JP6127325B2 - Support frame for anchor ring installation of windmill tower and manufacturing method thereof - Google Patents

Support frame for anchor ring installation of windmill tower and manufacturing method thereof Download PDF

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JP6127325B2
JP6127325B2 JP2015101382A JP2015101382A JP6127325B2 JP 6127325 B2 JP6127325 B2 JP 6127325B2 JP 2015101382 A JP2015101382 A JP 2015101382A JP 2015101382 A JP2015101382 A JP 2015101382A JP 6127325 B2 JP6127325 B2 JP 6127325B2
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leg
base
support frame
anchor ring
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JP2016205109A (en
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伊藤 利夫
利夫 伊藤
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines

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Description

本発明は、モノポール式構造である風車タワーのアンカーリング据付用の支持架台に係わり、特に、風力発電設備において風車タワーを据付するために風車タワー基礎に埋め込むこととなるアンカーリングの据付用の支持架台に関する。    The present invention relates to a support frame for anchor ring installation of a wind turbine tower having a monopole structure, and in particular, for anchor ring installation to be embedded in a wind turbine tower foundation in order to install the wind turbine tower in a wind power generation facility. It relates to the support frame.

風力発電設備における風車タワーの据付・組立を行うために、風車タワーの土台となるアンカーリングをコンクリート打設前の風車タワー基礎内に据付けを行うこととなるが、アンカーリングの重量は約1.5トンと重いことと、据付け高さのレベル精度がアンカーリングの最上部の対角線上において、高低差で2mm以内となっていることから、頑丈で安定性があり、据付け高さの調整が容易である支持架台が求められている。    In order to install and assemble the wind turbine tower in the wind power generation facility, the anchor ring that will serve as the foundation of the wind turbine tower is installed in the foundation of the wind turbine tower before the concrete is placed. Because it is heavy at 5 tons and the level accuracy of the installation height is within 2 mm on the diagonal line at the top of the anchor ring, it is sturdy and stable, and the installation height can be easily adjusted. There is a need for a support stand.

従来の支持架台は、風車タワー基礎の造成工程の中において、基礎均しコンクリートの厚さを部分的に厚く補強し、その補強した部分に支持架台の脚部材を固定するためのアンカーボルトやアングル材、U形鋼、ガス管および鋼板プレート等を埋め込むなど、複雑な組立て工法によりアンカーリング用の支持架台を設置していたことから、準備工を合わせると多大な現地作業が発生していた。    The conventional support frame is a part of the wind turbine tower foundation, in which the thickness of the foundation leveling concrete is partially increased, and anchor bolts and angles for fixing the leg members of the support frame to the reinforced part. Since a support frame for anchoring was installed by a complicated assembly method such as embedding materials, U-shaped steel, gas pipes and steel plate, etc., a lot of on-site work was generated when the preparation work was put together.

また、従来技術では支持架台を基礎ベース鉄筋の配筋作業前に設置することから、基礎ベース鉄筋の配筋作業においては、支持架台の設置場所では、鉄筋を横から差し込む工法となり、かつ基礎の中心部に杭の鉄筋が立ち上がっている場合は、立ち上がっている鉄筋の狭い間に差し込むこととなり、作業の難易度が高く労力のかかる作業となっていた。    In addition, in the conventional technology, since the support frame is installed before the reinforcement work for the foundation base rebar, in the reinforcement work for the foundation base reinforcement, the rebar is inserted from the side at the place where the support frame is installed, and the foundation When the reinforcing bar of the pile is standing up at the center, it is inserted between the standing reinforcing bars, and the work is difficult and labor-intensive.

さらには、アンカーリングを据付する時のアンカーリング自体のレベル調整用として、アンカーリングの最下部に接合されている幅のある同心円型の鋼板製底盤に、高さを調整できるアジャストボルトの3個以上をナット2個で挟んで取付けていることから、アンカーリングを据付けしてからのレベル確認およびレベル調整となるために、油圧ジャッキを3台以上使用してレベル調整を行う方法、またはアジャストボルトを調整する都度に、重機で吊り降ろしを繰り返す方法など、特殊な技術を要していた。    In addition, for adjusting the level of the anchor ring itself when installing the anchor ring, three adjustable bolts that can be adjusted in height on a wide concentric steel plate bottom joined to the bottom of the anchor ring. Since the above is sandwiched between two nuts, the level adjustment and level adjustment after the anchor ring is installed can be used to adjust the level using three or more hydraulic jacks, or adjustment bolts. Each time adjustments were made, special techniques were required, such as a method of repeatedly suspending with heavy machinery.

