion so as to come into contact with the pedestal portion in a non-adhesive state.

この態様によれば、打設工程において、台座部を打設し、この打設した台座部に接合部材を載置することにより、接合部材の天端面を適切な高さに調整することができる。また、台座部に非接着状態で接触するように、接合部材を台座部に載置するので、接合部材を上方に引き上げれば、台座部から接合部材を簡単に引き離すことができ、基礎杭から接合部材を簡単に取り除くことができる。 According to this aspect, in the casting process, the top end surface of the joining member can be adjusted to an appropriate height by placing the pedestal portion and placing the joining member on the driving pedestal portion. .. In addition, since the joining member is placed on the pedestal so that it comes into contact with the pedestal in a non-adhesive state, the joining member can be easily separated from the pedestal by pulling the joining member upward, and the joining member can be easily separated from the foundation pile. The joining member can be easily removed.

このような打設工程は、配置工程の前、被覆工程の後に行ってもよいが、より好ましくは、前記打設工程を前記被覆工程の前に行う。これにより、打設工程において打設された台座部に、被覆工程において被覆部材を被覆するので、被覆部材が台座部に埋設されることはない。これにより得られた接合構造によれば、その解体時に、接合部材を引き上げると、台座部を残した状態で、接合部材とともに被覆部材を基礎杭から簡単に取り外すことができる。 Such a casting step may be performed before the placement step and after the coating step, but more preferably, the casting step is performed before the coating step. As a result, since the covering member is coated on the pedestal portion cast in the casting process in the coating process, the covering member is not embedded in the pedestal portion. According to the joint structure obtained thereby, if the joint member is pulled up at the time of dismantling, the covering member together with the joint member can be easily removed from the foundation pile while leaving the pedestal portion.

ここで、接合構造の解体時に、台座部と接合部材とを簡単に分離することができるのであれば、充填工程において、台座部と接合部材との間において、これらが接触するように結合材が充填されてもよい。しかしながら、より好ましい態様としては、前記結合材の充填時に前記台座部の天端面に対して、前記収納凹部内の前記結合材が仕切られるように、前記被覆工程において、前記台座部の前記天端面に仕切り材を配置する。 Here, if the pedestal portion and the joining member can be easily separated at the time of disassembling the joining structure, the binder is provided so that the pedestal portion and the joining member come into contact with each other in the filling step. It may be filled. However, in a more preferable embodiment, in the coating step, the top surface of the pedestal portion is partitioned so that the binder in the storage recess is partitioned from the top surface of the pedestal portion when the binder is filled. Place the partition material in.

この態様によれば、被覆工程において配置された仕切り材により、充填工程において、結合材が台座部に接触しない。これにより得られた接合構造に対して、台座部を残して、基礎杭から仕切り材と共に接合部材を簡単に引き離すことができる。 According to this aspect, the partitioning material arranged in the coating step prevents the binder from coming into contact with the pedestal portion in the filling step. With respect to the joint structure thus obtained, the joint member can be easily separated from the foundation pile together with the partition material, leaving the pedestal portion.

本発明によれば、簡単な作業で、基礎杭に対して接合部材を介して鋼製基礎梁を適切な位置に取り付けることができ、さらには、基礎杭から接合部材を簡単に取り外すことができる。 According to the present invention, a steel foundation beam can be attached to a foundation pile at an appropriate position via a joint member with a simple operation, and the joint member can be easily removed from the foundation pile. ..

本発明の第１実施形態に係る基礎杭と鋼製基礎梁の接合構造を備えた接合構造の要部を示した模式的断面図である。It is a schematic cross-sectional view which showed the main part of the joint structure provided with the joint structure of the foundation pile and the steel foundation beam which concerns on 1st Embodiment of this invention. 図１に示す接合構造の要部斜視図である。It is a main part perspective view of the joint structure shown in FIG. 図１に示す接合部材を配置した状態の平面図である。It is a top view of the state in which the joining member shown in FIG. 1 is arranged. （ａ）〜（ｃ）は、図１に示す接合構造を解体する方法を説明するためのである。(A) to (c) are for explaining a method of disassembling the joint structure shown in FIG. （ａ）〜（ｅ）は、図１に示す接合構造を得るための接合方法を説明するための模式的断面図である。(A) to (e) are schematic cross-sectional views for explaining a joining method for obtaining the joining structure shown in FIG. （ａ）は、本発明の第２実施形態に係る基礎杭と鋼製基礎梁の接合構造を示した模式的断面図であり、（ｂ）は、（ａ）の接合構造を解体する方法を説明するための断面図である。(A) is a schematic cross-sectional view showing a joint structure of a foundation pile and a steel foundation beam according to a second embodiment of the present invention, and (b) is a method of disassembling the joint structure of (a). It is sectional drawing for demonstrating. （ａ）〜（ｅ）は、図６（ａ）に示す接合構造を得るための接合方法を説明するための模式的断面図である。(A) to (e) are schematic cross-sectional views for explaining a joining method for obtaining the joining structure shown in FIG. 6A. （ａ）は、本発明の第３実施形態に係る基礎杭と鋼製基礎梁の接合構造を示した模式的断面図であり、（ｂ）は、（ａ）の接合構造を解体する方法を説明するための断面図である。(A) is a schematic cross-sectional view showing a joint structure of a foundation pile and a steel foundation beam according to a third embodiment of the present invention, and (b) is a method of disassembling the joint structure of (a). It is sectional drawing for demonstrating. （ａ）〜（ｅ）は、図８（ａ）に示す接合構造を得るための接合方法を説明するための模式的断面図である。(A) to (e) are schematic cross-sectional views for explaining a joining method for obtaining the joining structure shown in FIG. 8A.

以下、実施形態に係る接合構造および接合方法のいくつかの実施形態を図面に基づき詳細に説明する。 Hereinafter, some embodiments of the joining structure and the joining method according to the embodiment will be described in detail with reference to the drawings.

