JP5844781B2 - Joining structure of solar cell mount and steel pipe pile and pile head cap hardware - Google Patents

Joining structure of solar cell mount and steel pipe pile and pile head cap hardware Download PDF

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JP5844781B2
JP5844781B2 JP2013172858A JP2013172858A JP5844781B2 JP 5844781 B2 JP5844781 B2 JP 5844781B2 JP 2013172858 A JP2013172858 A JP 2013172858A JP 2013172858 A JP2013172858 A JP 2013172858A JP 5844781 B2 JP5844781 B2 JP 5844781B2
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pile
steel pipe
plate
pile head
solar cell
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JP2015040443A (en
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貴久 森
貴久 森
温子 長濱
温子 長濱
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Daiwa House Industry Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description

この発明は、メガソーラーシステム等の太陽電池架台を鋼管杭を用いて支持する場合に適用される前記太陽電池架台と鋼管杭の接合構造、およびその接合構造に用いられる杭頭キャップ金物に関する。   The present invention relates to a joint structure between the solar battery mount and a steel pipe pile, which is applied when a solar battery mount such as a mega solar system is supported using a steel pipe pile, and a pile head cap hardware used in the joint structure.

従来、太陽電池架台を地盤上に支持するのに、太陽電池架台の柱材を地盤上に直接設置するもの（例えば特許文献１）や、地盤上に配置した基礎梁の上に、太陽電池架台の柱材を支持したもの（例えば特許文献２）が提案されているが、ＲＣ基礎を用いて太陽電池架台を支持する構成のものが一般的である。しかし、ＲＣ基礎は養生期間を要するので工期が長くなるという難点を有する。
そこで、ＲＣ基礎に替えて、鋼管杭を用いて太陽電池架台を支持することが試みられている。しかし、鋼管杭を用いる場合、太陽電池架台との位置ずれを現場で調整する必要がある。 Conventionally, in order to support a solar cell mount on the ground, a column of the solar cell mount is directly installed on the ground (for example, Patent Document 1), or on a foundation beam arranged on the ground, the solar cell mount Although the thing (for example, patent document 2) which supported the column material of this is proposed, the thing of the structure which supports a solar cell stand using RC foundation is common. However, since the RC foundation requires a curing period, it has a drawback that the construction period becomes long.
Then, it replaces with RC foundation and is trying to support a solar cell stand using a steel pipe pile. However, when using steel pipe piles, it is necessary to adjust the positional deviation from the solar cell mount on site.

鋼管杭で支持部材を支持する従来技術として、杭頭キャップに支承される球座頭ボルトと、球座頭ボルトの一方の端部である頭部を杭頭キャップに固定する位置調整部と、球座頭ボルトの他方の端部基礎梁（支持部材）とを連結する基礎梁固定プレートとを備えたものが提案されている（例えば特許文献３）。この構成により、基礎梁（支持部材）の施工上の設置誤差によって生じる要素部材の設置誤差を簡単に調整できる。   As conventional techniques for supporting a supporting member with a steel pipe pile, a ball head bolt supported by a pile head cap, a position adjusting unit for fixing the head which is one end of the ball head bolt to the pile head cap, and a ball head The thing provided with the foundation beam fixing plate which connects the other edge part foundation beam (support member) of a volt | bolt is proposed (for example, patent document 3). With this configuration, it is possible to easily adjust the installation error of the element member caused by the installation error in the construction of the foundation beam (support member).

また、鋼管杭を用いて柱を支持する場合の接合構造の従来技術として、鋼管杭に固定された杭頭プレートと鋼製の柱に固定された柱脚プレートとを、ボルトおよびナットで接合するものが提案されている（例えば特許文献４）。この構成により、施工手間や施工コストを削減でき、かつ杭の施工誤差に柔軟に対応できる。   In addition, as a conventional technology for joining structures when supporting columns using steel pipe piles, a pile head plate fixed to a steel pipe pile and a column base plate fixed to a steel column are joined with bolts and nuts. The thing is proposed (for example, patent document 4). With this configuration, it is possible to reduce construction labor and construction costs and flexibly deal with pile construction errors.

なお、鋼管杭の従来技術として、鋼管杭の杭頭部に挿入される杭頭材を、蓋板部と挿入プレート部と外嵌め管部とを一体的に備えたものとした技術が提案されている（例えば特許文献５）。   As a conventional technique for steel pipe piles, a technique has been proposed in which a pile head material inserted into a pile head of a steel pipe pile is integrally provided with a cover plate part, an insertion plate part, and an external fitting pipe part. (For example, Patent Document 5).

特開２０１２−０６９９２９号公報JP 2012-069929 A 特許第５０７９９１９号公報Japanese Patent No. 5079919 特開２００９−２０９５５７号公報JP 2009-209557 A 特開２００６−１９３９９５号公報JP 2006-193955 A 特開２００９−２４３５０号公報JP 2009-24350 A

特許文献３に開示の従来技術では、杭頭の倒れを補正するために、球座頭ボルトと複数の位置調整プレートを用いているため、施工の手間およびコスト高が問題となる。特許文献４に開示の従来技術では、杭頭と柱の接合にボルトを４本用いており、また施工誤差を吸収するために補助座金と呼ばれる部品を多数使用することから、施工時の手間が課題となる。   In the prior art disclosed in Patent Document 3, since a ball head bolt and a plurality of position adjustment plates are used to correct the falling of the pile head, there is a problem in construction labor and cost. In the prior art disclosed in Patent Document 4, four bolts are used to join the pile head and the column, and since many parts called auxiliary washers are used to absorb construction errors, there is a trouble in construction. It becomes a problem.

この発明の目的は、杭芯ずれ等の施工誤差が吸収でき、施工が容易で、工期の短縮、コストの低減が図れる太陽電池架台と鋼管杭の接合構造、およびその接合構造に用いられる杭頭キャップ金物を提供することである。   An object of the present invention is to absorb a construction error such as a pile misalignment, to facilitate construction, to shorten a construction period and to reduce a cost, and to connect a solar battery mount to a steel pipe pile and a pile head used for the joint structure. Cap hardware is to provide.

この発明の第１および第２の太陽電池架台と鋼管杭の接合構造は、太陽電池架台を複数本の各鋼管杭の杭頭に接合する構造であって、前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有する杭頭キャップ金物と、前記鋼管杭の杭頭内に溶接されて上下方向の雌ねじ部を有する杭頭プレートとを備え、前記杭頭キャップ金物の前記下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが設けられ、この接合プレートと前記杭頭プレートとが、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトにより接合され、前記杭頭キャップ金物の上部プレートと前記太陽電池架台とが、前記上部プレートおよび太陽電池架台の少なくとも一方に設けられたルーズ孔に挿通される杭頭接合ボルトにより接合されていることを共通構成とする。
この発明の第１の太陽電池架台と鋼管杭の接合構造は、前記共通構成において、前記上部プレートには、前記杭頭プレートの前記雌ねじ部に前記ボルトを螺合させる操作が可能なように、上方から手の差し込みを可能とするハンドホールが設けられ、前記太陽電池架台は下端にベースプレートを有し、このベースプレートが前記上部プレートに載せられ、前記上部プレートの前記ハンドホールは前記ベースプレートで覆われることを特徴とする。
この発明の第２の太陽電池架台と鋼管杭の接合構造は、前記共通構成において、前記杭頭プレートは前記鋼管杭の上端から下方に離れた位置にあり、前記下部外周材は前記杭頭プレートが位置する高さ位置付近まで下端が延びていることを特徴とする。 The first and second solar cell mounts and steel pipe piles of the present invention have a structure in which the solar cell mounts are bonded to the heads of a plurality of steel pipe piles, an upper plate on which the solar cell mounts are placed, And a pile head cap metal having a lower outer peripheral member projecting downward from the upper plate and surrounding an outer periphery of the pile head of the steel pipe pile, and a pile head welded in the pile head of the steel pipe pile and having a vertical female thread portion A plate having a bolt hole penetrating vertically and mounted on the upper end of the steel pipe pile, the joint plate and the pile head plate being provided on the inner periphery of the lower outer peripheral material of the pile head cap hardware. DOO is, the are inserted into the bolt holes are joined by a bolt screwed to the female screw portion, the upper plate of the pile head cap hardware and said solar cell cradle, small of the upper plate and the solar cell frame They are joined by pile fastening bolt inserted through the loose hole provided on one Kutomo be a common function to have.
In the joint structure of the first solar cell mount and the steel pipe pile according to the present invention, in the common configuration, the upper plate can be operated to screw the bolt into the female thread portion of the pile head plate. A hand hole is provided that allows a hand to be inserted from above, and the solar cell base has a base plate at a lower end, the base plate is placed on the upper plate, and the hand hole of the upper plate is covered with the base plate. It is characterized by that.
The joint structure of the second solar cell mount and the steel pipe pile according to the present invention is that, in the common configuration, the pile head plate is located at a position spaced downward from an upper end of the steel pipe pile, and the lower outer peripheral material is the pile head plate. The lower end extends to the vicinity of the height position where is located.