以上に述べた背景技術から、アンカーリングの据付けにおいて従来のアンカーリング用の支持架台では、基礎ベース鉄筋の配筋作業を施工する前に、各部材を電気溶接で組み立ててしまうことから、基礎ベース鉄筋の配筋作業を施工するにあたって、重量の重い鉄筋を横方向から差し込むこととなり、作業が難しく、多大な労力の負担を課すことから好ましくない。    Based on the background art described above, in the conventional anchoring support frame for anchoring, each member is assembled by electric welding before constructing the base base reinforcing bar. When constructing the reinforcing bar, the heavy reinforcing bar is inserted from the lateral direction, which is not preferable because it is difficult to work and imposes a great labor load.

また、従来のアンカーリング用の支持架台は、アングル、U形鋼、ガス管およびプレート等を電気溶接で組立てる複雑な構造となっていることから、組立てに時間を多く要する欠点があった。    Further, since the conventional support frame for anchoring has a complicated structure in which an angle, a U-shaped steel, a gas pipe, a plate, and the like are assembled by electric welding, there is a drawback that a lot of time is required for assembly.

さらに、アンカーリングのレベル調整をアンカーリングの鋼板製底盤に付属したアジャストベースで行うことから、アンカーリングを支持架台への据付け完了後に行っているが、アンカーリングの重量は約15トンと重く、油圧ジャッキ3台を使用しての微調整をおこなう工法、またはアジャストボルトを調整する都度に、重機で吊り降ろしを繰り返す工法となることから作業は高度な技術を必要とし、作業時間が多くかかるなどの欠点があった。    Furthermore, since the adjustment of the level of the anchor ring is performed with the adjustment base attached to the steel plate bottom plate of the anchor ring, the anchor ring is performed after the installation to the support frame is completed, but the weight of the anchor ring is about 15 tons, Work requires advanced technology and requires a lot of work time because it is a method of making fine adjustments using three hydraulic jacks or a method of repeatedly hanging down with heavy machinery every time adjustment bolts are adjusted. There were drawbacks.

本発明の課題は、アンカーリング据付用の支持架台の設置が容易であり、基礎ベース鉄筋などの配筋作業を軽減し、かつアンカーリング据付時の作業性を向上させることにある。    An object of the present invention is to easily install a support pedestal for anchor ring installation, to reduce the work of arranging bars such as foundation base reinforcing bars, and to improve workability at the time of anchor ring installation.

本発明の支持架台は、少なくとも6本の脚と、この脚の脚主材の上部を1組以上の組立用ボルト・ナットで連結して固定する脚連結用部材と、脚のぐらつきを防止するために脚の3本を1組としてT字型に配置して脚主材の上部に取付けてある脚連結用部材の一部に1組以上の組立用ボルト・ナットで固定する脚固定用部材と、脚の下部のずれを防止するために脚の脚主材の最下部に溶接で取付けてある脚ベース鋼材を連結して溶接などで固定するベース連結・固定用部材と、支持架台の全体を補強するために、隣り合った前記脚の脚主材の相互間に筋違いのごとく角度をつけて溶接などで取付ける1本以上の脚補強用斜材とを備えた構成とすることにより、上記課題を解決する。    The support frame of the present invention prevents at least six legs, a leg connecting member that connects and fixes the upper part of the leg main material of the leg with one or more sets of assembly bolts and nuts, and wobbling of the legs. For this purpose, a leg fixing member which is arranged in a T-shape as a set of three legs and is fixed to a part of a leg connecting member attached to the upper part of the leg main material with one or more sets of assembly bolts and nuts. In order to prevent the lower part of the leg from slipping, a base connection / fixing member that connects the leg base steel material that is attached to the bottom of the leg main material of the leg by welding and is fixed by welding, etc., and the entire support frame In order to reinforce the above, the structure is provided with one or more leg reinforcing diagonal members that are attached by welding or the like with an angle between the leg main members of the adjacent legs attached at different angles. Solve the problem.

このような構成とすれば、支持架台の前記脚の脚主材の上部を連結して固定する脚連結用部材と、脚の3本を1組としてT字型に配置して脚主材の上部を固定する脚固定用部材については組立用ボルト・ナットでの組立てを行う工法を採用することにより、一時的に取外すことや再度の組立てが容易となり、基礎ベース鉄筋の配筋作業時には、脚連結用部材と脚固定用部材を一旦取り外すことにより、基礎ベース鉄筋の配筋作業において重機を使用した吊り降ろし作業が可能となり、配筋位置に鉄筋を直接配置することができることから、従来工法と比較して、基礎ベース鉄筋の配筋作業の作業性を向上することができる。    With such a configuration, a leg connecting member for connecting and fixing the upper part of the leg main material of the leg of the support frame and a pair of the three legs are arranged in a T shape to form a leg main material. The leg fixing member that fixes the upper part can be temporarily removed and reassembled easily by using a method of assembling with assembly bolts and nuts. By temporarily removing the connecting member and the leg fixing member, it is possible to hang down the base base rebar using heavy machinery, and the rebar can be placed directly at the rebar position. In comparison, it is possible to improve the workability of the reinforcement work of the base base rebar.