（第１実施形態）
本発明の第１実施形態に係る接合構造および接合方法を、図１〜図５に基づき詳細に説明する。 (First Embodiment)
The joining structure and joining method according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

１−１．接合構造１について
図１および図２に示すように、本実施形態に係る接合構造１は、基礎杭１０と鋼製基礎梁２１とを、接合部材１３を介して接合した構造であり、建物の基礎構造である。接合構造１は、基礎杭１０と、基礎杭１０の杭頭部１０ａを覆う被覆部材１１と、杭頭部１０ａに結合材１７を介して固定する接合部材１３と、接合部材１３に固定される鋼製基礎梁２１と、少なくとも備えている。なお、本実施形態では、接合構造１には、地面Ｇと接合部材１３との間に、接合部材１３の配置高さ（天端面の高さ）を調整する台座部１２が、必要に応じて設けられている。 1-1. About the joint structure 1 As shown in FIGS. 1 and 2, the joint structure 1 according to the present embodiment is a structure in which a foundation pile 10 and a steel foundation beam 21 are joined via a joint member 13, and is a structure of a building. It is a basic structure. The joint structure 1 is fixed to the foundation pile 10, the covering member 11 that covers the pile head 10a of the foundation pile 10, the joint member 13 that is fixed to the pile head 10a via the binder 17, and the joint member 13. It is equipped with a steel foundation beam 21 and at least. In the present embodiment, the joint structure 1 includes a pedestal portion 12 for adjusting the arrangement height (height of the top end surface) of the joint member 13 between the ground G and the joint member 13, if necessary. It is provided.

図１に示すように、接合構造１には、鋼製基礎梁２１と直交する方向に延在した鋼製基礎梁２２が配置されており、これらは、ガセットプレート３５を介して、ボルトおよびナットで構成される締結部材３６で締結することにより、連結されている。鋼製基礎梁２１と鋼製基礎梁２２の天端面には、床版部材４１が配置され、床版部材４１の上には、床仕上げ材４２が配置されている。 As shown in FIG. 1, in the joint structure 1, a steel foundation beam 22 extending in a direction orthogonal to the steel foundation beam 21 is arranged, and these are bolts and nuts via a gusset plate 35. It is connected by fastening with a fastening member 36 composed of. A floor slab member 41 is arranged on the top end surfaces of the steel foundation beam 21 and the steel foundation beam 22, and a floor finishing material 42 is arranged on the floor slab member 41.

図２に示すように、鋼製基礎梁２１の上フランジの上には、角形鋼管からなる鋼製主柱２５が、ベースプレートを介してボルト接合により立設されており、鋼製基礎梁２１における鋼製主柱２５の下方には基礎杭１０が配置さている。一方、鋼製基礎梁２２の上には、角形鋼管からなる鋼製間柱２６が、ベースプレートを介してボルト３４とナット３３による接合により立設されている。さらに、鋼製基礎梁２２における鋼製間柱２６の下方には基礎杭１０は配置されず、鋼製間柱２６の軸力は鋼製基礎梁２２の曲げで伝達される。図１に示すように、隣接する鋼製主柱２５と鋼製間柱２６の間には、パネルフレーム材５２が取り付けられており、その外側には、外壁パネル５１が取付けられている。 As shown in FIG. 2, a steel main column 25 made of a square steel pipe is erected on the upper flange of the steel foundation beam 21 by bolting via a base plate. A foundation pile 10 is arranged below the steel main pillar 25. On the other hand, a steel stud 26 made of a square steel pipe is erected on the steel foundation beam 22 by joining the bolt 34 and the nut 33 via the base plate. Further, the foundation pile 10 is not arranged below the steel studs 26 in the steel foundation beam 22, and the axial force of the steel studs 26 is transmitted by bending the steel foundation beam 22. As shown in FIG. 1, a panel frame material 52 is attached between the adjacent steel main columns 25 and the steel studs 26, and an outer wall panel 51 is attached to the outside thereof.

基礎杭１０は、地面Ｇから突出した杭頭部１０ａを有しており、地盤に圧入された鋼管杭、コンクリート杭（例えばＰＨＣ杭、ＰＲＣ杭）、または合成杭（例えばＳＣ杭）などで構成され、その素材は特に限定されない。基礎杭１０は、上下方向に軸が延在した円筒形状の杭であり、地面Ｇから突出した杭頭部１０ａの先端は開口している。 The foundation pile 10 has a pile head 10a protruding from the ground G, and is composed of steel pipe piles, concrete piles (for example, PHC piles, PRC piles), synthetic piles (for example, SC piles), etc., which are press-fitted into the ground. The material is not particularly limited. The foundation pile 10 is a cylindrical pile whose axis extends in the vertical direction, and the tip of the pile head 10a protruding from the ground G is open.

被覆部材１１は、たとえば、金属材料または樹脂材料からなり、杭頭部１０ａの先端（具体的には杭頭部１０ａの開口）を覆うように配置されており、有底円筒状の形状である。この有底円筒状の被覆部材１１の底部で、杭頭部１０ａの開口は覆われている。なお、後述する接合方法の充填工程において、杭頭部１０ａの開口に結合材１７が浸入することを防止することができるのであれば、被覆部材１１の形状および材質は特に限定されるものではない。 The covering member 11 is made of, for example, a metal material or a resin material, is arranged so as to cover the tip of the pile head 10a (specifically, the opening of the pile head 10a), and has a bottomed cylindrical shape. .. The opening of the pile head 10a is covered by the bottom of the bottomed cylindrical covering member 11. The shape and material of the covering member 11 are not particularly limited as long as the binder 17 can be prevented from entering the opening of the pile head 10a in the filling step of the joining method described later. ..

接合部材１３は、ブロック状のプレキャストコンクリート製の部材であり、基礎杭１０と鋼製基礎梁２１とを接合し、鋼製基礎梁２１からの荷重を、接合部材１３を介して基礎杭１０に伝えるものである。接合部材１３は、杭頭部１０ａの周りの地面Ｇと接合部材１３との間に、モルタルにより地面Ｇに打設された台座部１２に載置されている。台座部１２は、地面Ｇに対する接合部材１３の配置高さ（天端面の高さ）を調整する高さ調整部としての機能を果たし、これにより、接合部材１３に固定される鋼製基礎梁２１の据え付け高さを調整することができる。 The joining member 13 is a block-shaped precast concrete member that joins the foundation pile 10 and the steel foundation beam 21 and applies a load from the steel foundation beam 21 to the foundation pile 10 via the joining member 13. It conveys. The joining member 13 is placed on a pedestal portion 12 placed on the ground G by a mortar between the ground G around the pile head 10a and the joining member 13. The pedestal portion 12 functions as a height adjusting portion for adjusting the arrangement height (height of the top surface) of the joining member 13 with respect to the ground G, whereby the steel foundation beam 21 fixed to the joining member 13 is provided. The installation height of the can be adjusted.

