JP2009280985A - Structure for connecting pile and column together - Google Patents

Structure for connecting pile and column together Download PDF

Info

Publication number
JP2009280985A
JP2009280985A JP2008131722A JP2008131722A JP2009280985A JP 2009280985 A JP2009280985 A JP 2009280985A JP 2008131722 A JP2008131722 A JP 2008131722A JP 2008131722 A JP2008131722 A JP 2008131722A JP 2009280985 A JP2009280985 A JP 2009280985A
Authority
JP
Japan
Prior art keywords
pile
column
end surface
connecting plate
steel pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2008131722A
Other languages
Japanese (ja)
Inventor
Takehiko Kato
武彦 加藤
Norio Watanabe
則雄 渡辺
Hisayoshi Ishibashi
久義 石橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kumagai Gumi Co Ltd
Original Assignee
Kumagai Gumi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP2008131722A priority Critical patent/JP2009280985A/en
Publication of JP2009280985A publication Critical patent/JP2009280985A/en
Withdrawn legal-status Critical Current

Links

Images

Landscapes

  • Foundations (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an easy connecting structure with a simple constitution, which can easily resist an axial force applied to a column. <P>SOLUTION: This structure 1 for connecting the pile and the column together includes: the pile 2 which is formed like a pipe and installed to be buried in ground; a connecting plate 4 which is equipped with a through-hole passing through top and under surfaces, the under surface of which is installed in the state of covering an upper end surface of the pile and connected to the upper end surface of the pile, and the through-hole (filling hole 20) of which communicates with the inside of the pile; the column 3 which is formed like a pipe, and the lower end surface of which is connected to the top surface of the connecting plate; and a flexing resistance portion 5 which is provided in such a manner as to be extended to the inside of the pile with respect to the under surface of the connecting plate so as to resist bending stress applied to the column. The column 3 and the pile 2 are installed in such a manner that the center (a) of the column 3 corresponds to that (a) of the pile 2, so that the lower end surface 17 of the column 3 can be positioned directly above the upper end surface 15 of the pile 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、杭と柱とが結合された杭と柱との結合構造体であって、施工が容易で、柱に加わる軸力に抵抗できる簡単な構成の結合構造体に関する。   The present invention relates to a combined structure of a pile and a column in which the pile and the column are combined, and relates to a combined structure having a simple configuration that can be easily constructed and can resist the axial force applied to the column.

柱の下端部が管状に形成された杭の上端側から杭の内側に挿入され、コンクリートが杭の内側に挿入された柱の下端部の周りを埋めるように杭の内側に充填されるとともに、杭の上端に結合された杭頭接合金物と柱の周囲に一体に取り付けられた環状のベースプレートとがボルト及びナットによって締結結合された構成の杭と柱との結合構造体が知られている（例えば、特許文献１等参照）。
特開２００１−２９５２８６号公報 The lower end of the column is inserted into the inside of the pile from the upper end side of the pile formed in a tubular shape, and the concrete is filled inside the pile so as to fill around the lower end of the column inserted inside the pile, A combined structure of a pile and a column in which a pile head joint hardware coupled to the upper end of the pile and an annular base plate attached integrally around the column are fastened and coupled by bolts and nuts is known ( For example, see Patent Document 1).
JP 2001-295286 A

上述した従来の杭と柱との結合構造体によれば、柱の下端部が杭の内側に挿入され、柱の周囲に連結された環状のベースプレートと杭の上端とがボルト及びナットによって締結結合された構成であるため、柱の下端面に加わる軸力（垂直荷重）がベースプレートを経由して杭の上端面に伝達されない構造となっている。従って、柱に加わる軸力に抵抗するためには、杭の内側に挿入された柱の下端部とコンクリートとの付着面積、及び、杭の内周面とコンクリートとの付着面積を大きくする必要があるため、コンクリートの充填量を多くする必要がある。コンクリートの充填量を多くする場合、施工が煩雑となる。このため、従来の杭と柱との結合構造体では、杭の内側に挿入される柱の下端部の外周面に水平方向に延長するスタッドを複数設けて、これらスタッドとコンクリートとの付着力が向上することによって、上記付着面積を大きくしなくても柱に加わる軸力に抵抗できる構造としている。しかしながら、スタッドを設けた構成では、構成が複雑となるばかりでなく、柱に力が加わった場合に、スタッドがコンクリートを押圧してコンクリートにひび割れが生じることがある。このようにコンクリートにひび割れが生じてしまうと、地震時に柱に加わる軸力に抵抗できなくなる。
即ち、従来の杭と柱との結合構造体によれば、施工が煩雑であったり、構成が複雑であったり、柱に加わる軸力に抵抗できなくなるといった課題があった。
そこで、本発明は、施工が容易であって、しかも、柱に加わる軸力に抵抗できる簡単な構成の結合構造体を得ることを目的とする。 According to the conventional pile-column connection structure described above, the lower end of the column is inserted inside the pile, and the annular base plate connected to the periphery of the column and the upper end of the pile are fastened and connected by bolts and nuts. Therefore, the axial force (vertical load) applied to the lower end surface of the column is not transmitted to the upper end surface of the pile via the base plate. Therefore, in order to resist the axial force applied to the pillar, it is necessary to increase the adhesion area between the lower end of the pillar inserted inside the pile and the concrete and the adhesion area between the inner peripheral surface of the pile and the concrete. Therefore, it is necessary to increase the concrete filling amount. When increasing the filling amount of concrete, the construction becomes complicated. For this reason, in the conventional combined structure of a pile and a pillar, a plurality of studs extending in the horizontal direction are provided on the outer peripheral surface of the lower end portion of the pillar inserted inside the pile, and the adhesion force between the stud and the concrete is provided. By improving the structure, the structure can resist the axial force applied to the column without increasing the adhesion area. However, in the configuration in which the stud is provided, not only the configuration becomes complicated, but also when a force is applied to the column, the stud may press the concrete and crack the concrete. If concrete is cracked in this way, it becomes impossible to resist the axial force applied to the column during an earthquake.
That is, according to the conventional combined structure of a pile and a column, there are problems that the construction is complicated, the configuration is complicated, and the axial force applied to the column cannot be resisted.
Therefore, an object of the present invention is to obtain a coupled structure having a simple configuration that is easy to construct and can resist the axial force applied to the column.