さらに、隣り合った前記脚の脚主材の相互間の上下に筋違いのごとく角度をつけて溶接などで取付ける1本以上の脚補強用斜材を備えた構成とすることにより、支持架台の全体の強度が増して、アンカーリングの据付後における支持架台の安定性を向上することができる。    In addition, the entire support frame is configured by including at least one leg reinforcing diagonal member that is attached by welding or the like at an angle in the vertical direction between adjacent leg main members of the legs. As a result, the stability of the support frame after installation of the anchor ring can be improved.

前記脚には、アンカーリングを乗せて高さを調整できるアジャストベースを取付けるために、1つ以上の貫通孔を穿設した脚天端鋼材を脚の脚主材の最上部に溶接して取付けると共に、脚を固定するアンカーボルトを取付けるための4つ以上の貫通孔を穿設した脚ベース鋼材を脚主材の最下部に溶接して取付けた構成となっていることから、上記課題を解決する。    In order to attach an adjust base on which the height can be adjusted by placing an anchor ring on the leg, a leg top end steel material having one or more through holes is welded to the top of the leg main material of the leg. At the same time, the base steel material having four or more through holes for attaching anchor bolts for fixing the legs is welded and attached to the lowermost part of the leg main material. To do.

なお、このような構成とすれば、脚の最下部に取付けている脚ベース鋼材に穿設してあるアンカーボルトを取付けるための4つ以上の貫通孔に対して、4ヶ所以上を基礎均しコンクリートにアンカーボルトで固定することができ、転倒の防止面で安定性が向上する。また、基礎均しコンクリートに設定するアンカーボルトには、打ち込み式アンカーボルトを採用することができ作業性を向上することができる。    With such a configuration, the four or more through holes for mounting the anchor bolts drilled in the leg base steel material attached to the lowermost part of the leg are provided with four or more basic levels. It can be fixed to concrete with anchor bolts, improving stability in terms of preventing falling. Moreover, a drive-in type anchor bolt can be adopted as the anchor bolt set to the foundation leveling concrete, and workability can be improved.

また、前記アジャストベースは、前記アンカーリングの据付面となるアンカーリング据付用鋼板を最上部に設けて、アンカーリング据付用鋼板の上側面の裏面である下側面の中心部分に、1個以上の溶接固定用ナットを全ネジボルトの上側先端部分に螺合させた先端を鉛直に溶接し、全ネジボルトの中央部分に螺合させた2個以上の挟着用ナットを取付けた構成とし、脚の脚主材の最上部に設けた脚天端鋼材に穿設した1つの貫通孔に、アジャストベースの全ネジボルトを挿通して、全ネジボルトの中央部分に螺合してある2個以上の挟着用ナットで脚天端鋼材を挟み込んで挟着して固定する工法とする。さらには、アジャストベースを支持架台の脚の3箇所以上に取付けることで、上記課題を解決する。    Further, the adjustment base is provided with an anchoring installation steel plate to be an installation surface of the anchor ring at the uppermost portion, and at least one or more at the center portion of the lower surface that is the back surface of the upper side surface of the anchoring installation steel plate. The welded nut is screwed vertically to the upper tip of all screw bolts, the tip is welded vertically, and two or more pinching nuts screwed to the center of all screw bolts are attached. Two or more pinching nuts that are screwed into the central part of all screw bolts by inserting all screw bolts of the adjustment base into one through hole drilled in the top of the leg top end steel material. A construction method in which the top of the leg steel material is clamped and fixed. Furthermore, the above-mentioned problem is solved by attaching the adjustment base to three or more positions of the legs of the support frame.