図１および図３に示すように、接合部材１３には、Ｈ形鋼などの形鋼からなる鋼製基礎梁２１を固定するための４つの締結部材１４が埋設されている。本実施形態では、締結部材１４は、雌ねじが形成された金属製のインサート材であるが、鋼製基礎梁２１を接合部材１３に固定することができるのであれば、雄ねじが本体から突出した金属製のインサート材であってもよい。型内で接合部材１３をコンクリートでプレキャストする際に、これらの締結部材１４を型内に配置することにより、接合部材１３の内部に締結部材１４を埋設することができる。鋼製基礎梁２１を接合部材１３に載置した状態で、鋼製基礎梁２１の下フランジに形成された貫通孔（図示せず）にボルト（他方の締結部材）３１を挿通し、雌ねじが形成された締結部材１４にボルト３１を螺着させて締め込むことにより、鋼製基礎梁２１を接合部材１３に固定することができる。 As shown in FIGS. 1 and 3, four fastening members 14 for fixing the steel foundation beam 21 made of shaped steel such as H-shaped steel are embedded in the joining member 13. In the present embodiment, the fastening member 14 is a metal insert material on which a female screw is formed, but if the steel foundation beam 21 can be fixed to the joining member 13, the metal with the male screw protruding from the main body. It may be an insert material made of. When the joining member 13 is precast with concrete in the mold, the fastening member 14 can be embedded inside the joining member 13 by arranging these fastening members 14 in the mold. With the steel foundation beam 21 mounted on the joining member 13, a bolt (the other fastening member) 31 is inserted into a through hole (not shown) formed in the lower flange of the steel foundation beam 21, and a female screw is removed. The steel foundation beam 21 can be fixed to the joining member 13 by screwing and tightening the bolt 31 to the formed fastening member 14.

接合部材１３には、被覆部材１１に覆われた杭頭部１０ａの全体を収納する大きさを有した収納凹部１６ａが形成され、収納凹部１６ａは下方に開口している。より具体的には、図３に示すように、収納凹部１６ａの大きさは、被覆部材１１が被覆された杭頭部１０ａを上方から収納した状態で、杭頭部１０ａに対して接合部材１３が少なくとも水平方向に移動自在な大きさとなっている。これにより、接合部材１３に埋設された締結部材１４を水平方向の適切な位置に位置合わせを行い、締結部材１４を介して水平方向の適切な位置で、鋼製基礎梁２１を接合部材１３に固定することができる。なお、本実施形態では、水平方向の適切な位置への位置合わせとは、鋼製基礎梁２１を接合部材１３に固定した状態で、基礎杭１０の軸芯と、鋼製基礎梁２１のウェブとが上下方向において一致するように、鋼製基礎梁２１を固定する締結部材１４の位置を合わせることをいう。これにより、鋼製基礎梁２１の荷重を、接合部材１３を介して基礎杭１０でより効果的に受けることができる。 The joining member 13 is formed with a storage recess 16a having a size for accommodating the entire pile head 10a covered with the covering member 11, and the storage recess 16a opens downward. More specifically, as shown in FIG. 3, the size of the storage recess 16a is such that the pile head 10a coated with the covering member 11 is housed from above, and the joint member 13 is attached to the pile head 10a. Is at least sized to be movable in the horizontal direction. As a result, the fastening member 14 embedded in the joining member 13 is aligned at an appropriate position in the horizontal direction, and the steel foundation beam 21 is attached to the joining member 13 at an appropriate position in the horizontal direction via the fastening member 14. Can be fixed. In the present embodiment, the positioning to an appropriate position in the horizontal direction means that the steel foundation beam 21 is fixed to the joint member 13 and the axis of the foundation pile 10 and the web of the steel foundation beam 21 are used. It means that the positions of the fastening members 14 for fixing the steel foundation beams 21 are aligned so that the above are aligned in the vertical direction. As a result, the load of the steel foundation beam 21 can be more effectively received by the foundation pile 10 via the joining member 13.

本実施形態では、接合部材１３に上述した収納凹部１６ａを設けることにより、被覆部材１１が被覆された杭頭部１０ａの水平方向および鉛直方向に隙間が形成され、この隙間には結合材１７が充填されている。図１および図３に示すように、接合部材１３の収納凹部１６ａには、結合材１７を注入する４つの注入孔１６ｂが連通している。注入孔１６ｂと収納凹部１６ａには、固化した状態の結合材１７が充填されている。図１に示す結合材１７は、後述する施工時において流動可能な状態の結合材が固化したものである。 In the present embodiment, by providing the above-mentioned storage recess 16a in the joining member 13, gaps are formed in the horizontal direction and the vertical direction of the pile head 10a covered with the covering member 11, and the binder 17 is formed in the gaps. It is filled. As shown in FIGS. 1 and 3, four injection holes 16b for injecting the binder 17 communicate with the storage recess 16a of the joining member 13. The injection hole 16b and the storage recess 16a are filled with a solidified binder 17. The binder 17 shown in FIG. 1 is a solidified binder that is in a fluid state during construction, which will be described later.

ここで、結合材１７は、被覆部材１１が被覆された杭頭部１０ａと接合部材１３とを結合するものである。結合材１７は、これを注入孔１６ｂから注入する際には、流動可能であり、その後固化することにより、杭頭部１０ａに接合部材１３を固定することができるのであれば、その素材は限定されるものではなく、たとえば、本実施形態ではモルタルであり、より好ましく、無収縮モルタルである。結合材１７に無収縮モルタルを用いることにより、接合部材１３と、被覆部材１１が被覆された杭頭部１０ａとの結合性を高めることができる。 Here, the connecting member 17 joins the pile head 10a covered with the covering member 11 and the joining member 13. The material of the binder 17 is limited as long as it can flow when injected from the injection hole 16b and then solidifies to fix the joining member 13 to the pile head 10a. For example, in this embodiment, it is a mortar, more preferably a non-shrink mortar. By using a non-shrink mortar for the binder 17, the bondability between the joining member 13 and the pile head 10a coated with the covering member 11 can be improved.