この構成によると、以下の作用が得られる。
（１） 鋼管杭の芯ずれなどの施工誤差を、杭頭キャップ金物と太陽電池架台とを杭頭接合ボルトで接合する箇所の前記ルーズ孔で吸収することができる。
（２） 鋼管杭の杭頭と杭頭キャップ金物の接合がボルトによる接合であり、杭頭キャップ金物の上部プレートと太陽電池架台との接合も杭頭接合ボルトによる接合であるため、ＲＣ基礎に比べて施工が容易である。また、ＲＣ基礎に必要な養生期間が不要となるため、工期が短縮される。
（３） 鋼管杭の杭頭と杭頭キャップ金物を接合するボルトが太陽電池架台で覆われるため、ボルトが風雨に曝されることがなく、耐久性が向上する。
（４） 杭頭キャップ金物が鋼管杭の外周を囲む下部外周材と上部プレートとで構成されるため、鋼管杭と杭頭キャップ金物との間に作用する水平力を下部外周材で負担することができて、杭頭キャップ金物を鋼管杭の杭頭に接合するボルトにせん断力を負担させることがなく、または負担が軽減され、十分な強度を確保することができる。
（５） 杭頭キャップ金物と鋼管杭とのボルト接合に用いられる杭頭プレートにより、鋼管杭のねじり耐力の向上が期待できる。そのため、杭径を大きくすることなく、ねじり耐力を向上させることができ、経済的な設計ができる。
このように、この太陽電池架台と鋼管杭の接合構造によると、杭芯ずれ等の施工誤差が吸収でき、施工が容易で、工期の短縮、コストの低減を図ることができる。 According to this configuration, the following effects can be obtained.
(1) Construction errors such as misalignment of steel pipe piles can be absorbed by the loose holes where the pile head cap hardware and the solar battery mount are joined by the pile head joining bolts.
(2) Since the joint between the pile head of the steel pipe pile and the pile head cap hardware is a joint by bolt, and the joint between the upper plate of the pile head cap hardware and the solar cell mount is also the joint by the pile head joint bolt, The construction is easier than that. Moreover, since the curing period required for RC foundation becomes unnecessary, a construction period is shortened.
(3) Since the bolt that joins the pile head of the steel pipe pile and the pile head cap hardware is covered with the solar cell mount, the bolt is not exposed to wind and rain, and durability is improved.
(4) Since the pile head cap hardware is composed of the lower outer peripheral material surrounding the outer periphery of the steel pipe pile and the upper plate, the lower outer peripheral material bears the horizontal force acting between the steel pipe pile and the pile head cap hardware. Thus, the bolt that joins the pile head cap hardware to the pile head of the steel pipe pile is not burdened with shearing force, or the burden is reduced, and sufficient strength can be secured.
(5) The pile head plate used for the bolt joint between the pile head cap hardware and the steel pipe pile can be expected to improve the torsional strength of the steel pipe pile. Therefore, the torsional strength can be improved without increasing the pile diameter, and an economical design can be achieved.
Thus, according to the joining structure of this solar cell mount and steel pipe pile, construction errors such as pile misalignment can be absorbed, construction is easy, construction period can be shortened, and cost can be reduced.

この発明において、前記杭頭プレートが、前記鋼管杭を打ち込む杭打機の治具に係合して杭打ち作業に使用される部材を兼ねるものであっても良い。
前記杭頭プレートは、上記のように鋼管杭のねじり耐力を向上させる効果を奏するが、杭打機の治具に係合して杭打ち込に使用される部材を兼ねるプレートとした場合は、前記杭頭プレートが、杭打ち込みの施工用と、ねじり耐力の向上と、杭頭キャップ金物との接合のための部材との３つの役割を兼ねることになる。そのため、杭頭キャップ金物との接合のために設けられる杭頭プレートが、効果的に利用されてより経済的な設計となる。 In the present invention, the pile head plate may also serve as a member used for a pile driving operation by engaging with a jig of a pile driving machine for driving the steel pipe pile.
The pile head plate has the effect of improving the torsional strength of the steel pipe pile as described above, but when it is a plate that also serves as a member used for pile driving by engaging with a jig of a pile driving machine, The said pile head plate serves as three roles of the member for the construction for pile driving, the improvement of torsional strength, and the joining with a pile head cap metal fitting. Therefore, the pile head plate provided for joining with the pile head cap hardware is effectively utilized and becomes a more economical design.

この発明において、前記杭頭キャップ金物の前記下部外周材は鋼管からなるものであっても良い。前記下部外周材は、鋼板のプレス加工品等であっても良いが、鋼管を用いることで、加工が容易となる。また、前記下部外周材が鋼管であると、適切な径の鋼管を選択することで、鋼管杭と下部外周材の内周面との隙間を全周に渡り適切に設計することができ、鋼管杭と杭頭キャップ金物との間に作用する水平力を下部外周材で負担する作用が、任意方向の水平力に対して得られる。   In this invention, the lower outer peripheral material of the pile head cap hardware may be made of a steel pipe. The lower outer peripheral material may be a pressed product of a steel plate or the like, but processing is facilitated by using a steel pipe. In addition, if the lower outer peripheral material is a steel pipe, a gap between the steel pipe pile and the inner peripheral surface of the lower outer peripheral material can be appropriately designed over the entire circumference by selecting a steel pipe having an appropriate diameter. The effect of bearing the horizontal force acting between the pile and the pile head cap hardware on the lower outer peripheral material is obtained for the horizontal force in an arbitrary direction.

この発明において、前記杭頭キャップ金物の前記接合プレートと前記杭頭プレートとの間に高さ調整プレートを介在させても良い。このように、高さ調整プレートを設けることにより、鋼管杭の杭打ちにより高さの誤差が生じた場合でも、その誤差を容易に吸収することができる。   In the present invention, a height adjustment plate may be interposed between the joint plate of the pile head cap hardware and the pile head plate. Thus, by providing the height adjustment plate, even when a height error occurs due to the pile driving of the steel pipe pile, the error can be easily absorbed.