本発明に係る杭と柱との結合構造体は、管状に形成されて地盤中に埋め込まれるように設置された杭と、上面と下面とに貫通する貫通孔を備えて杭の上端面を覆うように設置された下面と杭の上端面とが接続されて貫通孔が杭の内側に連通した連結板と、管状に形成されて下端面と連結板の上面とが接続された柱と、柱に加わる曲げ応力に抵抗するために連結板の下面より杭の内側に延長するように設けられた曲げ抵抗部とを備え、柱の中心と杭の中心とが一致するように柱と杭とが設置されて柱の下端面が杭の上端面の真上に位置されたことを特徴とする。
本発明に係る杭と柱との結合構造体は、管状に形成されて地盤中に埋め込まれるように設置された杭と、上面と下面とに貫通する貫通孔を備えて杭の上端面を覆うように設置された下面と杭の上端面とが接続されて貫通孔が杭の内側に連通した連結板と、断面長方形の管状に形成されて下端面と連結板の上面とが接続された柱と、柱に加わる曲げ応力に抵抗するために連結板の下面より杭の内側に延長するように設けられた曲げ抵抗部とを備え、柱の中心と杭の中心とが一致するように柱と杭とが設置されて柱の下端面の長方形の一対の短辺部分が杭の上端面の真上に位置されたことを特徴とする。
曲げ抵抗部は、連結板の下面に取り付けられて杭の内側の下方に延長するように設けられた定着体と、柱に加わる曲げ応力に抵抗するための杭の内周面との付着力及び定着体との付着力を得るために杭の内側に連通する孔を介して杭の内側に充填された充填材とにより形成されたことも特徴とする。
定着体が鋼管により形成され、連結板の下面と鋼管の上端面とが連結され、充填材が鋼管の内側に充填されるとともに鋼管の外周面と杭の内周面との間に充填されたことも特徴とする。 The combined structure of a pile and a pillar according to the present invention includes a pile formed so as to be embedded in the ground and a through-hole penetrating the upper surface and the lower surface, and covers the upper end surface of the pile. A connecting plate in which the lower surface and the upper end surface of the pile are connected so that the through hole communicates with the inside of the pile, a column formed in a tubular shape and connected to the lower end surface and the upper surface of the connecting plate, and a column In order to resist the bending stress applied to the column, it is provided with a bending resistance portion provided so as to extend from the lower surface of the connecting plate to the inside of the pile, and the column and the pile are arranged so that the center of the column and the center of the pile coincide with each other. It is installed and the lower end surface of the pillar is located right above the upper end surface of the pile.
The combined structure of a pile and a pillar according to the present invention includes a pile formed so as to be embedded in the ground and a through-hole penetrating the upper surface and the lower surface, and covers the upper end surface of the pile. A connecting plate in which the lower surface and the upper end surface of the pile are connected so that the through hole communicates with the inside of the pile, and a column in which the lower end surface and the upper surface of the connecting plate are connected to each other, formed in a tubular shape with a rectangular cross section And a bending resistance portion provided so as to extend from the lower surface of the connecting plate to the inside of the pile in order to resist bending stress applied to the column, and the column and the center of the pile are aligned with each other. The pile is installed, and a pair of rectangular short sides on the lower end surface of the column are positioned directly above the upper end surface of the pile.
The bending resistance portion is attached to the lower surface of the connecting plate and is attached to the fixing body provided to extend below the inside of the pile, and the adhesive force between the inner peripheral surface of the pile to resist bending stress applied to the column, and In order to obtain the adhesion to the fixing body, it is also characterized in that it is formed by a filler filled inside the pile through a hole communicating with the inside of the pile.
The fixing body is formed of a steel pipe, the lower surface of the connecting plate and the upper end surface of the steel pipe are connected, and the filler is filled inside the steel pipe and is filled between the outer peripheral surface of the steel pipe and the inner peripheral surface of the pile. It is also characterized.

本発明による杭と柱との結合構造体によれば、柱の中心と杭の中心とが一致するように柱と杭とが設置されて柱の下端面が杭の上端面の真上に位置されたり、柱の中心と杭の中心とが一致するように柱と杭とが設置されて柱の下端面の長方形の一対の短辺部分が杭の上端面の真上に位置された構成なので、施工が容易であり、しかも、柱に加わる軸力が連結板を介して杭の上端面に伝達されるために、柱に加わる軸力を連結板と杭の断面とで支持できて、柱に加わる軸力に抵抗できる簡単な構成の結合構造体を得ることができる。
曲げ抵抗部が、定着体と充填材とにより形成されたので、柱に加わる曲げ応力に対しては、定着体と充填材との付着力、及び、杭の内周面と充填材との付着力で抵抗する構造が得られる。従って、施工が容易で、かつ、柱に加わる軸力と柱に加わる曲げ応力との両方に適切に抵抗できる簡単な構成の結合構造体を得ることができる。
定着体が鋼管により形成され、連結板の下面と鋼管の上端面とが連結され、充填材が鋼管の鋼管の内側に充填されるとともに鋼管の外周面と杭の内周面との間に充填されたので、施工が容易で、かつ、柱に加わる軸力と柱に加わる曲げ応力との両方に適切に抵抗できる簡単な構成の結合構造体を得ることができる。 According to the combined structure of a pile and a column according to the present invention, the column and the pile are installed so that the center of the column and the center of the pile coincide with each other, and the lower end surface of the column is located directly above the upper end surface of the pile. Since the pillar and the pile are installed so that the center of the pillar and the center of the pile coincide with each other, the pair of rectangular short sides of the lower end face of the pillar is located directly above the upper end face of the pile. Because the axial force applied to the pillar is transmitted to the upper end surface of the pile via the connecting plate, the axial force applied to the column can be supported by the connecting plate and the cross section of the pile, It is possible to obtain a coupling structure having a simple configuration that can resist the axial force applied to the.
Since the bending resistance portion is formed by the fixing body and the filler, the adhesive force between the fixing body and the filler and the inner peripheral surface of the pile and the filler are applied to the bending stress applied to the column. A structure that resists by force is obtained. Therefore, it is possible to obtain a coupled structure having a simple configuration that is easy to construct and can appropriately resist both the axial force applied to the column and the bending stress applied to the column.
The fixing body is formed of a steel pipe, the lower surface of the connecting plate and the upper end surface of the steel pipe are connected, and the filler is filled inside the steel pipe of the steel pipe and filled between the outer peripheral surface of the steel pipe and the inner peripheral surface of the pile. Therefore, it is possible to obtain a coupled structure having a simple configuration that is easy to construct and can appropriately resist both the axial force applied to the column and the bending stress applied to the column.