鋼製基礎梁２１は、Ｈ形鋼などの形鋼からなり、その下フランジには、上述した如く、ボルト３１を挿通するための貫通孔が形成されている。鋼製基礎梁２１は、接合部材１３に載置され、ボルト３１を、下フランジの貫通孔に挿通し、締結部材１４の雌ねじに締め込むことにより、接合部材１３に固定されている。 The steel foundation beam 21 is made of shaped steel such as H-shaped steel, and as described above, a through hole for inserting the bolt 31 is formed in the lower flange thereof. The steel foundation beam 21 is placed on the joining member 13, and is fixed to the joining member 13 by inserting the bolt 31 into the through hole of the lower flange and tightening it into the female screw of the fastening member 14.

本実施形態に係る接合構造１によれば、接合部材１３の収納凹部１６ａに、基礎杭１０の杭頭部１０ａを収納した状態で、結合材１７によりこれらが結合されているため、より単純な構造で、基礎杭１０の杭頭部１０ａに接合部材１３を固定することができる。 According to the joining structure 1 according to the present embodiment, the pile head 10a of the foundation pile 10 is housed in the storage recess 16a of the joining member 13, and these are joined by the connecting member 17, which is simpler. With the structure, the joining member 13 can be fixed to the pile head 10a of the foundation pile 10.

また、接合構造１の解体時などには、図４（ａ）、（ｂ）に示すように、鋼製基礎梁２１を固定するボルト３１と締結部材１４の締結を緩めれば、鋼製基礎梁２１を接合部材１３から簡単に取り外すことができ、取り外した鋼製基礎梁２１を再利用することが可能である。 Further, when the joint structure 1 is disassembled, as shown in FIGS. 4A and 4B, if the bolt 31 for fixing the steel foundation beam 21 and the fastening member 14 are loosened, the steel foundation can be loosened. The beam 21 can be easily removed from the joining member 13, and the removed steel foundation beam 21 can be reused.

さらに、図４（ｃ）に示すように、接合部材１３を基礎杭１０に対して上方に引き上げれば、基礎杭１０の杭頭部１０ａから接合部材１３を簡単に取り外すことができる。このようにして、基礎杭の外周壁に貫通孔等を設けることなく、接合部材１３を基礎杭１０に固定し、固定した接合部材１３を基礎杭１０から簡単に取り外すことができるので、基礎杭１０を再利用することも可能である。 Further, as shown in FIG. 4C, if the joining member 13 is pulled upward with respect to the foundation pile 10, the joining member 13 can be easily removed from the pile head 10a of the foundation pile 10. In this way, the joining member 13 can be fixed to the foundation pile 10 and the fixed joining member 13 can be easily removed from the foundation pile 10 without providing a through hole or the like in the outer peripheral wall of the foundation pile. It is also possible to reuse 10.

特に、本実施形態では、接合部材１３は、これらが非接着状態で接触するように、台座部１２に載置されているので、接合部材１３を上方に引き上げれば、台座部１２から接合部材１３を簡単に引き離すことができ、基礎杭１０から接合部材１３を簡単に取り除くことができる。 In particular, in the present embodiment, the joining member 13 is placed on the pedestal portion 12 so that they come into contact with each other in a non-adhesive state. 13 can be easily separated, and the joining member 13 can be easily removed from the foundation pile 10.

１−２．接合方法について
以下に、図５を参照して、上述した接合構造１を得るための基礎杭１０と接合部材１３との接合方法を説明する。まず、地面から突出した基礎杭１０の杭頭部１０ａの天端面が所定の高さになるように杭頭部１０ａの先端を切断し、図５（ａ）に示すように、杭頭部１０ａの先端を被覆部材１１で覆う（被覆工程）。 1-2. About the joining method The joining method of the foundation pile 10 and the joining member 13 for obtaining the above-mentioned joining structure 1 will be described below with reference to FIG. First, the tip of the pile head 10a is cut so that the top surface of the pile head 10a of the foundation pile 10 protruding from the ground has a predetermined height, and as shown in FIG. 5A, the pile head 10a is cut. The tip of the is covered with a covering member 11 (coating step).

次に、図５（ｂ）に示すように、杭頭部１０ａの周りの地面Ｇに、接合部材１３の設置高さ（接合部材１３の天端面の高さ）を調整するための台座部１２をモルタルで打設する（打設工程）。なお、本実施形態では、被覆部材１１の一部が、台座部１２に埋設されている。 Next, as shown in FIG. 5B, the pedestal portion 12 for adjusting the installation height of the joining member 13 (the height of the top end surface of the joining member 13) on the ground G around the pile head 10a. Is placed with mortar (placement process). In this embodiment, a part of the covering member 11 is embedded in the pedestal portion 12.

次に、図５（ｃ）に示すように、被覆部材１１で覆われた杭頭部１０ａの全体が、接合部材１３の収納凹部１６ａに収納されるように接合部材１３を配置する（配置工程）。接合部材１３の収納凹部１６ａの大きさが、基礎杭１０の杭頭部１０ａに対して接合部材１３が水平方向に移動自在な大きさとなっているので、杭頭部１０ａを収納凹部１６ａに収納した状態で、接合部材１３（具体的には締結部材１４）の水平方向の位置合わせを簡単に行うことができる。 Next, as shown in FIG. 5C, the joining member 13 is arranged so that the entire pile head 10a covered with the covering member 11 is housed in the storage recess 16a of the joining member 13 (arrangement step). ). Since the size of the storage recess 16a of the joining member 13 is such that the joining member 13 can move horizontally with respect to the pile head 10a of the foundation pile 10, the pile head 10a is stored in the storage recess 16a. In this state, the joining member 13 (specifically, the fastening member 14) can be easily aligned in the horizontal direction.