この発明において、前記杭頭接合ボルトは、前記杭頭キャップ金物の上部プレートに設けられた前記ルーズ孔である長孔と、太陽電池架台に設けられて前記上部プレートの長孔に直交するルーズ孔である長孔とに渡って挿通しても良い。
この構成の場合、杭頭キャップ金物の上部プレートに太陽電池架台が載せられたとき、上部プレートのルーズ孔が太陽電池架台ルーズ孔と直交するので、鋼管杭に任意の方向の芯ずれがあっても、その方向の芯ずれを容易に補正して太陽電池架台を鋼管杭の杭頭に接合することができる。 In this invention, the pile head joining bolt includes a long hole which is the loose hole provided in the upper plate of the pile head cap hardware, and a loose hole which is provided in the solar cell mount and orthogonal to the long hole of the upper plate. It may be inserted through the long hole.
In this configuration, when the solar cell mount is placed on the upper plate of the pile head cap hardware, the loose hole of the upper plate is orthogonal to the solar cell mount loose hole, so the steel pipe pile has misalignment in any direction. However, it is possible to easily correct the misalignment in that direction and join the solar battery mount to the pile head of the steel pipe pile.

この発明の杭頭キャップ金物は、太陽電池架台を複数本の各鋼管杭の杭頭に接合する接合構造に用いられる杭頭キャップ金物であって、前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有し、この下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが溶接され、前記鋼管杭の杭頭内に前記鋼管杭の上端から下方に離れた位置に溶接されて上下方向の雌ねじ部を有する杭頭プレートと前記接合プレートとが、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトで接合され、前記杭頭キャップ金物の上部プレートに、前記太陽電池架台と接合する杭頭接合ボルトを挿通するルーズ孔が設けられ、前記下部外周材は前記杭頭プレートが位置する高さ位置付近まで下端が延びていることを特徴とする。 The pile head cap hardware of the present invention is a pile head cap hardware used in a joining structure for joining a solar cell mount to a pile head of each of a plurality of steel pipe piles, and an upper plate on which the solar cell mount is placed, and the upper plate A joint plate that protrudes downward from the plate and has a lower outer peripheral member surrounding the outer periphery of the pile head of the steel pipe pile, and has a bolt hole penetrating vertically on the inner periphery of the lower outer peripheral member and is placed on the upper end of the steel pipe pile The pile head plate welded at a position spaced downward from the upper end of the steel pipe pile into the pile head of the steel pipe pile and having the internal thread portion in the vertical direction and the joining plate are inserted through the bolt holes. joined at threaded bolt to the female screw portion Te, the the top plate of the pile head cap fittings, the loose hole for inserting the pile fastening bolt for joining the solar cell cradle provided et al is, the lower outer peripheral member is the Wherein the lower end to near the height position of the head plate is positioned extends.

この構成によると、前記発明の太陽電池架台と鋼管杭の接合構造の施工を容易にしコストを低減できると共に、芯ずれの補正も可能となる。   According to this configuration, the construction of the joining structure of the solar battery mount and the steel pipe pile according to the present invention can be facilitated, the cost can be reduced, and the misalignment can be corrected.

この発明の太陽電池架台と鋼管杭の接合構造は、太陽電池架台を複数本の各鋼管杭の杭頭に接合する構造であって、前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有する杭頭キャップ金物と、前記鋼管杭の杭頭内に溶接されて上下方向の雌ねじ部を有する杭頭プレートとを備え、前記杭頭キャップ金物の前記下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが設けられ、この接合プレートと前記杭頭プレートとを、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトにより接合し、前記杭頭キャップ金物の上部プレートと前記太陽電池架台とを、前記上部プレートおよび太陽電池架台の少なくとも一方に設けられたルーズ孔に挿通される杭頭接合ボルトにより接合したため、杭芯ずれ等の施工誤差が吸収でき、施工が容易で、工期の短縮、コストの低減を図ることができる。   The joining structure of the solar battery mount and the steel pipe pile according to the present invention is a structure in which the solar battery mount is joined to the pile head of each of the plurality of steel pipe piles, and an upper plate on which the solar battery mount is placed, and a lower side from the upper plate A pile head cap hardware having a lower outer peripheral material surrounding the outer periphery of the pile head of the steel pipe pile, and a pile head plate welded in the pile head of the steel pipe pile and having an internal thread portion in the vertical direction, On the inner periphery of the lower outer peripheral member of the pile head cap hardware, there is provided a joining plate that has a bolt hole penetrating vertically and is placed on the upper end of the steel pipe pile, and the joining plate and the pile head plate are connected to the bolt hole. And the upper plate of the pile head cap hardware and the solar cell frame are provided on at least one of the upper plate and the solar cell frame. Since joined by a pile fastening bolt inserted through the loose hole, can absorb construction errors such Kuishin deviation, construction is easy and shortening the construction period, it is possible to reduce the cost.

この発明の杭頭キャップ金物は、太陽電池架台を複数本の各鋼管杭の杭頭に接合する接合構造に用いられる杭頭キャップ金物であって、前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有し、この下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが溶接され、前記鋼管杭の杭頭内に前記鋼管杭の上端から下方に離れた位置に溶接されて上下方向の雌ねじ部を有する杭頭プレートと前記接合プレートとが、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトで接合され、前記杭頭キャップ金物の上部プレートに、前記太陽電池架台と接合する杭頭接合ボルトを挿通するルーズ孔が設けられ、前記下部外周材は前記杭頭プレートが位置する高さ位置付近まで下端が延びているため、杭芯ずれ等の施工誤差が吸収でき、施工が容易で、工期の短縮、コストの低減を図ることができる。 The pile head cap hardware of the present invention is a pile head cap hardware used in a joining structure for joining a solar cell mount to a pile head of each of a plurality of steel pipe piles, and an upper plate on which the solar cell mount is placed, and the upper plate A joint plate that protrudes downward from the plate and has a lower outer peripheral member surrounding the outer periphery of the pile head of the steel pipe pile, and has a bolt hole penetrating vertically on the inner periphery of the lower outer peripheral member and is placed on the upper end of the steel pipe pile The pile head plate welded at a position spaced downward from the upper end of the steel pipe pile into the pile head of the steel pipe pile and having the internal thread portion in the vertical direction and the joining plate are inserted through the bolt holes. joined at threaded bolt to the female screw portion Te, the the top plate of the pile head cap fittings, the loose hole for inserting the pile fastening bolt for joining the solar cell cradle provided et al is, the lower outer peripheral member is the Since the head plate extends the lower end to the vicinity of a height position which is located, can absorb construction errors such Kuishin deviation, construction is easy and shortening the construction period, it is possible to reduce the cost.

（Ａ）はこの発明の太陽電池架台と鋼管杭の接合構造を用いて太陽電池架台を地盤上に支持した架台システムの一例の平面図、（Ｂ）は同後部正面図、（Ｃ）は同前部正面図、（Ｄ）は同側面図である。(A) is a plan view of an example of a gantry system in which the solar cell gantry is supported on the ground by using the joining structure of the solar cell gantry and the steel pipe pile according to the present invention, (B) is the rear front view, and (C) is the same. Front view, (D) is a side view. （Ａ）は同架台システムの他の例の後部正面図、（Ｂ）は同前部正面図、（Ｃ）は同側面図である。(A) is the rear part front view of the other example of the mount system, (B) is the front part front view, (C) is the side view. この発明の太陽電池架台と鋼管杭の接合構造の一実施形態を示す一部を破断した正面図である。It is the front view which fractured | ruptured one part which shows one Embodiment of the joining structure of the solar cell mount of this invention, and a steel pipe pile. 同接合構造の分解正面図である。It is a disassembled front view of the junction structure. 同接合構造の分解平面図である。It is an exploded plan view of the joint structure. 同接合構造における鋼管杭の地盤への杭打ちに用いられる杭打機治具の斜視図である。It is a perspective view of the pile driver jig used for pile driving to the ground of the steel pipe pile in the joined structure. （Ａ）は同接合構造に高さ調整プレートを介在させた例を示す一部を破断した正面図、（Ｂ）は同高さ調整プレートの平面図である。(A) is the front view which fractured | ruptured a part which shows the example which interposed the height adjustment plate in the same joining structure, (B) is a top view of the height adjustment plate. 同接合構造に高さ調整プレートを介在させた他の例を示す一部を破断した正面図である。It is the front view which fractured | ruptured a part which shows the other example which interposed the height adjustment plate in the joining structure. 同接合構造における負荷の説明図である。It is explanatory drawing of the load in the junction structure. 同接合構造と異なる他の接合構造における負荷の説明図である。It is explanatory drawing of the load in the other junction structure different from the junction structure. 同接合構造の他の実施形態における杭頭キャップ金物の平面図、正面断面図、および側面断面図である。It is a top view, front sectional view, and side sectional view of a pile head cap hardware in another embodiment of the joint structure. 同杭頭キャップ金物の上部プレートに接合される太陽電池架台の架台柱脚の平面図、正面図、および側面図である。It is a top view, a front view, and a side view of a pedestal column base of a solar cell pedestal joined to the upper plate of the pile head cap hardware. 同接合構造における鋼管杭の芯ずれに伴う鋼管杭中心と架台柱脚のルーズ孔との位置関係を示す説明図である。It is explanatory drawing which shows the positional relationship of the steel pipe pile center accompanying the misalignment of the steel pipe pile in the joint structure, and the loose hole of a mount column base.