最良の形態１
図１（ａ）は結合構造体の平面図、図１（ｂ）は図１（ａ）のＡ−Ａ断面に相当する結合構造体の縦断面図である。図１を参照し、杭と柱とが結合された杭と柱との結合構造体１の構造を説明する。結合構造体１は、杭２と、柱３と、連結板４と、曲げ抵抗部５とを備える。杭２は、遠心締固め方法と呼ばれる製造方法によって断面円形の円管状に形成されて地盤６中に埋め込まれるように設置された杭であり、例えば、遠心力高強度プレストレストコンクリート杭（以下、ＰＨＣ杭）などの既製杭である。杭２は、例えば、上端面と下端面とに貫通する貫通孔６０を有した断面円形の円管状を形成するコンクリート部１１と、コンクリート部１１に緊張を与えるために円管状のコンクリート部１１の管軸に沿って上下に貫通するように設けられた複数のＰＣ鋼線１２と、円管状のコンクリート部１１の環状の上端面及び下端面に取り付けられてＰＣ鋼線１２の両端部が定着された金属製の端板１３とを備える。端板１３は、貫通孔６０と一致する径に形成されてコンクリート部１１の上端面及び下端面に取り付けられることによって貫通孔６０と連続する同径の貫通孔６１を備える。端板１３の外周径とコンクリート部１１の上端面及び下端面の外周径とがほぼ同じ径に形成される。柱３は、例えば、断面正方形の管状に形成された角形中空鉄骨柱である。連結板４は、例えば、外形寸法が杭２の外径寸法と同程度の寸法に形成された金属製の円形平板により形成される。連結板４は、杭２の上端面１５（端板１３の上端面）を覆うように設置されて杭２の上端面１５と接続された下面１６と、柱３の下端面１７と接続された上面１８と、上面１８と下面１６とに貫通して杭２の内側１９（杭の内周面２９で囲まれた領域）に連通する貫通孔により形成された充填孔２０とを備える。充填孔２０は、例えば、連結板４の円形の中心を孔の中心とした円形孔により形成される。充填孔２０の孔径は、杭２の内側１９の断面径（即ち、杭２の内径）よりも小さい後述の鋼管４０の内径よりもさらに小さい径に形成される。 Best form 1
1A is a plan view of the coupling structure, and FIG. 1B is a longitudinal sectional view of the coupling structure corresponding to the AA cross section of FIG. 1A. With reference to FIG. 1, the structure of the combined structure 1 of a pile and a column in which the pile and the column are combined will be described. The coupling structure 1 includes a pile 2, a column 3, a connecting plate 4, and a bending resistance portion 5. The pile 2 is a pile that is formed in a circular tube having a circular cross section by a manufacturing method called a centrifugal compaction method and is installed so as to be embedded in the ground 6. For example, a centrifugal high strength prestressed concrete pile (hereinafter referred to as PHC) Ready-made piles. The pile 2 includes, for example, a concrete part 11 that forms a circular tube with a circular cross section having a through-hole 60 that passes through an upper end surface and a lower end surface, and a circular concrete part 11 for applying tension to the concrete part 11. A plurality of PC steel wires 12 provided so as to penetrate vertically along the tube axis and the annular upper end surface and lower end surface of the concrete portion 11 are fixed to both ends of the PC steel wire 12. A metal end plate 13. The end plate 13 is provided with a through-hole 61 having the same diameter as the through-hole 60 by being attached to the upper end surface and the lower end surface of the concrete portion 11. The outer peripheral diameter of the end plate 13 and the outer peripheral diameters of the upper end surface and the lower end surface of the concrete part 11 are formed to have substantially the same diameter. The pillar 3 is, for example, a square hollow steel pillar formed in a tubular shape having a square cross section. The connecting plate 4 is formed of, for example, a metal circular flat plate whose outer dimension is approximately the same as the outer diameter of the pile 2. The connecting plate 4 is installed so as to cover the upper end surface 15 (the upper end surface of the end plate 13) of the pile 2 and is connected to the lower surface 16 connected to the upper end surface 15 of the pile 2 and the lower end surface 17 of the column 3. An upper surface 18 and a filling hole 20 formed by a through-hole penetrating the upper surface 18 and the lower surface 16 and communicating with the inner side 19 (region surrounded by the inner peripheral surface 29 of the pile) of the pile 2 are provided. The filling hole 20 is formed by, for example, a circular hole whose center is the circular center of the connecting plate 4. The hole diameter of the filling hole 20 is formed to be smaller than the inner diameter of a later-described steel pipe 40 smaller than the cross-sectional diameter of the inner side 19 of the pile 2 (that is, the inner diameter of the pile 2).