次に、図５（ｃ）、（ｄ）に示すように、注入孔１６ｂから、結合材１７を注入し、被覆部材１１で覆われた杭頭部１０ａと接合部材１３との収納凹部１６ａ内の隙間に、結合材１７を充填する。杭頭部１０ａの先端は、被覆部材１１で覆われているため、杭頭部１０ａの先端から、結合材１７が、基礎杭１０の内部に入り込むことはない。ここで、本実施形態では、図３に示すように、収納凹部１６ａの四隅に連通する４つの注入孔１６ｂから、結合材１７を注入したが、これらのうち、１つまたは２つの注入孔１６ｂを、収納凹部１６ａの空気を排出する排出孔として用いてもよい。 Next, as shown in FIGS. 5C and 5D, the binder 17 is injected from the injection hole 16b, and the inside of the storage recess 16a between the pile head 10a covered with the covering member 11 and the joining member 13 is injected. The gap between the two is filled with the binder 17. Since the tip of the pile head 10a is covered with the covering member 11, the binder 17 does not enter the inside of the foundation pile 10 from the tip of the pile head 10a. Here, in the present embodiment, as shown in FIG. 3, the binder 17 is injected from the four injection holes 16b communicating with the four corners of the storage recess 16a, and one or two of these injection holes 16b are injected. May be used as a discharge hole for discharging air from the storage recess 16a.

その後、充填した結合材（たとえば無収縮モルタル）１７が固化すれば、接合部材１３と、被覆部材１１で覆われた杭頭部１０ａとが結合され、杭頭部１０ａに接合部材１３を固定することができる。最後に、図５（ｅ）に示すように、接合部材１３に鋼製基礎梁２１を載置し、締結部材１４にボルト３１を締め込んで、接合部材１３に鋼製基礎梁２１を固定する。 After that, when the filled binder (for example, non-shrink mortar) 17 is solidified, the joining member 13 and the pile head 10a covered with the covering member 11 are joined, and the joining member 13 is fixed to the pile head 10a. be able to. Finally, as shown in FIG. 5 (e), the steel foundation beam 21 is placed on the joining member 13, the bolt 31 is tightened on the fastening member 14, and the steel foundation beam 21 is fixed to the joining member 13. ..

本実施形態では、接合部材１３の収納凹部１６ａに基礎杭１０の杭頭部１０ａを収納し、この収納状態で、結合材１７により接合部材１３と基礎杭１０とを結合するので、より単純な作業で、接合部材１３を基礎杭１０に固定することができる。また、接合部材１３に埋設された締結部材１４にボルト３１を締め込むだけで、接合部材１３に鋼製基礎梁２１を簡単に固定することができる。 In the present embodiment, the pile head 10a of the foundation pile 10 is stored in the storage recess 16a of the joining member 13, and in this stored state, the joining member 13 and the foundation pile 10 are joined by the connecting member 17, which is simpler. In the work, the joining member 13 can be fixed to the foundation pile 10. Further, the steel foundation beam 21 can be easily fixed to the joining member 13 only by tightening the bolt 31 to the fastening member 14 embedded in the joining member 13.

（第２実施形態）
本発明の第２実施形態に係る接合構造および接合方法を、図６および図７に基づき詳細に説明する。本実施形態に係る接合構造が、第１実施形態のものと相違する点は、被覆部材の形状であり、他の実質的に同等の構成については同じ符号を付して詳細な説明は省略する。 (Second Embodiment)
The joining structure and joining method according to the second embodiment of the present invention will be described in detail with reference to FIGS. 6 and 7. The difference between the joint structure according to the present embodiment and that of the first embodiment is the shape of the covering member, and the same reference numerals are given to other substantially equivalent configurations, and detailed description thereof will be omitted. ..

２−１．接合構造１について
本実施形態に係る接合構造１は、図６（ａ）に示すように、被覆部材１１は台座部１２に埋設されずに、杭頭部１０ａに対して着脱自在に、杭頭部１０ａの先端を覆っている。より具体的には、本実施形態では、被覆部材１１は、台座部１２に非接触の状態で、杭頭部１０ａの先端を覆っている。 2-1. About the joint structure 1 As shown in FIG. 6A, in the joint structure 1 according to the present embodiment, the covering member 11 is not embedded in the pedestal portion 12, but is detachably attached to and detachable from the pile head 10a. It covers the tip of the portion 10a. More specifically, in the present embodiment, the covering member 11 covers the tip of the pile head 10a in a non-contact state with the pedestal portion 12.

このように構成することにより、図６（ｂ）に示すように、接合構造１を解体する際には、接合部材１３を上方に引き上げると、被覆部材１１は台座部１２に拘束されないので、台座部１２を残した状態で、接合部材１３とともに被覆部材１１を基礎杭１０から簡単に取り外すことができる。 With this configuration, as shown in FIG. 6B, when the joining structure 1 is disassembled, if the joining member 13 is pulled upward, the covering member 11 is not restrained by the pedestal portion 12, so that the pedestal is not constrained. The covering member 11 can be easily removed from the foundation pile 10 together with the joining member 13 while leaving the portion 12.

２−２．接合方法について
このような接合構造１は、以下の接合方法により得ることができる。具体的には、図７（ａ）に示すように、地面から突出した基礎杭１０の杭頭部１０ａの天端面を所定の高さになるように切断し、第１実施形態とは異なり、杭頭部１０ａの先端を被覆部材１１で覆う前に、台座部１２をモルタルで打設する（打設工程）。 2-2. Joining method Such a joining structure 1 can be obtained by the following joining method. Specifically, as shown in FIG. 7A, the top end surface of the pile head 10a of the foundation pile 10 protruding from the ground is cut so as to have a predetermined height, unlike the first embodiment. Before covering the tip of the pile head 10a with the covering member 11, the pedestal portion 12 is driven with mortar (placing step).

次に、図７（ｂ）に示すように、杭頭部１０ａの先端を被覆部材１１で覆う（被覆工程）。これにより、より簡単な作業で、台座部１２に被覆部材１１が埋設されることなく、被覆部材１１を杭頭部１０ａに対して着脱自在に配置することができる。 Next, as shown in FIG. 7B, the tip of the pile head 10a is covered with the covering member 11 (covering step). As a result, the covering member 11 can be detachably arranged with respect to the pile head 10a without burying the covering member 11 in the pedestal portion 12 with a simpler operation.