この発明の第１の実施形態を図１ないし図１０と共に説明する。図１（Ａ）〜（Ｄ）は、この太陽電池架台と鋼管杭の接合構造を用いて、メガソーラーシステムの太陽電池架台２１を地盤４１上に支持した架台システム２０の一例の平面図、後部正面図、前部正面図、および側面図を示す。同図の架台システム２０は多雪地域に用いる例を示し、太陽電池架台２１は、前後の桁材２２，２３と、これらの桁材２２，２３を支える前後の短支柱２４および長支柱２５と、前後の桁材２２，２３を連結する斜材２６と、短支柱２４と長支柱２５の下端間を連結する下桟２７と、前後の桁材２２，２３上に跨がって互いに平行に配置される横架材である複数本の母屋２８と、前後の桁材２２，２３と前後の短支柱２４および長支柱２５の下端とを連結する方杖２９と、前方の桁材２２と長支柱２５の下端とを連結する斜材３０とを備える。   A first embodiment of the present invention will be described with reference to FIGS. 1 (A) to (D) are plan views of an example of a gantry system 20 in which a solar cell gantry 21 of a mega solar system is supported on a ground 41 using the joining structure of the solar cell gantry and a steel pipe pile. A front view, a front view, and a side view are shown. The gantry system 20 of the figure shows an example used in a heavy snow region, and a solar cell gantry 21 includes front and rear girders 22 and 23, and front and rear short struts 24 and long struts 25 that support these girders 22 and 23. The diagonal member 26 that connects the front and rear beam members 22 and 23, the lower beam 27 that connects the lower ends of the short support column 24 and the long support column 25, and the front and rear beam members 22 and 23 that are parallel to each other. A plurality of purlins 28 as horizontal members to be arranged, a front and rear girder members 22 and 23, a front and rear girder member 22 and 23, a front and rear girder member 22, and a long brace member 29. The diagonal member 30 which connects the lower end of the support | pillar 25 is provided.

太陽電池パネル４０は、太陽電池架台２１の前記母屋２８上に設置される。鋼管杭１は、太陽電池架台２１の短支柱２４および長支柱２５にそれぞれ対応する地盤４１上の各位置にそれぞれ位置して複数本杭打ちされ、図３のように鋼管杭１の杭頭に設けられた杭頭キャップ金物２を介して前記短支柱２４および長支柱２５が対応する各鋼管杭１にそれぞれ接合される。   The solar cell panel 40 is installed on the main building 28 of the solar cell mount 21. A plurality of steel pipe piles 1 are placed at respective positions on the ground 41 corresponding to the short struts 24 and the long struts 25 of the solar cell mount 21, respectively, and are piled on the pile head of the steel pipe pile 1 as shown in FIG. The short struts 24 and the long struts 25 are respectively joined to the corresponding steel pipe piles 1 via the provided pile head cap hardware 2.

図２（Ａ）〜（Ｃ）は、一般地域に用いる架台システム２０の例の後部正面図、前部正面図、および側面図を示す。平面図は図１の多雪地域用と同じであるため、図示を省略している。多雪地域用と一般地域用とで、長支柱２５の高さ、およびこれに伴う方杖２９の長さが異なる他は同様であり、鋼管杭１と太陽電池架台２１とを接合する接合構造は互いに同じである。   2A to 2C show a rear front view, a front front view, and a side view of an example of the gantry system 20 used in a general area. Since the plan view is the same as that for the heavy snow region of FIG. 1, the illustration is omitted. The structure for joining the steel pipe pile 1 and the solar cell base 21 is the same except that the length of the long support column 25 and the length of the wand 29 accompanying this are different for the heavy snow region and the general region. Are the same as each other.

図３は、図１または図２の鋼管杭１と太陽電池架台２１とを接合する接合構造の一部を破断した正面図を、図４はその分解正面図を、図５はその分解平面図をそれぞれ示す。この接合構造は、上記したように太陽電池架台２１を複数本の各鋼管杭１の杭頭に接合する構造であって、杭頭キャップ金物２と、杭頭プレート３とを備える。杭頭キャップ金物２は、太陽電池架台２１の前記短支柱２４や長支柱２５の下端の柱脚３１を載せる上部プレート４と、この上部プレート４から下方に突出して鋼管杭１の杭頭の外周を囲む下部外周材５とを有する。ここでは、下部外周材５が鋼管杭１の外径よりも大きい内径の鋼管からなり、上部プレート４の下面に溶接された例を示している。この場合、せん断力を伝達する上で、下部外周材５となる鋼管と鋼管杭１の杭頭との間の隙間が最小となるように、下部外周材５となる鋼管の肉厚を設定するのが望ましい。前記杭頭プレート３は、鋼管杭１の杭頭内に溶接されたプレートであって、上下方向に貫通する雌ねじ部３ａを有する。   3 is a front view in which a part of a joining structure for joining the steel pipe pile 1 and the solar cell mount 21 of FIG. 1 or FIG. 2 is broken, FIG. 4 is an exploded front view thereof, and FIG. 5 is an exploded plan view thereof. Respectively. This joint structure is a structure for joining the solar cell mount 21 to the pile heads of the plurality of steel pipe piles 1 as described above, and includes the pile head cap hardware 2 and the pile head plate 3. The pile head cap hardware 2 includes an upper plate 4 on which the lower column 24 of the solar cell mount 21 and the lower column base 31 of the long column 25 are mounted, and an outer periphery of the pile head of the steel pipe pile 1 protruding downward from the upper plate 4. And a lower peripheral member 5 surrounding the outer periphery. Here, an example in which the lower outer peripheral member 5 is made of a steel pipe having an inner diameter larger than the outer diameter of the steel pipe pile 1 and is welded to the lower surface of the upper plate 4 is shown. In this case, when transmitting the shearing force, the thickness of the steel pipe serving as the lower outer peripheral member 5 is set so that the gap between the steel pipe serving as the lower outer peripheral member 5 and the pile head of the steel pipe pile 1 is minimized. Is desirable. The said pile head plate 3 is a plate welded in the pile head of the steel pipe pile 1, Comprising: It has the internal thread part 3a penetrated to an up-down direction.

なお、下部外周材５として既製の鋼管を用いる場合、鋼管杭１との最良の組み合わせが存在するとは限らない。そこで、下部外周材５として、鋼管に替えて上部プレート４の一部を鋼管杭１の外径に合わせて下方に折り曲げて形成しても良い。   In addition, when using a ready-made steel pipe as the lower outer periphery material 5, the best combination with the steel pipe pile 1 does not necessarily exist. Therefore, the lower outer peripheral member 5 may be formed by bending a part of the upper plate 4 downward according to the outer diameter of the steel pipe pile 1 instead of the steel pipe.