なお、前記アジャストベースをこのような構成とすれば、前記脚の脚主材の最上部に設けた脚天端鋼材に取付けたアジャストベースは、脚天端鋼材に穿設した1つの貫通孔に前記アジャストベースのアンカーリング据付用鋼板の下側面に鉛直に溶接した全ネジボルトを挿通して、全ネジボルトの中央部分に螺合した2個以上の挟着用ナットで脚天端鋼材を挟み込んで挟着して固定することから、全ネジボルトの中央部分に螺合した2個以上の挟着用ナットの位置を調整することにより、全ネジボルトを上下に移動させて、前記アンカーリングの据付面であるアジャストベースのアンカーリング据付用鋼板の上面高さを高精度に調整して固定できることから、アンカーリングを据付けた後に特段のレベル調整は不要となり、作業性が向上することとなる。    If the adjustment base has such a configuration, the adjustment base attached to the leg top end steel material provided at the uppermost part of the leg main material of the leg is inserted into one through hole formed in the leg top end steel material. Insert all screw bolts vertically welded to the bottom side of the steel plate for anchor base anchoring installation, and pinch the top of the leg with two or more clamping nuts screwed into the center of all screw bolts. Adjust the position of two or more pinching nuts screwed into the central part of all the screw bolts, and move all the screw bolts up and down to adjust the base of the anchor ring. Because the height of the top surface of the anchoring installation steel plate can be adjusted with high precision and fixed, no special level adjustment is required after the anchoring is installed, improving workability. To become.

なお、前述の支持架台の脚および脚連結用部材および脚固定用部材については、工場において製作を行なうことで、現場における支持架台の骨格を形成する組立作業を組立用ボルト・ナットによる組立方式としたことから、現場での作業は支持架台の脚部の位置関係を基礎均しコンクリートの表面に芯出し作業を行った後に、脚と脚連結用部材及び脚固定用部材を組立用ボルト・ナットで組立てを行う工法により、組立作業の作業性を向上することができる。    The above-mentioned support pedestal legs, leg connecting members, and leg fixing members are manufactured at the factory so that the assembly work for forming the skeleton of the support pedestal at the site can be performed by an assembly method using assembly bolts and nuts. Therefore, in the field work, the position of the legs of the support base is balanced and the centering work is performed on the surface of the concrete, and then the legs, the leg connecting members and the leg fixing members are assembled with bolts and nuts for assembly. The workability of assembling work can be improved by the method of assembling in the above manner.

さらには、脚の上部を固定するための脚固定用部材の配置については、脚が6本以上ある内の、3本を1組として、2ヶ所以上をT字形に固定する工法を採用することにより、前記支持架台の中心部分に支持架台の構成部材が存在しないことから、基礎杭立上り鉄筋などが立ち上がっている場合であっても支障にならずに支持架台を組立てることができることから、支持架台の中心部分に障害物があった場合でも、作業に支障をきたすことはなく、作業性を向上することができる。    Furthermore, with regard to the arrangement of the leg fixing members for fixing the upper part of the legs, a method of fixing two or more places in a T-shape with three of the legs as one set is adopted. Therefore, since there is no component of the support frame in the center part of the support frame, the support frame can be assembled without any trouble even when the foundation pile rising rebar is standing up. Even if there is an obstacle at the center of the work, the work is not hindered and workability can be improved.

本発明によれば、モノポール式構造の風車タワーのアンカーリングの据付作業における作業性の向上と、関連した基礎工事付帯工事における作業性を向上できる。    ADVANTAGE OF THE INVENTION According to this invention, the workability | operativity in the installation work of the anchor ring of the windmill tower of a monopole structure can be improved, and the workability | operativity in related incidental work of foundation work can be improved.

本発明を適用してなる支持架台の一実施形態の概略構成を示す側面図である。It is a side view which shows schematic structure of one Embodiment of the support stand to which this invention is applied. 本発明を適用してなる支持架台の一実施形態の概略構成を示す平面図および断面図である。It is the top view and sectional view which show schematic structure of one Embodiment of the support stand to which this invention is applied. 本発明を適用してなる支持架台の一実施形態の概略構成を示す斜視図である。It is a perspective view which shows schematic structure of one Embodiment of the support stand to which this invention is applied. 支持架台の一部分を拡大して示す斜視図である。It is a perspective view which expands and shows a part of support stand. アンカーリングの据付後における支持架台の一部分を拡大して示す斜視図である。It is a perspective view which expands and shows a part of support frame after installation of an anchor ring.

以下、本発明を適用してなる支持架台の一実施形態について図1及び図5を参照して説明する。図1は、本発明をしてなる支持架台を基礎均しコンクリートの表面に設置し、基礎ベース鉄筋の配筋作業及びアンカーリングの据付作業が完了した状態の1例を示す側面図である。図2は、支持架台が風車タワー基礎内に収まった状態の1例を示す平面図及び断面図である。図3は、支持架台の概略構成を示す斜視図である。図4は、支持架台の一部分を拡大して示す斜視図である。図5は、アンカーリングを据付けた場合の1例における支持架台の一部分を拡大して示す斜視図である。    Hereinafter, an embodiment of a support frame to which the present invention is applied will be described with reference to FIGS. 1 and 5. FIG. 1 is a side view showing an example of a state in which a support base according to the present invention is installed on the surface of foundation leveling concrete, and the reinforcement work of the foundation base reinforcement and the installation work of the anchor ring are completed. FIG. 2 is a plan view and a cross-sectional view showing an example of a state in which the support frame is housed in the wind turbine tower foundation. FIG. 3 is a perspective view showing a schematic configuration of the support frame. FIG. 4 is an enlarged perspective view showing a part of the support frame. FIG. 5 is an enlarged perspective view showing a part of a support frame in an example in which an anchor ring is installed.