杭２の中心ａと連結板４の中心ａと柱３の中心ａとが同じ位置となるように、つまり、杭２と連結板４と柱３とが同軸となるように、杭２の上端面１５と連結板４の下面１６とが接続され、連結板４の上面１８と柱３の下端面１７とが接続される。つまり、連結板４としては、杭２の内側１９に連通する充填孔２０を備えるとともに、杭２の上端面１５の全面を覆い、かつ、柱３の下端面１７の全面が載置される板が用いられる。即ち、柱３の中心ａと杭２の中心ａとが一致するように柱３と杭２とが設置されて、柱３の下端面１７の全周と連結板４の上面１８とが溶接された溶接部２１によって接続されたとともに、杭２の上端面１５の全周と連結板４の下面１６とが溶接された溶接部２２によって接続されたことによって、柱３の下端面１７の全体が杭２の上端面１５の真上に位置された構成とした。   The top of the pile 2 so that the center a of the pile 2, the center a of the connecting plate 4 and the center a of the column 3 are in the same position, that is, the pile 2, the connecting plate 4 and the column 3 are coaxial. The end surface 15 and the lower surface 16 of the connecting plate 4 are connected, and the upper surface 18 of the connecting plate 4 and the lower end surface 17 of the column 3 are connected. That is, as the connecting plate 4, a plate provided with the filling hole 20 communicating with the inner side 19 of the pile 2, covering the entire upper end surface 15 of the pile 2 and mounting the entire lower end surface 17 of the column 3. Is used. That is, the column 3 and the pile 2 are installed so that the center a of the column 3 and the center a of the pile 2 coincide with each other, and the entire circumference of the lower end surface 17 of the column 3 and the upper surface 18 of the connecting plate 4 are welded. The entire lower end surface 17 of the column 3 is connected by the welded portion 22 in which the entire circumference of the upper end surface 15 of the pile 2 and the lower surface 16 of the connecting plate 4 are welded together. It was set as the structure located right above the upper end surface 15 of the pile 2. FIG.

曲げ抵抗部５は、柱３に加わる曲げ応力に抵抗するために連結板４の下面１６より杭２の内側１９に延長するように設けられた構成であり、連結板４の下面１６に取り付けられて杭２の内側１９に延長するように設けられた定着体３０と、杭２の内周面２９との付着力、及び、定着体３０との付着力を得るために、杭２の内側１９に連通する充填孔２０を介して杭の内側１９に充填されたモルタルやコンクリートのような充填材３１とにより形成される。定着体３０は、例えば、連結板４の下面１６に取り付けられて杭２の内周面２９に沿って杭２の内側１９の下方に延長するように設けられた鋼管４０により形成され、鋼管４０の上端面４１と連結板４の下面１６とが溶接などで連結される。充填材３１は、杭２の内側１９に設置された鋼管４０の外周面４２及び内周面４３を覆うように杭２の内側１９に充填される。即ち、充填材３１が、鋼管４０の内周面４３に接触するように鋼管４０の内側に充填されるとともに、鋼管４０の外周面４２と杭２の内周面２９とに接触するように鋼管４０の外周面４２と杭２の内周面２９との間に充填されたので、柱２に加わる曲げ応力に抵抗するための付着力として、充填材３１と杭２の内周面２９との付着力、及び、充填材３１と鋼管４０との付着力が得られる。   The bending resistance portion 5 is configured to extend from the lower surface 16 of the connecting plate 4 to the inner side 19 of the pile 2 in order to resist bending stress applied to the column 3, and is attached to the lower surface 16 of the connecting plate 4. In order to obtain adhesion between the fixing body 30 provided to extend to the inner side 19 of the pile 2 and the inner peripheral surface 29 of the pile 2 and adhesion with the fixing body 30, the inner side 19 of the pile 2 It is formed by a filling material 31 such as mortar or concrete filled in the inner side 19 of the pile through a filling hole 20 communicating with the inside. The fixing body 30 is formed by, for example, a steel pipe 40 that is attached to the lower surface 16 of the connecting plate 4 and extends along the inner peripheral surface 29 of the pile 2 and below the inner side 19 of the pile 2. The upper end surface 41 and the lower surface 16 of the connecting plate 4 are connected by welding or the like. The filler 31 is filled in the inner side 19 of the pile 2 so as to cover the outer peripheral surface 42 and the inner peripheral surface 43 of the steel pipe 40 installed on the inner side 19 of the pile 2. In other words, the filler 31 is filled inside the steel pipe 40 so as to contact the inner peripheral surface 43 of the steel pipe 40, and the steel pipe so as to contact the outer peripheral surface 42 of the steel pipe 40 and the inner peripheral surface 29 of the pile 2. 40 between the outer peripheral surface 42 of the pile 2 and the inner peripheral surface 29 of the pile 2, as an adhesive force to resist bending stress applied to the column 2, the filler 31 and the inner peripheral surface 29 of the pile 2 Adhesive force and adhesive force between the filler 31 and the steel pipe 40 are obtained.