杭頭キャップ金物２の下部外周材５の内周には、上下に貫通するボルト孔６ａを有し鋼管杭１の上端に載る接合プレート６が設けられている。この接合プレート６と前記杭頭プレート３とを、図３のように前記ボルト孔６ａに挿通されて前記雌ねじ部３ａに螺合するボルト７により接合することで、杭頭キャップ金物２が鋼管杭１の杭頭に接合される。   On the inner periphery of the lower outer peripheral member 5 of the pile head cap hardware 2, a joining plate 6 having a bolt hole 6 a penetrating vertically is placed on the upper end of the steel pipe pile 1. As shown in FIG. 3, the joint plate 6 and the pile head plate 3 are joined by a bolt 7 inserted into the bolt hole 6a and screwed into the female screw portion 3a, so that the pile head cap hardware 2 is a steel pipe pile. It is joined to 1 pile head.

太陽電池架台２１の短支柱２４や長支柱２５の柱脚３１は、水平断面が十字状のガセットプレート３２と、このガセットプレート３２の下端に溶接されたベースプレート３３とでなり、そのベースプレート３３には図５のように２つのルーズ孔３３ａが設けられている。ここでは、そのルーズ孔３３ａは一方向に延びる長孔とされている。一方、前記ベースプレート３３が載せられる杭頭キャップ金物２の上部プレート４にも２つのルーズ孔４ａが設けられている。ここでは、そのルーズ孔４ａは前記ベースプレート３３のルーズ孔３３ａに対応する位置であって、かつそれらのルーズ孔３３ａに直交する方向に延びる長孔とされている。これにより、杭頭キャップ金物２の上部プレート４に太陽電池架台２１の柱脚３１のベースプレート３３が載せられたとき、上部プレート４のルーズ孔４ａがベースプレート３３のルーズ孔３３ａと直交する。杭頭キャップ金物２の上部プレート４と太陽電池架台２１の柱脚３１のベースプレート３３とは、これら両プレートのルーズ孔３３ａ，４ａに挿通される杭頭接合ボルト８により接合される。ここでは、上部プレート４とベースプレート３３の両方にルーズ孔４ａ，３３ａを設けた例を示したが、一方のプレートのみにルーズ孔を設け、他方のプレートには円形のボルト挿通孔を設けても良い。   The column base 31 of the short column 24 and the long column 25 of the solar cell base 21 is composed of a gusset plate 32 having a cross-shaped horizontal section and a base plate 33 welded to the lower end of the gusset plate 32. As shown in FIG. 5, two loose holes 33a are provided. Here, the loose hole 33a is a long hole extending in one direction. On the other hand, two loose holes 4a are also provided in the upper plate 4 of the pile head cap hardware 2 on which the base plate 33 is placed. Here, the loose hole 4a is a position corresponding to the loose hole 33a of the base plate 33 and is a long hole extending in a direction perpendicular to the loose holes 33a. Thereby, when the base plate 33 of the column base 31 of the solar cell mount 21 is placed on the upper plate 4 of the pile head cap hardware 2, the loose hole 4 a of the upper plate 4 is orthogonal to the loose hole 33 a of the base plate 33. The upper plate 4 of the pile head cap hardware 2 and the base plate 33 of the column base 31 of the solar cell mount 21 are joined by pile head joining bolts 8 inserted into the loose holes 33a, 4a of these plates. Here, an example in which the loose holes 4a and 33a are provided in both the upper plate 4 and the base plate 33 is shown, but a loose hole may be provided in only one plate, and a circular bolt insertion hole may be provided in the other plate. good.

このように、杭頭キャップ金物２の上部プレート４に設けるルーズ孔４ａを一方向に延びる長孔とし、太陽電池架台２１の柱脚３１のベースプレート３３に設けるルーズ孔３３ａを前記ルーズ孔４ａに直交する長孔とすることにより、地盤４１に杭打ちされる鋼管杭１に多少の芯ずれがあっても、その芯ずれを調整して鋼管杭１の杭頭に太陽電池架台２１の柱脚３１を確実に接合することができる。   Thus, the loose hole 4a provided in the upper plate 4 of the pile head cap hardware 2 is a long hole extending in one direction, and the loose hole 33a provided in the base plate 33 of the column base 31 of the solar cell mount 21 is orthogonal to the loose hole 4a. Even if there is some misalignment in the steel pipe pile 1 piled on the ground 41, by adjusting the misalignment, the column base 31 of the solar cell mount 21 is adjusted to the pile head of the steel pipe pile 1. Can be reliably joined.

図４のように、太陽電池架台２１の柱脚３１を構成する十字状のガセットプレート３２の一方のプレート部３２ａには、前記方杖２９の下端をボルト接合するためのボルト孔３４が設けられ、他方のプレート部３２ｂには、前記短支柱２４や長支柱２５の下端をボルト接合するためのボルト孔３５が設けられている。   As shown in FIG. 4, one plate portion 32a of the cross-shaped gusset plate 32 constituting the column base 31 of the solar cell mount 21 is provided with a bolt hole 34 for bolting the lower end of the cane 29. The other plate portion 32b is provided with a bolt hole 35 for bolting the lower ends of the short struts 24 and the long struts 25.

また、図５のように、杭頭キャップ金物２の上部プレート４には、下部外周材５と同心のハンドルホール９が設けられており、このハンドルホール９から手を差し込んでの操作により、下部外周材５の内周に設けられた接合プレート６のボルト孔６ａから挿通したボルト７を、鋼管杭１の杭頭内の杭頭プレート３の雌ねじ部３ａに螺合できるようにされている。   Further, as shown in FIG. 5, the upper plate 4 of the pile head cap hardware 2 is provided with a handle hole 9 concentric with the lower outer peripheral member 5, and by inserting a hand through the handle hole 9, A bolt 7 inserted through a bolt hole 6 a of a joining plate 6 provided on the inner periphery of the outer peripheral member 5 can be screwed into the female thread portion 3 a of the pile head plate 3 in the pile head of the steel pipe pile 1.

さらに、図５のように、鋼管杭１の杭頭内の杭頭プレート３の外周部には、鋼管杭１を地盤４１上に杭打ちするときに、図６に示す杭打機治具５０を用いて鋼管杭１を回転貫入させる操作を行うための一対の切欠部３ｂが設けられている。杭打機治具５０は、杭打機（図示せず）の昇降および正逆回転を行う杭打ヘッドに鋼管可能に取付けられる治具である。この杭打機治具５０は、鋼管杭１の上端に押し当てられて鋼管杭１を地盤４１に打ち込む円筒状の打込み部材５１と、その内側に配置され前記杭頭プレート３の切欠部３ｂに係合し鋼管杭１を捻じる一対のフック部材５２と、前記打込み部材５１の外周に配置されて打込み部材５１を被覆する円筒状のカバー部材５３などからなる。   Further, as shown in FIG. 5, when the steel pipe pile 1 is piled on the ground 41 on the outer periphery of the pile head plate 3 in the pile head of the steel pipe pile 1, the pile driver jig 50 shown in FIG. 6 is used. A pair of notches 3b for performing an operation of rotating and penetrating the steel pipe pile 1 is provided. The pile driver jig 50 is a jig that is attached to a pile driving head that moves the pile driver (not shown) up and down and forward / reversely so as to enable steel pipes. This pile driver jig 50 is pressed against the upper end of the steel pipe pile 1 and is placed on the cylindrical driving member 51 that drives the steel pipe pile 1 into the ground 41, and the notch 3b of the pile head plate 3 disposed on the inside thereof. It consists of a pair of hook members 52 that engage and twist the steel pipe pile 1 and a cylindrical cover member 53 that is disposed on the outer periphery of the driving member 51 and covers the driving member 51.