本実施形態の支持架台1は、図1及び図3に示すように、6本の脚2、6本の脚2の脚主材2aの上方部を連結して組立用ボルト・ナット9で固定する脚連結用部材3a・3b、脚2のぐらつきを防止するために、脚2が6本ある内の脚主材2aの3本を1組として脚連結用部材3aの中心部上面にT字型に配置して脚主材2aの上方部を組立用ボルト・ナット9で固定する脚固定用部材5a・5b、6本の脚主材2aの最下部に取付けてある脚ベース鋼材2cの相互間を連結して溶接などで固定するベース連結・固定用部材4、6本の脚2の脚主材2aの相互間を筋違いのごとく上下に角度をつけて溶接などで固定する脚補強用斜材6、そして6本の脚主材2aの最上部にある脚天端鋼材2bに取付けてアンカーリング10を乗せるアジャストベース7などで構成されている。    As shown in FIGS. 1 and 3, the support frame 1 of the present embodiment is connected to the upper portions of the leg main material 2 a of the six legs 2 and the six legs 2 and fixed with the assembly bolts and nuts 9. In order to prevent the leg connecting members 3a and 3b and the leg 2 from wobbling, a pair of three of the leg main members 2a of the six legs 2 is formed as a pair on the upper surface of the center of the leg connecting member 3a. The leg fixing members 5a and 5b, which are arranged in the mold and fix the upper part of the leg main member 2a with the assembly bolts and nuts 9, and the leg base steel members 2c attached to the lowermost part of the six leg main members 2a. The base connecting / fixing member 4 that connects and fixes by welding or the like, and the leg reinforcing slant that is fixed by welding or the like by forming an angle vertically between the leg main members 2a of the six legs 2 like a streak. An adjuster on which the anchor ring 10 is mounted by being attached to the leg top end steel material 2b at the top of the material 6 and the six main leg materials 2a. Tobesu 7 is composed of such.

脚2は、十分な強度及び剛性を有している鋼材で構成されており、図4に示すように、脚主材2aと、脚主材2aの最上部に溶接などで取付けた脚天端鋼材2bと、脚主材2aの最下部に溶接などで取付けた脚ベース鋼材2cなどによって構成されている。また、脚主材2aの上方部には、脚2を連結するための脚連結用部材3aを組立用ボルト・ナット9で挟着するために穿設した2つの貫通孔がある。脚天端鋼材2bには、アジャストベースを取付けるために穿設した1つの貫通孔がある。さらに、脚ベース鋼材2cには、穿設した4つの貫通孔があり、風車タワー基礎19の基礎均しコンクリート12に設定するアンカーボルト8を挿通することができ、基礎均しコンクリート12に堅固に固定できるように構成したものである。    The leg 2 is made of a steel material having sufficient strength and rigidity. As shown in FIG. 4, the leg top 2a and the top of the leg attached to the uppermost part of the leg main 2a by welding or the like. It is comprised by the steel base 2b, the leg base steel 2c etc. which were attached to the lowest part of the leg main material 2a by welding etc. Further, in the upper part of the leg main member 2 a, there are two through holes that are formed so that the leg connecting member 3 a for connecting the leg 2 is clamped by the assembly bolt and nut 9. The leg top end steel material 2b has one through-hole drilled for attaching the adjustment base. Further, the leg base steel material 2c has four through-holes drilled, and can be inserted with anchor bolts 8 set on the foundation leveling concrete 12 of the windmill tower foundation 19, so that the foundation leveling concrete 12 is firmly attached. It is configured so that it can be fixed.

なお、支持架台1の脚2のアンカーボルト8による据付作業前には、風車タワー基礎19の基礎均しコンクリート12の打設後に、基礎均しコンクリート12の表面に支持架台1の脚2の位置について芯出し作業を行い、脚2の位置を設定する工法により、作業性を向上することができる。    In addition, before the installation work of the anchor 2 of the legs 2 of the support frame 1 with the anchor bolts 8, the position of the legs 2 of the support frame 1 is placed on the surface of the foundation leveling concrete 12 after the foundation leveling concrete 12 of the wind turbine tower foundation 19 is placed. The workability can be improved by performing a centering operation on and setting the position of the leg 2.