結合構造体１は、地盤６に形成された図外の杭挿入孔内にセメントミルクやソイルセメントのような杭周固定液を入れて、杭周固定液の入った杭挿入孔内に杭２の下端側から杭２を挿入する。そして、下面１６と鋼管４０の上端面４１とが溶接された連結板４の下面１６と杭２の上端面１５の全周とを溶接により接続する。この場合、連結板４の充填孔２０が杭２の内側１９の上方に位置するように連結板４が設けられる。そして、充填孔２０から杭２の内側１９に充填材３１を充填する。この場合、図１（ｂ）に示すように、杭２の内側１９に挿入される鋼管４０の下方に杭２の内周面２９と接触する外周面を備えた充填材受け皿５０が位置するように、この充填材受け皿５０を鋼管４０に取り付けておけば、連結板４の下面１６と充填材受け皿５０との間に充填材３１を密実に充填できるとともに、充填材３１の充填量を少なくできる。また、鋼管４０の外周面４２と杭２の内周面２９との間の上方に位置する連結板４には、連結板４の下面１６と上面１８とに貫通する空気逃がし孔５１が設けられている。空気逃がし孔５１を設けたことで、鋼管４０の外周面４２と杭２の内周面２９との間に充填材３１を密実に充填できる。空気逃がし孔５１は、図１（ａ）に示すように、複数設けることが好ましい。そして、連結板４の上面１８と柱３の下端面１７の全周とが溶接により接続される。   The combined structure 1 is formed by inserting a pile circumference fixing liquid such as cement milk or soil cement into a pile insertion hole (not shown) formed in the ground 6 and placing the pile 2 in the pile insertion hole containing the pile circumference fixing liquid. The pile 2 is inserted from the lower end side. And the lower surface 16 of the connection plate 4 with which the lower surface 16 and the upper end surface 41 of the steel pipe 40 were welded, and the perimeter of the upper end surface 15 of the pile 2 are connected by welding. In this case, the connecting plate 4 is provided so that the filling hole 20 of the connecting plate 4 is located above the inner side 19 of the pile 2. And the filler 31 is filled into the inner side 19 of the pile 2 from the filling hole 20. In this case, as shown in FIG. 1 (b), a filler tray 50 having an outer peripheral surface in contact with the inner peripheral surface 29 of the pile 2 is positioned below the steel pipe 40 inserted into the inner side 19 of the pile 2. Further, if this filler tray 50 is attached to the steel pipe 40, the filler 31 can be filled densely between the lower surface 16 of the connecting plate 4 and the filler tray 50, and the filling amount of the filler 31 can be reduced. . The connecting plate 4 located between the outer peripheral surface 42 of the steel pipe 40 and the inner peripheral surface 29 of the pile 2 is provided with an air escape hole 51 that penetrates the lower surface 16 and the upper surface 18 of the connecting plate 4. ing. By providing the air escape hole 51, the filler 31 can be filled densely between the outer peripheral surface 42 of the steel pipe 40 and the inner peripheral surface 29 of the pile 2. A plurality of air escape holes 51 are preferably provided as shown in FIG. And the upper surface 18 of the connection board 4 and the perimeter of the lower end surface 17 of the pillar 3 are connected by welding.

最良の形態１の結合構造体１によれば、柱３の下端面１７が連結板４の上面１８に接続され、杭２の上端面１５が連結板４の下面１６に接続され、柱３の中心ａと杭２の中心ａとが一致するように柱３と杭２とが設置されて柱３の下端面１７の全体が杭２の上端面１５の真上に位置された構成としたので、施工が容易であり、しかも、柱３に加わる軸力が連結板４を介して杭２の上端面１５に伝達されるために、柱３に加わる軸力を連結板４と杭２の断面とで支持できて、柱３に加わる軸力に抵抗できる簡単な構成の結合構造体１を得ることができる。特に、連結板４として、杭２の上端面１５の全面を覆い、かつ、柱３の下端面１７の全面が載置される板を用いたことによって、柱３からの軸力を杭２の上端面１５全体で受けることができて杭全体で軸力を負担できるようになり、大きな軸力に耐えられる結合構造体１を得ることができる。
また、柱３に加わる曲げ応力に対しては、鋼管４０の内周面４３に接触するように鋼管４０の内側５５に充填された充填材３１と鋼管４０の内周面４３との付着力、鋼管４０の外周面４２と杭２の内周面２９とに接触するように鋼管４０の外周面４２と杭２の内周面２９との間に充填された充填材３１によって得られる鋼管４０の外周面４２と充填材３１との付着力、及び、杭２の内周面２９と充填材３１との付着力によって抵抗できる。
よって、施工が容易で、かつ、柱３に加わる軸力と柱３に加わる曲げ応力との両方に適切に抵抗できる簡単な構成の結合構造体１を得ることができる。 According to the coupling structure 1 of the best mode 1, the lower end surface 17 of the pillar 3 is connected to the upper surface 18 of the connecting plate 4, the upper end surface 15 of the pile 2 is connected to the lower surface 16 of the connecting plate 4, and Since the column 3 and the pile 2 are installed so that the center a and the center a of the pile 2 coincide with each other, and the entire lower end surface 17 of the column 3 is positioned directly above the upper end surface 15 of the pile 2. Since the construction is easy and the axial force applied to the pillar 3 is transmitted to the upper end surface 15 of the pile 2 via the connecting plate 4, the axial force applied to the pillar 3 is cross-sectioned between the connecting plate 4 and the pile 2. Thus, it is possible to obtain a coupling structure 1 having a simple configuration that can support the axial force applied to the column 3. In particular, by using a plate that covers the entire upper end surface 15 of the pile 2 and on which the entire lower end surface 17 of the column 3 is placed as the connecting plate 4, the axial force from the column 3 is reduced. It can receive in the whole upper end surface 15, can bear an axial force in the whole pile, and can obtain the joint structure 1 which can endure a big axial force.
In addition, for the bending stress applied to the column 3, the adhesive force between the filler 31 filled in the inner side 55 of the steel pipe 40 and the inner peripheral face 43 of the steel pipe 40 so as to contact the inner peripheral face 43 of the steel pipe 40, The steel pipe 40 obtained by the filler 31 filled between the outer peripheral surface 42 of the steel pipe 40 and the inner peripheral surface 29 of the pile 2 so as to come into contact with the outer peripheral surface 42 of the steel pipe 40 and the inner peripheral surface 29 of the pile 2. Resistance can be achieved by the adhesive force between the outer peripheral surface 42 and the filler 31 and the adhesive force between the inner peripheral surface 29 of the pile 2 and the filler 31.
Therefore, it is possible to obtain the coupled structure 1 having a simple configuration that is easy to construct and can appropriately resist both the axial force applied to the column 3 and the bending stress applied to the column 3.