太陽電池架台２１の架台システム２０では大きな支持力を必要としないので、支持力の観点からは鋼管杭１は小径のもので十分対応できる。しかし、鋼管杭１が小径の場合、上記した杭打機治具５０による捻じり操作に対して捻じり耐力が小さいため、施工時のトルクに耐えられない場合がある。この接合構造では、上記したように鋼管杭１の杭頭内に杭頭プレート３を溶接していることから、鋼管杭１の径を大きくすることなく、捻じり耐力を向上させることができ、経済的な設計が可能となる。   Since the mounting system 20 of the solar cell mounting 21 does not require a large supporting force, the steel pipe pile 1 can be sufficiently accommodated with a small diameter from the viewpoint of the supporting force. However, when the steel pipe pile 1 has a small diameter, the twisting strength is small with respect to the twisting operation by the above-described pile driver jig 50, and thus the torque during construction may not be able to be endured. In this joint structure, since the pile head plate 3 is welded in the pile head of the steel pipe pile 1 as described above, the torsional strength can be improved without increasing the diameter of the steel pipe pile 1. Economic design is possible.

図７（Ａ）は、上記接合構造において、鋼管杭１の高さ調整を行う場合の構成例を示す。この例では、杭頭キャップ金物２の接合プレート６と杭頭プレート３との間（具体的には接合プレート６と鋼管杭１の上端との間）に、図７（Ｂ）に平面図で示すような高さ調整プレート１０を介在させている。高さ調整プレート１０には、杭頭キャップ金物２の接合プレート６のボルト孔６ａからのボルト７の挿通を妨げないようにボルト孔６ａより大きい中央孔１０ａが設けられている。このように、高さ調整プレート１０を設けることにより、鋼管杭１の杭打ちにより高さの誤差が生じた場合でも、その誤差を容易に吸収することができる。   FIG. 7A shows a configuration example in the case where the height adjustment of the steel pipe pile 1 is performed in the above joint structure. In this example, between the joining plate 6 of the pile head cap hardware 2 and the pile head plate 3 (specifically, between the joining plate 6 and the upper end of the steel pipe pile 1), FIG. A height adjusting plate 10 as shown is interposed. The height adjusting plate 10 is provided with a central hole 10a larger than the bolt hole 6a so as not to hinder the insertion of the bolt 7 from the bolt hole 6a of the joining plate 6 of the pile head cap hardware 2. Thus, by providing the height adjustment plate 10, even when a height error occurs due to the pile driving of the steel pipe pile 1, the error can be easily absorbed.

上記した高さ調整は、鋼管杭１の高さ誤差がマイナス側に生じた場合に有効なものである。しかし、高さ誤差がプラス側に生じた場合でも、例えば複数の鋼管杭１のうち最も高い鋼管杭１の高さを基準として、他の鋼管杭１の高さを上記した高さ調整により基準の高さに揃えることにより対応できる。そのほか、鋼管杭１の杭頭をカットするなどにより対応しても良い。   The height adjustment described above is effective when the height error of the steel pipe pile 1 occurs on the minus side. However, even when a height error occurs on the plus side, for example, the height of the steel pipe pile 1 that is the highest of the plurality of steel pipe piles 1 is used as a reference, and the height of the other steel pipe piles 1 is determined by the height adjustment described above. Can be accommodated by aligning to the height of. In addition, you may respond by cutting the pile head of the steel pipe pile 1. FIG.

なお、鋼管杭１の高さ誤差を、図８のように杭頭キャップ金物２の接合プレート６と太陽電池架台２１の柱脚３１のベースプレート３３との間に高さ調整プレート１１を介在させることによって調整することも可能である。しかし、この方法は、杭頭接合ボルト８の耐久性の観点から望ましいとは言えない。   In addition, the height adjustment plate 11 is interposed between the joining plate 6 of the pile head cap hardware 2 and the base plate 33 of the column base 31 of the solar cell mount 21 as shown in FIG. It is also possible to adjust by. However, this method is not desirable from the viewpoint of durability of the pile head joining bolt 8.

この接合構造では、図９に示すように、せん断力は杭頭キャップ金物２の下部外周材５と鋼管杭１の杭頭の支圧Ｑで、引張力はボルト７の軸力Ｐで伝達される。この接合構造に代わる接合構造として、例えば図１０のように、杭頭キャップ金物２を設けず断面ハット形の仲介部材１２を鋼管杭１の杭頭にボルト１３で接合した場合、１本のボルト１３だけでせん断力と引張軸力を伝達させる必要がある。さらに、同図のようにボルト１３には純せん断ではなく、せん断スパンを持った曲げＭが作用するため、ボルト１３の設計が非常に厳しくなるという難点が生じる。これに対して、図９の接合構造では、上記したように杭頭キャップ金物２の下部外周材５と鋼管杭１の杭頭の支圧で伝達させ、引張軸力はボルト７で伝達させるため、非常に合理的な設計が可能となる。   In this joint structure, as shown in FIG. 9, the shearing force is transmitted by the bearing force Q of the lower outer peripheral member 5 of the pile head cap hardware 2 and the pile head of the steel pipe pile 1, and the tensile force is transmitted by the axial force P of the bolt 7. The As a joining structure that replaces this joining structure, for example, as shown in FIG. 10, when the intermediate member 12 having a hat-shaped cross section is joined to the pile head of the steel pipe pile 1 without the pile head cap hardware 2, one bolt It is necessary to transmit shearing force and tensile axial force with only 13. Further, as shown in the figure, since the bolt 13 is not subjected to pure shear but is subjected to a bending M having a shear span, the design of the bolt 13 becomes very strict. On the other hand, in the joining structure of FIG. 9, as described above, the lower outer peripheral material 5 of the pile head cap hardware 2 and the pile head of the steel pipe pile 1 are transmitted by the bearing pressure, and the tensile axial force is transmitted by the bolt 7. A very reasonable design is possible.

このように、この太陽電池架台と鋼管杭の接合構造によると、以下の効果が得られる。 （１） 鋼管杭１の芯ずれなどの施工誤差を、杭頭キャップ金物２と太陽電池架台２１とを杭頭接合ボルト８で接合する箇所の前記ルーズ孔４ａ，３３ａで吸収することができる。
（２） 鋼管杭１の杭頭と杭頭キャップ金物２の接合がボルト７による接合であり、杭頭キャップ金物２の上部プレート４と太陽電池架台２１との接合も杭頭接合ボルト８による接合であるため、ＲＣ基礎に比べて施工が容易である。また、ＲＣ基礎に必要な養生期間で不要となるため、工期が短縮される。
（３） 鋼管杭１の杭頭と杭頭キャップ金物２を接合するボルト７が太陽電池架台２１の柱脚３１で覆われるため、ボルト７が風雨にさらされることがなく、耐久性が向上する。
（４） 杭頭キャップ金物２が上部プレート４と下部外周材５とでなるため、杭頭キャップ金物２を鋼管杭１の杭頭に接合するボルト７にせん断力を負担させることがなく、十分な強度を確保することができる。
（５） 杭頭キャップ金物２と鋼管杭１とのボルト接合に用いられる杭頭プレート３により、鋼管杭１のねじり耐力の向上が期待できる。そのため、杭径を大きくすることなく、ねじり耐力を向上させることができ、経済的な設計ができる。
このように、この太陽電池架台と鋼管杭の接合構造によると、杭芯ずれ等の施工誤差が吸収でき、施工が容易で、工期の短縮、コストの低減を図ることができる。 Thus, according to the joining structure of this solar cell mount and the steel pipe pile, the following effects are obtained. (1) Construction errors such as misalignment of the steel pipe pile 1 can be absorbed by the loose holes 4a and 33a where the pile head cap hardware 2 and the solar cell mount 21 are joined by the pile head joining bolt 8.
(2) The joint between the pile head of the steel pipe pile 1 and the pile head cap hardware 2 is joined by the bolt 7, and the joint between the upper plate 4 of the pile head cap hardware 2 and the solar cell mount 21 is also joined by the pile head joint bolt 8. Therefore, construction is easier than RC foundation. Moreover, since it becomes unnecessary in the curing period required for RC foundation, a construction period is shortened.
(3) Since the bolt 7 that joins the pile head of the steel pipe pile 1 and the pile head cap hardware 2 is covered with the column base 31 of the solar cell mount 21, the bolt 7 is not exposed to wind and rain, and durability is improved. .
(4) Since the pile head cap hardware 2 is composed of the upper plate 4 and the lower outer peripheral member 5, the bolt 7 that joins the pile head cap hardware 2 to the pile head of the steel pipe pile 1 does not bear a shearing force and is sufficient. High strength can be ensured.
(5) The pile head plate 3 used for the bolt joint between the pile head cap hardware 2 and the steel pipe pile 1 can be expected to improve the torsional strength of the steel pipe pile 1. Therefore, the torsional strength can be improved without increasing the pile diameter, and an economical design can be achieved.
Thus, according to the joining structure of this solar cell mount and steel pipe pile, construction errors such as pile misalignment can be absorbed, construction is easy, construction period can be shortened, and cost can be reduced.