また、6本の脚2の脚主材2aの上方部を連結して固定する脚連結用部材3a・3bは、十分な強度及び剛性を有している鋼材であり、脚連結用部材3aには脚主材2aの上方部に固定するために、部材の一面の中央部分に2つの貫通孔が穿設され、脚連結用部材3bとの固定用として直角に相対した面の両端に各1つの貫通孔が穿設されており、その中央部には脚固定用部材5a・5bを固定するための1つの貫通孔が穿設されている。さらには、脚連結用部材3bには、脚連結用部材3aとの固定用として部材の一面の両端に各1つの貫通孔が穿設されている。脚連結用部材3aは、図4に示すように、脚主材2aの上方部に穿設されている2つの貫通孔と自身の中央部分に穿設された2つの貫通孔を組立用ボルト・ナット9により挟着させて取付ける。また、脚連結用部材3bについては、図4に示すように、両端に穿設した各1つの貫通孔と脚連結用部材3aの両端に穿設した各1つの貫通孔とを組立用ボルト・ナット9により挟着させて取付けて、脚主材2aの上方部を連結して固定できるように構成したものである。    Further, the leg connecting members 3a and 3b for connecting and fixing the upper portions of the leg main members 2a of the six legs 2 are steel materials having sufficient strength and rigidity, and are attached to the leg connecting member 3a. In order to fix to the upper part of the leg main material 2a, two through holes are formed in the central portion of one surface of the member, and 1 is provided at each end of the surface facing at right angles for fixing to the leg connecting member 3b. Two through holes are formed, and one through hole for fixing the leg fixing members 5a and 5b is formed at the center thereof. Further, the leg connecting member 3b is provided with one through hole at each end of one surface of the member for fixing to the leg connecting member 3a. As shown in FIG. 4, the leg connecting member 3a includes two through holes formed in the upper part of the leg main member 2a and two through holes formed in the center part thereof. The nut 9 is used for clamping. Further, as shown in FIG. 4, each leg connecting member 3b includes one through hole drilled at both ends and one through hole drilled at both ends of the leg connecting member 3a. The upper portion of the leg main material 2a can be connected and fixed by being clamped by a nut 9.

また、脚固定用部材5a・5bは、十分な強度及び剛性を有している鋼材であり、図2及び図3に示すように、脚2が6本の内、3本を1組として脚2に組立用ボルト・ナット9で挟着してある脚連結用部材3aの中心部上面に穿設した1つの貫通孔に、脚固定用部材5a及び脚固定用部材5bをT字型に配置して、脚2の上方部のぐらつきを防止するもので、脚固定用部材5aには脚連結用部材3aの中心部上面に穿設した1つの貫通孔と組立用ボルト・ナット9で挟着して取付けるための両端に穿設した各1つの貫通孔と、同じ面の中央には脚固定用部材5bを組立用ボルト・ナット9で挟着するための穿設した1つの貫通孔を設けてあり、さらに、脚固定用部材5bの両端には、穿設した各1つの貫通孔があり、一方は脚連結用部材3aの中心部上面に穿設した1つの貫通孔と、一方は脚固定用部材5aの中央部に穿設した1つの貫通孔とを組立用ボルト・ナット9により挟着させて、T字型に配置することで脚2のぐらつきを防止できる構成とした。なお、脚2が6本以上ある内の、3本を1組として、2ヶ所以上を脚固定用部材5a・5bによりT字形に組立てて固定する工法を採用することで、支持架台1の中心部分には構造物が無いスペースができることから、風車タワー基礎19の中心部分に基礎杭立上り鉄筋18などが立ち上がっていた場合でも支障なく支持架台1の骨格を形成することができることから作業性を向上させることができる。    Further, the leg fixing members 5a and 5b are steel materials having sufficient strength and rigidity. As shown in FIGS. 2 and 3, the leg 2 is composed of 6 legs and 3 legs. The leg fixing member 5a and the leg fixing member 5b are arranged in a T-shape in one through hole formed in the upper surface of the central portion of the leg connecting member 3a sandwiched between the assembly bolts and nuts 9 in FIG. In order to prevent the upper part of the leg 2 from wobbling, the leg fixing member 5a is clamped by one through hole drilled in the upper surface of the center part of the leg connecting member 3a and an assembly bolt / nut 9 1 through hole drilled at both ends for mounting and one through hole drilled for clamping the leg fixing member 5b with the assembly bolt / nut 9 at the center of the same surface. Furthermore, there are one through-holes drilled at both ends of the leg fixing member 5b, one of which is the leg connecting member 3 One through-hole drilled in the upper surface of the central portion of the first and one through-hole drilled in the central portion of the leg fixing member 5a are clamped by an assembly bolt / nut 9 to form a T-shape. It was set as the structure which can prevent the wobbling of the leg 2 by arrange | positioning. The center of the support base 1 is adopted by adopting a construction method in which three of the two legs 2 are set as one set, and two or more places are assembled and fixed in a T shape by the leg fixing members 5a and 5b. Since there is a space with no structure in the part, even if the foundation pile rising rebar 18 etc. stands up at the center part of the windmill tower foundation 19, the skeleton of the support frame 1 can be formed without hindrance. Can be made.