次に、第１実施形態と同様に、被覆部材１１で覆われた杭頭部１０ａの全体が、接合部材１３の収納凹部１６ａに収納されるように、接合部材１３を台座部１２に載置する（図７（ｃ）参照）。次に、被覆部材１１で覆われた杭頭部１０ａと接合部材１３との収納凹部１６ａ内の隙間に、注入孔１６ｂを介して、結合材１７を充填する（図７（ｄ）参照）。最後に、接合部材１３に鋼製基礎梁２１を載置し、接合部材１３に鋼製基礎梁２１を固定する（図７（ｅ）参照）。 Next, as in the first embodiment, the joining member 13 is placed on the pedestal portion 12 so that the entire pile head 10a covered with the covering member 11 is housed in the storage recess 16a of the joining member 13. (See FIG. 7 (c)). Next, the binder 17 is filled in the gap in the storage recess 16a between the pile head 10a covered with the covering member 11 and the joining member 13 via the injection hole 16b (see FIG. 7D). Finally, the steel foundation beam 21 is placed on the joining member 13, and the steel foundation beam 21 is fixed to the joining member 13 (see FIG. 7E).

（第３実施形態）
本発明の第３実施形態に係る接合構造および接合方法を、図８および図９に基づき詳細に説明する。本実施形態に係る接合構造が、第１実施形態のものと相違する点は、仕切り材を設けた点であり、他の実質的に同等の構成については同じ符号を付して詳細な説明は省略する。 (Third Embodiment)
The joining structure and joining method according to the third embodiment of the present invention will be described in detail with reference to FIGS. 8 and 9. The difference between the joint structure according to the present embodiment and that of the first embodiment is that a partition member is provided, and the other substantially equivalent configurations are designated by the same reference numerals and detailed description thereof will be given. Omit.

３−１．接合構造１について
本実施形態に係る接合構造１は、図８（ａ）に示すように、台座部１２の天端面１２ａに対して収納凹部１６ａ内の結合材１７が仕切られるように、台座部１２の天端面１２ａと結合材１７との間に配置された仕切り材１８を備えている。 3-1. Joining structure 1 As shown in FIG. 8A, the joining structure 1 according to the present embodiment has a pedestal portion such that the connecting member 17 in the storage recess 16a is partitioned from the top end surface 12a of the pedestal portion 12. A partition member 18 arranged between the top end surface 12a of the 12 and the binder 17 is provided.

具体的には、仕切り材１８は、収納凹部１６ａの下方に開口した開口部と略同じ大きさの矩形状の金属材料、樹脂材料、またはこれらの複合材料からなるプレートであり、台座部１２に対して非接着の状態で載置されている。本実施形態では、仕切り材１８の大きさおよび形状（具体的には矩形状）は、収納凹部１６ａの下方に開口した開口部の大きさおよび形状と略同じであるが、たとえば、この仕切り材の周縁が、台座部１２の天端面１２ａと接合部材１３との間に一部張り込んでいてもよい。 Specifically, the partition member 18 is a plate made of a rectangular metal material, a resin material, or a composite material having substantially the same size as the opening opened below the storage recess 16a, and is formed on the pedestal portion 12. On the other hand, it is placed in a non-adhesive state. In the present embodiment, the size and shape (specifically, rectangular shape) of the partition material 18 is substantially the same as the size and shape of the opening opened below the storage recess 16a. For example, this partition material The peripheral edge of the pedestal portion 12 may be partially stretched between the top end surface 12a of the pedestal portion 12 and the joining member 13.

このようにして、図８（ｂ）に示すように、台座部１２は、仕切り材１８により、結合材１７に接触しないため、接合構造１を解体する際には、台座部１２を残した状態で、接合部材１３を基礎杭１０から簡単に取り外すことができる。 In this way, as shown in FIG. 8B, the pedestal portion 12 does not come into contact with the coupling member 17 due to the partition member 18, so that the pedestal portion 12 remains when the joint structure 1 is disassembled. Therefore, the joining member 13 can be easily removed from the foundation pile 10.

３−２．接合方法について
このような接合構造１は、以下の接合方法により得ることができる。具体的には、図９（ａ）に示すように、地面から突出した基礎杭１０の杭頭部１０ａの天端面を所定の高さになるように切断し、第１実施形態とは異なり、杭頭部１０ａの先端を被覆部材１１で覆う前に、台座部１２をモルタルで打設する（打設工程）。 3-2. Joining method Such a joining structure 1 can be obtained by the following joining method. Specifically, as shown in FIG. 9A, the top end surface of the pile head 10a of the foundation pile 10 protruding from the ground is cut so as to have a predetermined height, unlike the first embodiment. Before covering the tip of the pile head 10a with the covering member 11, the pedestal portion 12 is driven with mortar (placing step).

次に、図９（ｂ）に示すように、杭頭部１０ａの先端を被覆部材１１で覆うとともに、その後の結合材１７の充填時に台座部１２の天端面１２ａに対して、収納凹部１６ａ内の結合材１７が仕切られるように、台座部１２の天端面１２ａに仕切り材１８を配置する。 Next, as shown in FIG. 9B, the tip of the pile head 10a is covered with the covering member 11, and when the binder 17 is subsequently filled, the inside of the storage recess 16a is relative to the top end surface 12a of the pedestal portion 12. The partition member 18 is arranged on the top end surface 12a of the pedestal portion 12 so that the binder member 17 of the above is partitioned.

次に、第１実施形態と同様に、被覆部材１１で覆われた杭頭部１０ａの全体が、接合部材１３の収納凹部１６ａに収納されるように、接合部材１３を台座部１２に載置する（図９（ｃ）参照）。次に、被覆部材１１で覆われた杭頭部１０ａと接合部材１３との収納凹部１６ａ内の隙間に、注入孔１６ｂを介して、結合材１７を充填する（図９（ｄ）参照）。この際、仕切り材１８により、充填された結合材１７が、台座部１２の天端面１２ａに接触することを回避することができる。最後に、接合部材１３に鋼製基礎梁２１を載置し、接合部材１３に鋼製基礎梁２１を固定する（図９（ｅ）参照）。 Next, as in the first embodiment, the joining member 13 is placed on the pedestal portion 12 so that the entire pile head 10a covered with the covering member 11 is housed in the storage recess 16a of the joining member 13. (See FIG. 9 (c)). Next, the binder 17 is filled in the gap in the storage recess 16a between the pile head 10a covered with the covering member 11 and the joining member 13 via the injection hole 16b (see FIG. 9D). At this time, the partition material 18 can prevent the filled binder 17 from coming into contact with the top end surface 12a of the pedestal portion 12. Finally, the steel foundation beam 21 is placed on the joining member 13, and the steel foundation beam 21 is fixed to the joining member 13 (see FIG. 9E).