図１１および図１２は、前記接合構造における構成部材の金物サイズを最適化するための、杭頭キャップ金物２および柱脚３１の具体例を示したものである。この例では、図１１のように、杭頭キャップ金物２の上部プレート４に設けられる２つのルーズ孔４ａである長孔を、下部外周材５を挟んで太陽電池架台２１のスパン方向に平行に配置している。また、図１２のように、柱脚３１のベースプレート３３に設けられる２つのルーズ孔３３ａである長孔は、ガセットプレート３３のプレート部３２ａ，３２ｂで囲まれるコーナ内に一端が位置して太陽電池架台２１の桁材２２，２３（図１，図２）に平行で前記上部プレート４に設けられる２つのルーズ孔４ａと直交する方向に延ばして配置している。これにより、ベースプレート３３にガセットプレート３２を溶接するための溶接長さを確保しながら、ベースプレート３３の幅寸法を最小に抑えることができる。   FIG. 11 and FIG. 12 show specific examples of the pile head cap hardware 2 and the column base 31 for optimizing the hardware size of the structural members in the joint structure. In this example, as shown in FIG. 11, long holes, which are two loose holes 4 a provided in the upper plate 4 of the pile head cap hardware 2, are parallel to the span direction of the solar cell mount 21 with the lower outer peripheral member 5 interposed therebetween. It is arranged. Further, as shown in FIG. 12, the long holes, which are the two loose holes 33 a provided in the base plate 33 of the column base 31, are positioned at one end in the corner surrounded by the plate portions 32 a and 32 b of the gusset plate 33, and the solar cell. It is arranged so as to extend in a direction perpendicular to the two loose holes 4a provided in the upper plate 4 in parallel to the beams 22 and 23 (FIGS. 1 and 2) of the gantry 21. Thereby, the width dimension of the base plate 33 can be suppressed to the minimum while ensuring the welding length for welding the gusset plate 32 to the base plate 33.

図１３は、上記した杭頭キャップ金物２の上部プレート４に太陽電池架台２１の柱脚３１を載せた各例を平面図で示している。そのうち、図１３（Ａ）は柱脚３１に対して鋼管柱１がＸ（＋）側およびＹ（−）側に芯ずれした場合を、同図（Ｂ）はＹ（−）側に芯ずれした場合をそれぞれ示す。同図（Ｃ）はＸ（−）側およびＹ（−）側に芯ずれした場合を、同図（Ｄ）はＸ（＋）側に芯ずれした場合を、同図（Ｅ）は芯ずれしない場合を、同図（Ｆ）はＸ（−）側に芯ずれした場合を、同図（Ｇ）はＸ（＋）側およびＹ（＋）側に芯ずれした場合を、同図（Ｈ）はＹ（＋）側に芯ずれした場合を、同図（Ｉ）はＸ（−）側およびＹ（＋）側に芯ずれした場合をそれぞれ示す。なお、Ｘ（＋），Ｘ（−）は同図における左右方向（太陽電池架台２１のスパン方向）を示し、Ｙ（＋），Ｙ（−）は同図における上下方向（太陽電池架台２１の桁行方向）を示す。   FIG. 13 is a plan view showing each example in which the column base 31 of the solar cell mount 21 is placed on the upper plate 4 of the above-described pile head cap hardware 2. 13A shows the case where the steel pipe column 1 is misaligned to the X (+) side and the Y (−) side with respect to the column base 31, and FIG. 13B shows the misalignment to the Y (−) side. Each case is shown. (C) in the figure shows the case of misalignment on the X (−) side and Y (−) side, (D) in the figure shows the case of misalignment on the X (+) side, and (E) shows the misalignment. (F) shows the case of misalignment to the X (−) side, and FIG. (G) shows the case of misalignment to the X (+) side and Y (+) side. ) Shows the case of misalignment to the Y (+) side, and FIG. 11 (I) shows the case of misalignment to the X (−) side and Y (+) side. X (+) and X (-) indicate the horizontal direction (span direction of the solar cell mount 21) in the figure, and Y (+) and Y (-) indicate the vertical direction (solar cell mount 21 in the figure). Column direction).

同図から明らかなように、この接合構造によると、鋼管杭１に多少の芯ずれがあっても、杭頭キャップ金物２の上部プレート４におけるルーズ孔４ａと柱脚３１のベースプレート３３におけるルーズ孔３３ａとは必ず直交しており、杭頭接合ボルト８による上部プレート４への柱脚３１の接合が可能である。また、杭頭キャップ金物２の上部プレート４に設けられたハンドホール９は、つねに柱脚３１のベースプレート３３で被覆された状態にあり、杭頭キャップ金物２を鋼管杭１の杭頭に接合するボルト７が雨にさらされることが無く、耐久性を確保することができる。   As is apparent from the figure, according to this joint structure, even if the steel pipe pile 1 is slightly misaligned, the loose hole 4a in the upper plate 4 of the pile head cap hardware 2 and the loose hole in the base plate 33 of the column base 31 are provided. 33a is always orthogonal, and the column base 31 can be joined to the upper plate 4 by the pile head joining bolt 8. The hand hole 9 provided in the upper plate 4 of the pile head cap hardware 2 is always covered with the base plate 33 of the column base 31, and the pile head cap hardware 2 is joined to the pile head of the steel pipe pile 1. The bolt 7 is not exposed to rain, and durability can be ensured.

１…鋼管杭
２…杭頭キャップ金物
３…杭頭プレート
３ａ…雌ねじ部
４…上部プレート
４ａ…ルーズ孔
５…下部外周材
６…接合プレート
６ａ…ボルト孔
７…ボルト
８…杭頭接合ボルト
１０…高さ調整プレート
２１…太陽電池架台
３１…柱脚
３２…ガセットプレート
３３…ベースプレート
３３ａ…ルーズ孔 DESCRIPTION OF SYMBOLS 1 ... Steel pipe pile 2 ... Pile head cap metal 3 ... Pile head plate 3a ... Female thread part 4 ... Upper plate 4a ... Loose hole 5 ... Lower outer peripheral material 6 ... Joint plate 6a ... Bolt hole 7 ... Bolt 8 ... Pile head joint bolt 10 ... Height adjustment plate 21 ... Solar battery mount 31 ... Column base 32 ... Gusset plate 33 ... Base plate 33a ... Loose hole

Claims (7)