最良の形態２
図２（ａ）は結合構造体の平面図、図２（ｂ）は図２（ａ）のＡ−Ａ断面に相当する結合構造体の縦断面図である。柱３として、例えば、図２（ａ）；図２（ｂ）に示すような、断面円形の管状に形成された円形中空鉄骨柱を使用して、最良の形態１と同様に、柱３の中心ａと杭２の中心ａとが一致するように柱３と杭２とが設置されて柱３の下端面１７の全体が杭２の上端面１５の真上に位置された構成の結合構造体１とした。これにより、最良の形態１と同じ効果を奏する結合構造体１を得ることができる。 Best form 2
2A is a plan view of the coupling structure, and FIG. 2B is a longitudinal sectional view of the coupling structure corresponding to the AA section of FIG. 2A. As the column 3, for example, a circular hollow steel column formed in a tubular shape having a circular cross section as shown in FIG. 2A; FIG. The combined structure in which the column 3 and the pile 2 are installed so that the center a and the center a of the pile 2 coincide with each other, and the entire lower end surface 17 of the column 3 is located directly above the upper end surface 15 of the pile 2 Body 1 was designated. Thereby, the coupling structure 1 having the same effect as the best mode 1 can be obtained.

最良の形態３
図３（ａ）は結合構造体の平面図、図３（ｂ）は図３（ａ）のＡ−Ａ断面に相当する結合構造体の縦断面図である。柱３として、例えば、図３（ａ）；図３（ｂ）に示すような、断面長方形の管状に形成された角形中空鉄骨柱を使用して、柱３の中心ａと杭２の中心ａとが一致するように柱３と杭２とが設置され、かつ、柱３の下端面１７の長方形の一対の短辺部分４５；４５が杭２の上端面１５の真上に位置された構成の結合構造体１とした。これにより、最良の形態１と同様の効果を奏する結合構造体１を得ることができる。 Best form 3
3A is a plan view of the coupling structure, and FIG. 3B is a longitudinal sectional view of the coupling structure corresponding to the AA section of FIG. 3A. As the pillar 3, for example, a square hollow steel pillar formed in a tubular shape having a rectangular cross section as shown in FIG. 3A; FIG. 3B is used, and the center a of the pillar 3 and the center a of the pile 2 are used. The pillar 3 and the pile 2 are installed so that they coincide with each other, and a pair of rectangular short side portions 45; 45 of the lower end surface 17 of the pillar 3 are positioned directly above the upper end surface 15 of the pile 2 The bonded structure 1 was obtained. Thereby, the coupling structure 1 having the same effects as the best mode 1 can be obtained.

最良の形態４
杭２の内周面２９に図外の凹凸を形成し、かつ、鋼管４０の外周面４２及び内周面４３に図外の凹凸を形成した構成の結合構造体１とした。杭２の内周面２９に凹凸を形成したことにより、充填材３１と杭２の内周面２９との付着力を大きくでき、鋼管４０の外周面４２及び内周面４３に凹凸を形成したことにより、充填材３１と鋼管４０との付着力を大きくできるので、柱３に加わる大きな曲げ応力に抵抗できる結合構造体１を得ることができる。 Best form 4
The coupling structure 1 has a configuration in which irregularities outside the figure are formed on the inner peripheral surface 29 of the pile 2 and irregularities outside the figure are formed on the outer peripheral surface 42 and the inner peripheral surface 43 of the steel pipe 40. By forming irregularities on the inner peripheral surface 29 of the pile 2, the adhesive force between the filler 31 and the inner peripheral surface 29 of the pile 2 can be increased, and irregularities are formed on the outer peripheral surface 42 and the inner peripheral surface 43 of the steel pipe 40. Thereby, since the adhesive force of the filler 31 and the steel pipe 40 can be enlarged, the joint structure 1 which can resist the big bending stress added to the pillar 3 can be obtained.

最良の形態５
曲げ抵抗部５を形成する定着体３０を、図外の複数の鉄筋により形成した結合構造体としても良い。最良の形態５による結合構造体によれば、柱３に加わる曲げ応力に対しては、複数の鉄筋と杭２の内側に充填された充填材３１との付着力、杭２の内周面２９との充填材３１との付着力によって抵抗できる。 Best form 5
The fixing body 30 forming the bending resistance portion 5 may be a combined structure formed by a plurality of reinforcing bars not shown. According to the connection structure according to the best mode 5, with respect to the bending stress applied to the column 3, the adhesive force between the plurality of reinforcing bars and the filler 31 filled inside the pile 2, the inner peripheral surface 29 of the pile 2. It can resist by the adhesive force with the filler 31.