また、ベース連結・固定用部材4は、十分な強度及び剛性を有している鋼材であり、図3及び図4に示すように、脚2の脚ベース鋼材2cの設置位置を決定して、脚ベース鋼材2cに穿設した4つの貫通孔にアンカーボルト8を設定して基礎均しコンクリート12に固定してから、脚ベース鋼材2cの相互間を連結して溶接などで固定し、脚2の設置位置を確定し、アンカーボルト8の強度を補助することができる。なお、基礎均しコンクリート12に設定するアンカーボルト8は、打ち込み式アンカーボルトを採用でき作業性を向上することができる。この際、脚2の脚主材2aの最上部に溶接などで取付けた脚天端鋼材2bの上面は水平が確保される状態で固定することで、さらに作業性が向上する。    Further, the base connecting / fixing member 4 is a steel material having sufficient strength and rigidity. As shown in FIGS. 3 and 4, the installation position of the leg base steel material 2c of the leg 2 is determined, The anchor bolts 8 are set in the four through holes formed in the leg base steel material 2c and fixed to the foundation leveling concrete 12, and the leg base steel materials 2c are connected to each other and fixed by welding or the like. Can be determined, and the strength of the anchor bolt 8 can be assisted. In addition, the anchor bolt 8 set to the foundation leveling concrete 12 can employ | adopt a drive-in type anchor bolt, and can improve workability | operativity. At this time, the workability is further improved by fixing the upper surface of the leg top end steel material 2b attached to the uppermost portion of the leg main material 2a of the leg 2 by welding or the like in a state in which the level is ensured.

なお、図4のとおり、基礎ベース鉄筋11とベース連結・固定用部材4との位置関係は、基礎ベース鉄筋11に対するコンクリートのかぶりを確保するために、基礎均しコンクリート12の表面から基礎ベース鉄筋11までの離れをベース連結・固定用部材4の高さ以上の距離L8を確保することとなり、基礎ベース鉄筋11とベース連結・固定用部材4との間で接触などによる干渉および支障はない構成となっている。    As shown in FIG. 4, the positional relationship between the base base rebar 11 and the base connection / fixing member 4 is determined from the surface of the base leveling concrete 12 to ensure the covering of the concrete with respect to the base base rebar 11. The distance L8 beyond the height of the base connection / fixing member 4 is secured at a distance up to 11, and there is no interference and troubles due to contact between the base base rebar 11 and the base connection / fixation member 4 It has become.

上記の作業が完了すれば、支持架台1の骨格の形成は完了し、組立用ボルト及びナット9で挟着してある脚連結用部材3a・3b及び脚固定用部材5a・5bを一時的に取り外しても、脚2についてはアンカーボルト8及びベース連結・固定用部材4により堅固に固定されていることから、人間が押した程度の外力では、微動もしない構成となっている。このことから、基礎ベース鉄筋11の配筋作業を行う際には、脚連結用部材3a・3b及び脚固定用部材5a・5bを一時的に取り外し、基礎ベース鉄筋11の配筋箇所の障害物を極力少なくして、重機による吊り降ろし作業を可能とすることで、基礎ベース鉄筋11を所定の場所に直接配置できることから、配筋作業の作業性を向上させることができる。    When the above operation is completed, the formation of the skeleton of the support frame 1 is completed, and the leg connecting members 3a and 3b and the leg fixing members 5a and 5b sandwiched by the assembly bolts and nuts 9 are temporarily attached. Even if the leg 2 is removed, the leg 2 is firmly fixed by the anchor bolt 8 and the base connecting / fixing member 4, so that the external force that is pushed by a human does not cause a slight movement. Therefore, when performing the reinforcement work of the base base rebar 11, the leg connecting members 3 a, 3 b and the leg fixing members 5 a, 5 b are temporarily removed to obstruct the reinforcement of the base base rebar 11. Since the foundation base rebar 11 can be directly arranged at a predetermined place by making the suspension work by heavy machinery possible as much as possible, the workability of the bar arrangement work can be improved.