太陽電池架台を複数本の各鋼管杭の杭頭に接合する構造であって、
前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有する杭頭キャップ金物と、
前記鋼管杭の杭頭内に溶接されて上下方向の雌ねじ部を有する杭頭プレートとを備え、 前記杭頭キャップ金物の前記下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが設けられ、
この接合プレートと前記杭頭プレートとが、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトにより接合され、
前記杭頭キャップ金物の上部プレートと前記太陽電池架台とが、前記上部プレートおよび太陽電池架台の少なくとも一方に設けられたルーズ孔に挿通される杭頭接合ボルトにより接合され、
前記上部プレートには、前記杭頭プレートの前記雌ねじ部に前記ボルトを螺合させる操作が可能なように、上方から手の差し込みを可能とするハンドホールが設けられ、
前記太陽電池架台は下端にベースプレートを有し、このベースプレートが前記上部プレートに載せられ、前記上部プレートの前記ハンドホールは前記ベースプレートで覆われる ことを特徴とする太陽電池架台と鋼管杭の接合構造。 A structure in which a solar cell mount is joined to a pile head of each steel pipe pile,
An upper plate on which the solar cell mount is placed, and a pile head cap hardware that has a lower outer peripheral material that protrudes downward from the upper plate and surrounds the outer periphery of the pile head of the steel pipe pile,
A pile head plate welded in the pile head of the steel pipe pile and having an internal thread portion in the vertical direction, and has a bolt hole penetrating vertically on an inner circumference of the lower outer peripheral material of the pile head cap hardware. There is a joining plate on the top of the steel pipe pile
This joining plate and the pile head plate are joined by a bolt inserted through the bolt hole and screwed into the female thread portion,
Wherein the pile cap hardware top plate and the solar cell frame is joined by pile fastening bolt inserted through the loose hole provided on at least one of the upper plate and the solar cell frame,
The upper plate is provided with a hand hole that allows a hand to be inserted from above so that an operation of screwing the bolt into the female thread portion of the pile head plate is possible.
The solar cell mount has a base plate at a lower end, the base plate is placed on the upper plate, and the hand hole of the upper plate is covered with the base plate . 太陽電池架台を複数本の各鋼管杭の杭頭に接合する構造であって、A structure in which a solar cell mount is joined to a pile head of each steel pipe pile,
前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有する杭頭キャップ金物と、An upper plate on which the solar cell mount is placed, and a pile head cap hardware that has a lower outer peripheral material that protrudes downward from the upper plate and surrounds the outer periphery of the pile head of the steel pipe pile,
前記鋼管杭の杭頭内に溶接されて上下方向の雌ねじ部を有する杭頭プレートとを備え、 前記杭頭キャップ金物の前記下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが設けられ、A pile head plate welded in the pile head of the steel pipe pile and having an internal thread portion in the vertical direction, and has a bolt hole penetrating vertically on an inner circumference of the lower outer peripheral material of the pile head cap hardware. There is a joining plate on the top of the steel pipe pile,
この接合プレートと前記杭頭プレートとが、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトにより接合され、This joining plate and the pile head plate are joined by a bolt inserted through the bolt hole and screwed into the female thread portion,
前記杭頭キャップ金物の上部プレートと前記太陽電池架台とが、前記上部プレートおよび太陽電池架台の少なくとも一方に設けられたルーズ孔に挿通される杭頭接合ボルトにより接合され、The upper plate of the pile head cap hardware and the solar cell frame are joined by a pile head joining bolt inserted into a loose hole provided in at least one of the upper plate and the solar cell frame,
前記杭頭プレートは前記鋼管杭の上端から下方に離れた位置にあり、前記下部外周材は前記杭頭プレートが位置する高さ位置付近まで下端が延びているThe pile head plate is located at a position spaced downward from the upper end of the steel pipe pile, and the lower outer peripheral material has a lower end extending to the vicinity of a height position where the pile head plate is located.
ことを特徴とする太陽電池架台と鋼管杭の接合構造。This is a joining structure of a solar cell mount and a steel pipe pile. 請求項１または請求項２に記載の太陽電池架台と鋼管杭の接合構造において、前記杭頭プレートが、前記鋼管杭を打ち込む杭打機の治具に係合して杭打ち作業に使用される部材を兼ねる太陽電池架台と鋼管杭の接合構造。 The solar cell mount and steel pipe pile joining structure according to claim 1 or 2 , wherein the pile head plate is used for a pile driving operation by engaging with a jig of a pile driving machine for driving the steel pipe pile. Joining structure of solar cell mount and steel pipe pile that also serves as a member. 請求項１ないし請求項３のいずれか１項に記載の太陽電池架台と鋼管杭の接合構造において、前記杭頭キャップ金物の前記下部外周材が鋼管からなる太陽電池架台と鋼管杭の接合構造。 The joining structure of the solar cell mount and the steel pipe pile according to any one of claims 1 to 3, wherein the lower outer peripheral material of the pile head cap hardware is a steel pipe. 請求項１ないし請求項４のいずれか１項に記載の太陽電池架台と鋼管杭の接合構造において、前記杭頭キャップ金物の前記接合プレートと前記杭頭プレートとの間に高さ調整プレートを介在させた太陽電池架台と鋼管杭の接合構造。 5. The solar cell mount and steel pipe pile joint structure according to claim 1 , wherein a height adjustment plate is interposed between the joint plate of the pile head cap hardware and the pile head plate. Structure of solar cell mount and steel pipe pile. 請求項１ないし請求項５のいずれか１項に記載の太陽電池架台と鋼管杭の接合構造において、前記杭頭接合ボルトは、前記杭頭キャップ金物の上部プレートに設けられた前記ルーズ孔である長孔と、太陽電池架台に設けられて前記上部プレートの長孔に直交するルーズ孔である長孔とに渡って挿通した太陽電池架台と鋼管杭の接合構造。 The solar cell mount and steel pipe pile joint structure according to any one of claims 1 to 5 , wherein the pile head joint bolt is the loose hole provided in the upper plate of the pile head cap hardware. A joining structure of a solar cell frame and a steel pipe pile inserted through a long hole and a long hole which is provided in the solar cell frame and is a loose hole orthogonal to the long hole of the upper plate. 太陽電池架台を複数本の各鋼管杭の杭頭に接合する接合構造に用いられる杭頭キャップ金物であって、
前記太陽電池架台を載せる上部プレート、およびこの上部プレートから下方に突出して前記鋼管杭の杭頭の外周を囲む下部外周材を有し、
この下部外周材の内周に、上下に貫通するボルト孔を有し前記鋼管杭の上端に載る接合プレートが溶接され、
前記鋼管杭の杭頭内に前記鋼管杭の上端から下方に離れた位置に溶接されて上下方向の雌ねじ部を有する杭頭プレートと前記接合プレートとが、前記ボルト孔に挿通されて前記雌ねじ部に螺合するボルトで接合され、
前記杭頭キャップ金物の上部プレートに、前記太陽電池架台と接合する杭頭接合ボルトを挿通するルーズ孔が設けられ、
前記下部外周材は前記杭頭プレートが位置する高さ位置付近まで下端が延びている
ことを特徴とする杭頭キャップ金物。 Pile head cap hardware used in the joint structure to join the solar cell mount to the pile heads of each steel pipe pile,
An upper plate on which the solar cell mount is placed, and a lower outer peripheral material that projects downward from the upper plate and surrounds the outer periphery of the pile head of the steel pipe pile;
On the inner periphery of this lower outer peripheral material, a joining plate that has a bolt hole penetrating vertically is placed on the upper end of the steel pipe pile, and is welded.
A pile head plate welded to a position spaced downward from the upper end of the steel pipe pile in the pile head of the steel pipe pile and having a female screw portion in the vertical direction and the joining plate are inserted through the bolt holes and the female screw portion. Are joined with bolts that are screwed onto
Wherein the top plate of the pile head cap fittings, loose holes provided we are inserting the pile fastening bolt to be bonded to the solar cell frame,
The lower outer peripheral material has a lower end extending to the vicinity of a height position where the pile head plate is located .
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