曲げ抵抗部５を備えない結合構造体１としてもよい。このような結合構造体１であっても、低層建物のように、柱３に加わる曲げ応力に対する抵抗力が小さくてもよい場合において使用できて、本発明の効果を達成できるからである。
杭２として、遠心力高強度プレストレスト鉄筋コンクリート杭（ＰＲＣ杭）、外殻鋼管付きコンクリート杭（ＳＣ杭）などの既製杭を用いれば、柱に加わる曲げ応力に対する抵抗力を大きくできる。
予め杭２と連結板４とが溶接による溶接部２２で接続されて柱３と連結板４とが溶接による溶接部２１で接続された状態の杭２の部分を杭挿入孔に挿入したり、予め杭２と連結板４とが溶接による溶接部２２で接続された状態の杭２の部分を杭挿入孔に挿入したり、予め柱３と連結板４とが溶接による溶接部２１で接続された状態の杭２の部分を杭挿入孔に挿入してもよい。
連結板４としては、杭２の内側１９に連通する充填孔２０を備えるとともに、図１；２に示すように柱３の下端面１７の全面を載置可能な面積、あるいは、図３に示すように柱３の下端面１７の長方形の一対の短辺部分４５；４５を載置可能な面積を備えた板であって、杭２の上端面１５の一部を覆う面積を有した板を用いればよく、形状は問わない。
杭２は、断面正方形の管状に形成された既製杭を使用してもよい。 A coupling structure 1 that does not include the bending resistance portion 5 may be used. This is because even such a coupling structure 1 can be used when the resistance to bending stress applied to the pillar 3 may be small, such as a low-rise building, and the effect of the present invention can be achieved.
If the ready-made piles, such as a centrifugal high-strength prestressed reinforced concrete pile (PRC pile) and a concrete pile with an outer shell steel pipe (SC pile), are used as the pile 2, resistance to bending stress applied to the column can be increased.
A portion of the pile 2 in which the pile 2 and the connecting plate 4 are connected in advance by the welded portion 22 by welding and the column 3 and the connecting plate 4 are connected by the welded portion 21 by welding is inserted into the pile insertion hole, The part of the pile 2 in a state where the pile 2 and the connecting plate 4 are connected in advance by the welded portion 22 by welding is inserted into the pile insertion hole, or the column 3 and the connecting plate 4 are connected in advance by the welded portion 21 by welding. You may insert the part of the pile 2 in the state of the state into the pile insertion hole.
The connecting plate 4 includes a filling hole 20 communicating with the inner side 19 of the pile 2 and, as shown in FIGS. 1 and 2, an area where the entire lower end surface 17 of the column 3 can be placed, or as shown in FIG. 3. A plate having an area on which the pair of rectangular short side portions 45; 45 of the lower end surface 17 of the column 3 can be placed, and having an area covering a part of the upper end surface 15 of the pile 2 Any shape can be used.
The pile 2 may be a ready-made pile formed in a tubular shape having a square cross section.

結合構造体を示す図（最良の形態１）。The figure which shows a joint structure (best form 1). 結合構造体を示す図（最良の形態２）。The figure which shows a joint structure (best form 2). 結合構造体を示す図（最良の形態３）。The figure which shows a joint structure (best form 3).

符号の説明Explanation of symbols

１ 杭と柱との結合構造体、２ 杭、３ 柱、４ 連結板、５ 曲げ抵抗部、
１５ 杭の上端面、１６ 連結板の下面、１７ 柱の下端面、
１８ 連結板の上面、１９ 杭の内側、２０ 充填孔（貫通孔）、
２９ 杭の内周面、３０ 定着体、３１ 充填材、４０ 鋼管（定着体）、
４１ 鋼管の上端面、４２ 鋼管の外周面、４３ 鋼管の内周面、
５５ 鋼管の内側。 1 Combined structure of pile and column, 2 pile, 3 column, 4 connecting plate, 5 bending resistance,
15 Upper end surface of pile, 16 Lower surface of connecting plate, 17 Lower end surface of pillar,
18 upper surface of connecting plate, 19 inside of pile, 20 filling hole (through hole),
29 inner peripheral surface of pile, 30 fixing body, 31 filler, 40 steel pipe (fixing body),
41 upper end surface of steel pipe, 42 outer peripheral surface of steel pipe, 43 inner peripheral surface of steel pipe,
55 Inside the steel pipe.

Claims (4)

管状に形成されて地盤中に埋め込まれるように設置された杭と、上面と下面とに貫通する貫通孔を備えて杭の上端面を覆うように設置された下面と杭の上端面とが接続されて貫通孔が杭の内側に連通した連結板と、管状に形成されて下端面と連結板の上面とが接続された柱と、柱に加わる曲げ応力に抵抗するために連結板の下面より杭の内側に延長するように設けられた曲げ抵抗部とを備え、柱の中心と杭の中心とが一致するように柱と杭とが設置されて柱の下端面が杭の上端面の真上に位置されたことを特徴とする杭と柱との結合構造体。   A pile formed in a tubular shape and embedded in the ground, and a lower surface installed to cover the upper end surface of the pile with a through hole penetrating the upper and lower surfaces and the upper end surface of the pile are connected A connecting plate in which a through hole communicates with the inside of the pile, a column formed in a tubular shape and having a lower end surface connected to the upper surface of the connecting plate, and a lower surface of the connecting plate to resist bending stress applied to the column. A bending resistance part that extends to the inside of the pile, the pillar and the pile are installed so that the center of the column and the center of the pile coincide with each other, and the lower end surface of the column is A pile-column connection structure characterized by being positioned above. 管状に形成されて地盤中に埋め込まれるように設置された杭と、上面と下面とに貫通する貫通孔を備えて杭の上端面を覆うように設置された下面と杭の上端面とが接続されて貫通孔が杭の内側に連通した連結板と、断面長方形の管状に形成されて下端面と連結板の上面とが接続された柱と、柱に加わる曲げ応力に抵抗するために連結板の下面より杭の内側に延長するように設けられた曲げ抵抗部とを備え、柱の中心と杭の中心とが一致するように柱と杭とが設置されて柱の下端面の長方形の一対の短辺部分が杭の上端面の真上に位置されたことを特徴とする杭と柱との結合構造体。   A pile formed in a tubular shape and embedded in the ground, and a lower surface installed to cover the upper end surface of the pile with a through hole penetrating the upper and lower surfaces and the upper end surface of the pile are connected And a connecting plate in which a through hole communicates with the inside of the pile, a column formed in a tubular shape having a rectangular cross section and connected to the lower end surface and the upper surface of the connecting plate, and a connecting plate to resist bending stress applied to the column A bending resistance portion provided so as to extend from the lower surface of the pile to the inside of the pile, and the column and the pile are installed so that the center of the column and the center of the pile coincide with each other. A combined structure of a pile and a column, characterized in that the short side portion of the pile is located directly above the upper end surface of the pile. 曲げ抵抗部は、連結板の下面に取り付けられて杭の内側の下方に延長するように設けられた定着体と、柱に加わる曲げ応力に抵抗するための杭の内周面との付着力及び定着体との付着力を得るために杭の内側に連通する孔を介して杭の内側に充填された充填材とにより形成されたことを特徴とする請求項１又は請求項２に記載の杭と柱との結合構造体。   The bending resistance portion is attached to the lower surface of the connecting plate and is attached to the fixing body provided to extend below the inside of the pile, and the adhesive force between the inner peripheral surface of the pile to resist bending stress applied to the column, and The pile according to claim 1 or 2, wherein the pile is formed by a filler filled inside the pile through a hole communicating with the inside of the pile in order to obtain adhesion to the fixing body. Combined structure of a column and a pillar. 定着体が鋼管により形成され、連結板の下面と鋼管の上端面とが連結され、充填材が鋼管の内側に充填されるとともに鋼管の外周面と杭の内周面との間に充填されたことを特徴とする請求項１乃至請求項３のいずれかに記載の杭と柱との結合構造体。   The fixing body is formed of a steel pipe, the lower surface of the connecting plate and the upper end surface of the steel pipe are connected, and the filler is filled inside the steel pipe and is filled between the outer peripheral surface of the steel pipe and the inner peripheral surface of the pile. The combined structure of a pile and a pillar according to any one of claims 1 to 3, wherein the structure is a combined structure.
JP2008131722A 2008-05-20 2008-05-20 Structure for connecting pile and column together Withdrawn JP2009280985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008131722A JP2009280985A (en) 2008-05-20 2008-05-20 Structure for connecting pile and column together