以上、本発明の実施形態について詳述したが、本発明は、前記の実施形態に限定されるものではなく、特許請求の範囲に記載された本発明の精神を逸脱しない範囲で、種々の設計変更を行うことができるものである。 Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs are designed without departing from the spirit of the present invention described in the claims. You can make changes.

たとえば、第２および第３実施形態では、台座部を打設後に、被覆部材を配置したが、台座部を打設前に被覆部材を配置してもよい。また、第３実施形態では、被覆部材を配置する際に、仕切り材を配置したが、たとえば、接合部材の開口部を覆うように接合部材に仕切り材を設けてもよい。 For example, in the second and third embodiments, the covering member is arranged after the pedestal portion is placed, but the covering member may be arranged before the pedestal portion is placed. Further, in the third embodiment, the partition material is arranged when the covering member is arranged, but for example, the partition material may be provided in the joint member so as to cover the opening of the joint member.

また、第１〜第３の実施形態では台座部を設けたが、接合部材の天端面の高さを適切な高さに確保することができるのであれば、接合部材を地面に直接載置してもよい。 Further, although the pedestal portion is provided in the first to third embodiments, if the height of the top end surface of the joining member can be secured at an appropriate height, the joining member is placed directly on the ground. You may.

１：接合構造、１０：基礎杭、１０ａ：杭頭部、１１：被覆部材、１２：台座部、１３接合部材、１４：締結部材、１６ａ：収納凹部、１６ｂ：注入孔、１７：結合材、２１：鋼製基礎梁、Ｇ：地面 1: Joining structure, 10: Foundation pile, 10a: Pile head, 11: Covering member, 12: Pedestal, 13 joining member, 14: Fastening member, 16a: Storage recess, 16b: Injection hole, 17: Bonding material, 21: Steel foundation beam, G: Ground

Claims (6)

地面から突出した杭頭部を有した基礎杭と、
前記杭頭部の少なくとも先端を覆う被覆部材と、
前記杭頭部の全体を上方から収納した状態で、前記杭頭部に対して水平方向に移動自在な大きさを有した収納凹部が形成され、かつ、鋼製基礎梁を固定するための締結部材が埋設されたプレキャストコンクリート製の接合部材と、
前記被覆部材で覆われた前記杭頭部と前記接合部材との前記収納凹部内の隙間に充填され、前記接合部材と前記被覆部材で覆われた前記杭頭部とを結合した結合材と、
前記接合部材に載置され、前記締結部材を介して前記接合部材に固定された鋼製基礎梁と、を備え、
前記杭頭部の周りの地面と前記接合部材との間に、前記接合部材の配置高さを調整する台座部を備え、前記台座部と前記接合部材とが非接着状態で接触するように、前記接合部材が前記台座部に載置され、
前記被覆部材は、前記台座部に埋設されずに、前記杭頭部に対して着脱自在に、前記杭頭部の先端を覆っていることを特徴とする基礎杭と鋼製基礎梁の接合構造。 A foundation pile with a pile head protruding from the ground,
A covering member covering at least the tip of the pile head and
With the entire pile head stored from above, a storage recess having a size that allows horizontal movement with respect to the pile head is formed, and fastening for fixing the steel foundation beam. Precast concrete joint members with embedded members and
A binder that is filled in the gap between the pile head covered with the covering member and the joining member in the storage recess and that joins the joining member and the pile head covered with the covering member.
A steel foundation beam mounted on the joining member and fixed to the joining member via the fastening member .
A pedestal portion for adjusting the arrangement height of the joining member is provided between the ground around the pile head and the joining member so that the pedestal portion and the joining member come into contact with each other in a non-adhesive state. The joining member is placed on the pedestal portion, and the joint member is placed on the pedestal portion.
A joint structure of a foundation pile and a steel foundation beam, characterized in that the covering member is not embedded in the pedestal portion but is detachably attached to the pile head and covers the tip of the pile head. .. 地面から突出した杭頭部を有した基礎杭と、
前記杭頭部の少なくとも先端を覆う被覆部材と、
前記杭頭部の全体を上方から収納した状態で、前記杭頭部に対して水平方向に移動自在な大きさを有した収納凹部が形成され、かつ、鋼製基礎梁を固定するための締結部材が埋設されたプレキャストコンクリート製の接合部材と、
前記被覆部材で覆われた前記杭頭部と前記接合部材との前記収納凹部内の隙間に充填され、前記接合部材と前記被覆部材で覆われた前記杭頭部とを結合した結合材と、
前記接合部材に載置され、前記締結部材を介して前記接合部材に固定された鋼製基礎梁と、を備え、
前記杭頭部の周りの地面と前記接合部材との間に、前記接合部材の配置高さを調整する台座部を備え、前記台座部と前記接合部材とが非接着状態で接触するように、前記接合部材が前記台座部に載置され、
前記台座部の天端面に対して前記収納凹部内の前記結合材を仕切ることにより、前記結合材が前記台座部の前記天端面に非接触となるように、前記台座部の前記天端面と前記結合材との間に仕切り材が配置されていることを特徴とする基礎杭と鋼製基礎梁の接合構造。 A foundation pile with a pile head protruding from the ground,
A covering member covering at least the tip of the pile head and
With the entire pile head stored from above, a storage recess having a size that allows horizontal movement with respect to the pile head is formed, and fastening for fixing the steel foundation beam. Precast concrete joint members with embedded members and
A binder that is filled in the gap between the pile head covered with the covering member and the joining member in the storage recess and that joins the joining member and the pile head covered with the covering member.
A steel foundation beam mounted on the joining member and fixed to the joining member via the fastening member .
A pedestal portion for adjusting the arrangement height of the joining member is provided between the ground around the pile head and the joining member so that the pedestal portion and the joining member come into contact with each other in a non-adhesive state. The joining member is placed on the pedestal portion, and the joint member is placed on the pedestal portion.
By partitioning the binding material in the storage recess with respect to the top end surface of the pedestal portion, the top end surface of the pedestal portion and the said A joint structure of a foundation pile and a steel foundation beam, characterized in that a partition material is arranged between the joint material and the foundation pile. 前記台座部の天端面に対して前記収納凹部内の前記結合材が仕切られるように、前記台座部の前記天端面と前記結合材との間に仕切り材が配置されていることを特徴とする請求項１に記載の基礎杭と鋼製基礎梁の接合構造。 A partition member is arranged between the top end surface of the pedestal portion and the binder so that the binder in the storage recess is partitioned from the top surface of the pedestal portion. The joint structure of the foundation pile and the steel foundation beam according to claim 1. 地面から突出した基礎杭の杭頭部の少なくとも先端を被覆部材で覆う被覆工程と、
前記被覆工程の後の前記杭頭部の全体を上方から収納した状態で、前記杭頭部に対して水平方向に移動自在な大きさを有した収納凹部が形成され、かつ、鋼製基礎梁を固定するための締結部材が埋設されたプレキャストコンクリート製の接合部材を、前記杭頭部の全体が前記収納凹部に収納された状態で、水平方向の位置合わせをしながら配置する配置工程と、
前記配置工程の後の前記被覆部材で覆われた前記杭頭部と前記接合部材との前記収納凹部内の隙間に、前記接合部材と前記被覆部材で覆われた前記杭頭部とを結合する結合材を充填する充填工程と、
前記充填工程の後の前記接合部材に鋼製基礎梁を載置し、前記締結部材により、前記接合部材に前記鋼製基礎梁を固定する固定工程と、を少なくとも含み、
前記配置工程の前に、前記杭頭部の周りの地面に、前記接合部材の配置高さを調整する台座部を打設する打設工程を含み、
前記台座部に非接着状態で接触するように、前記接合部材を前記台座部に載置し、
前記打設工程を前記被覆工程の前に行うことを特徴とする基礎杭と鋼製基礎梁の接合方法。 A covering process in which at least the tip of the pile head of the foundation pile protruding from the ground is covered with a covering member,
In a state where the entire pile head after the covering step is stored from above, a storage recess having a size that allows horizontal movement with respect to the pile head is formed, and a steel foundation beam is formed. The arrangement step of arranging the precast concrete joint member in which the fastening member for fixing the pile is embedded while aligning in the horizontal direction with the entire pile head housed in the storage recess.
The joining member and the pile head covered with the covering member are joined to the gap in the storage recess between the pile head covered with the covering member and the joining member after the arrangement step. The filling process of filling the binder and
Placing the steel foundation beams to the joint member after the filling step, by the fastening member, seen at least containing a fixing step, a fixing the steel footing beams on the junction member,
Prior to the placement step, a placing step of placing a pedestal portion for adjusting the placement height of the joining member on the ground around the pile head is included.
The joining member is placed on the pedestal portion so as to come into contact with the pedestal portion in a non-adhesive state.
A method for joining a foundation pile and a steel foundation beam, wherein the casting step is performed before the covering step. 地面から突出した基礎杭の杭頭部の少なくとも先端を被覆部材で覆う被覆工程と、
前記被覆工程の後の前記杭頭部の全体を上方から収納した状態で、前記杭頭部に対して水平方向に移動自在な大きさを有した収納凹部が形成され、かつ、鋼製基礎梁を固定するための締結部材が埋設されたプレキャストコンクリート製の接合部材を、前記杭頭部の全体が前記収納凹部に収納された状態で、水平方向の位置合わせをしながら配置する配置工程と、
前記配置工程の後の前記被覆部材で覆われた前記杭頭部と前記接合部材との前記収納凹部内の隙間に、前記接合部材と前記被覆部材で覆われた前記杭頭部とを結合する結合材を充填する充填工程と、
前記充填工程の後の前記接合部材に鋼製基礎梁を載置し、前記締結部材により、前記接合部材に前記鋼製基礎梁を固定する固定工程と、を少なくとも含み、
前記配置工程の前に、前記杭頭部の周りの地面に、前記接合部材の配置高さを調整する台座部を打設する打設工程を含み、
前記結合材の充填時に前記台座部の天端面に対して、前記収納凹部内の前記結合材を仕切ることにより、前記結合材が前記台座部の前記天端面に非接触となるように、前記被覆工程において、前記台座部の前記天端面に仕切り材を配置することを特徴とする基礎杭と鋼製基礎梁の接合方法。 A covering process in which at least the tip of the pile head of the foundation pile protruding from the ground is covered with a covering member,
In a state where the entire pile head after the covering step is stored from above, a storage recess having a size that allows horizontal movement with respect to the pile head is formed, and a steel foundation beam is formed. The arrangement step of arranging the precast concrete joint member in which the fastening member for fixing the pile is embedded while aligning in the horizontal direction with the entire pile head housed in the storage recess.
The joining member and the pile head covered with the covering member are joined to the gap in the storage recess between the pile head covered with the covering member and the joining member after the arrangement step. The filling process of filling the binder and
Placing the steel foundation beams to the joint member after the filling step, by the fastening member, seen at least containing a fixing step, a fixing the steel footing beams on the junction member,
Prior to the placement step, a placing step of placing a pedestal portion for adjusting the placement height of the joining member on the ground around the pile head is included.
By partitioning the binder in the storage recess with respect to the top surface of the pedestal when the binder is filled, the coating is provided so that the binder does not contact the top surface of the pedestal. A method of joining a foundation pile and a steel foundation beam, which comprises arranging a partition member on the top surface of the pedestal portion in the process. 前記結合材の充填時に前記台座部の天端面に対して、前記収納凹部内の前記結合材が仕切られるように、前記被覆工程において、前記台座部の前記天端面に仕切り材を配置することを特徴とする請求項４に記載の基礎杭と鋼製基礎梁の接合方法。 In the coating step, the partition material is arranged on the top end surface of the pedestal portion so that the binder material in the storage recess is partitioned from the top end surface of the pedestal portion when the binder is filled. The method for joining a foundation pile and a steel foundation beam according to claim 4.
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