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008131722A JP2009280985A (en) 2008-05-20 2008-05-20 Structure for connecting pile and column together

Publications (1)

Publication Number Publication Date
JP2009280985A true JP2009280985A (en) 2009-12-03

Family

ID=41451718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008131722A Withdrawn JP2009280985A (en) 2008-05-20 2008-05-20 Structure for connecting pile and column together

Country Status (1)

Country Link
JP (1) JP2009280985A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012072647A (en) * 2010-09-01 2012-04-12 Marutaka Kogyo Inc Installed foundation
KR101371538B1 (en) * 2011-12-12 2014-03-10 (주)영구조엔지니어링 The connection structure between high-strength and large size phc pile and steel beam and top down method using it
JP2015086692A (en) * 2013-09-27 2015-05-07 株式会社アークリエイト Structural steelwork pile-column-underground beam joining part integration method
JP6096367B1 (en) * 2016-10-20 2017-03-15 大和リース株式会社 Steel pipe pile and steel column joint structure
JP2019116805A (en) * 2017-12-27 2019-07-18 株式会社アークリエイト Steel structure concrete pile, column, underground beam joint integrated column base structure
CN112339391A (en) * 2020-11-06 2021-02-09 吉林建筑大学 Environment-friendly building material and production device thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012072647A (en) * 2010-09-01 2012-04-12 Marutaka Kogyo Inc Installed foundation
KR101371538B1 (en) * 2011-12-12 2014-03-10 (주)영구조엔지니어링 The connection structure between high-strength and large size phc pile and steel beam and top down method using it
JP2015086692A (en) * 2013-09-27 2015-05-07 株式会社アークリエイト Structural steelwork pile-column-underground beam joining part integration method
JP6096367B1 (en) * 2016-10-20 2017-03-15 大和リース株式会社 Steel pipe pile and steel column joint structure
JP2018066206A (en) * 2016-10-20 2018-04-26 大和リース株式会社 Joining structure of steel pipe pile and steel column
JP2019116805A (en) * 2017-12-27 2019-07-18 株式会社アークリエイト Steel structure concrete pile, column, underground beam joint integrated column base structure
CN112339391A (en) * 2020-11-06 2021-02-09 吉林建筑大学 Environment-friendly building material and production device thereof

Similar Documents

Publication Publication Date Title
JP4800899B2 (en) Pile head joint structure and construction method
JP5955108B2 (en) Pile reinforcement structure of existing building and its construction method
JP2009280985A (en) Structure for connecting pile and column together
KR101797314B1 (en) Connecting structure of steel tube
KR101750177B1 (en) Punching shear stiffening member of cutting bridge type and method for constructing footing using of the same
JP2010236217A (en) Structure and construction method for reinforcing column-beam joint portion of reinforced concrete construction
KR20140021741A (en) Column-coping part joint structure with concrete filled tube for composite hollow precast bridge
JP2007002655A (en) Joining structure of pile head and its construction method
KR102069419B1 (en) Composite pile internally reinforced by steel tube
JP6338100B2 (en) Joint structure between pillars and building
JP6802692B2 (en) Pile head seismic isolation joint structure
JP6102010B2 (en) Pile reinforcement structure of existing building and its construction method
KR101949014B1 (en) Pile structure and construction method of the same
KR20170139186A (en) Connecting structure between column and footing structure
KR101254983B1 (en) Joint structure of concrete filled tube and beam
KR101665792B1 (en) Joint structure between column and horizontal member
JP5538151B2 (en) Joint structure of pile and steel column
KR101750176B1 (en) Punching share stiffening member of separation type and strength enhancement manufacturing method of foundation slab using of the same
JP2007100337A (en) Joint structure of pile and structure foundation
JP2018096188A (en) Junction structure of seismic isolator to steel-pipe column, and base isolated building
JP6240426B2 (en) Steel member fixing structure
JP6220315B2 (en) Joining structure and joining method
KR100545398B1 (en) Reinforced soil retaining wall and its installation method
JP2012149439A (en) Reinforcement anchoring structure
KR101657628B1 (en) Top-down method for building undergroud structure using steel pipe

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20110802