基礎ベース鉄筋11の配筋作業が完了後には、一時的に取り外してある脚連結用部材3a・3b及び脚固定用部材5a・5bを組立用ボルト及びナット9で挟着して固定し、再度支持架台1の骨格の形成を完了することができる。    After the reinforcement work of the base base rebar 11 is completed, the leg connecting members 3a and 3b and the leg fixing members 5a and 5b, which have been temporarily removed, are clamped and fixed with the assembly bolts and nuts 9, and again. The formation of the skeleton of the support frame 1 can be completed.

また、脚補強用斜材6は、十分な強度及び剛性を有している鋼材であり、図1及び図3に示すように、隣り合った脚2の脚主材2aの相互間の上下に筋違いのごとく角度をつけて1本以上を溶接などで取付ける構成とすることにより、支持架台1の全体の強度が増して、アンカーリング10の据付後における支持架台1の安定性を向上することができる。    Further, the leg reinforcing diagonal member 6 is a steel material having sufficient strength and rigidity, and as shown in FIG. 1 and FIG. 3, the leg reinforcing material 6 is vertically disposed between the leg main members 2 a of the adjacent legs 2. By adopting a configuration in which one or more are attached by welding or the like at different angles, the overall strength of the support gantry 1 is increased, and the stability of the support gantry 1 after the anchor ring 10 is installed can be improved. it can.

また、アジャストベース7は、十分な強度及び剛性を有している鋼材で構成されており、アンカーリング10の据付面となるアンカーリング据付用鋼板7aと、アンカーリング据付用鋼板7aの上側面の裏面である下側面の中心部分に、1個以上の溶接固定用ナット7bを全ネジボルト7cの上側先端部分に螺合させた先端を溶接固定用ナット7bと共に鉛直に溶接し、全ネジボルト7cの中央部分に螺合させた2個以上の挟着用ナット7d・7eを設けた構成とし、脚2の脚主材2aの最上部に設けた脚天端鋼材2bに穿設した1つの貫通孔に、アジャストベース7の全ネジボルト7fを挿通して、全ネジボルトの中央部分に螺合した2個以上の挟着用ナット7d・7eで脚天端鋼材2bを挟み込んで挟着して固定する構成とする。さらには、アンカーリング10の重量の分散及びアジャストベース7への負担軽減を考慮して、アジャストベース7を脚2の各々に取付けることで6個とすれば、アンカーリング据付け後における安定性が向上することとなる。    The adjustment base 7 is made of a steel material having sufficient strength and rigidity, and is provided with an anchoring installation steel plate 7a to be an installation surface of the anchor ring 10 and an upper side surface of the anchor ring installation steel plate 7a. At the center portion of the lower surface that is the back surface, one or more welding fixing nuts 7b are screwed to the upper tip portion of all screw bolts 7c and vertically welded together with the welding fixing nuts 7b. It is configured to provide two or more pinching nuts 7d and 7e that are screwed to the part, and in one through hole drilled in the leg top end steel material 2b provided at the top of the leg main material 2a of the leg 2, The entire screw bolt 7f of the adjustment base 7 is inserted, and the leg top end steel material 2b is sandwiched and fixed by two or more sandwiching nuts 7d and 7e screwed to the central portion of all the screw bolts. Furthermore, considering the dispersion of the weight of the anchor ring 10 and the reduction of the load on the adjustment base 7, if six adjustment bases 7 are attached to each of the legs 2, the stability after installation of the anchor ring is improved. Will be.

なお、アジャストベース7をこのような構成とすれば、全ネジボルト7fの中央部分に螺合した2個以上の挟着用ナット7d・7eで脚天端鋼材2bを挟み込んで挟着して固定することから、全ネジボルト7c・7fの中央部分に螺合した2個以上の挟着用ナット7d・7eの位置を調整することにより、全ネジボルト7c・7fを上下に移動させて、アンカーリング10の据付面であるアジャストベース7のアンカーリング据付用鋼板7aの上面高さを高精度に調整して固定できることから、アンカーリングを据付けた後の特段のレベル調整は不要となり、作業性が向上することとなる。    If the adjust base 7 has such a configuration, the leg top end steel material 2b is sandwiched and fixed by two or more clamping nuts 7d and 7e screwed into the central portion of the entire screw bolt 7f. From the above, by adjusting the positions of two or more pinching nuts 7d and 7e screwed to the central part of all the screw bolts 7c and 7f, all the screw bolts 7c and 7f are moved up and down, and the installation surface of the anchor ring 10 Since the upper surface height of the anchoring mounting steel plate 7a of the adjusting base 7 can be adjusted with high accuracy and fixed, no special level adjustment is required after the anchoring is installed, and workability is improved. .

また、脚補強用斜材6は、十分な強度及び剛性を有している鋼材であり、図1及び図3に示すように、隣り合った脚2の脚主材2aの相互間の上下に筋違いのごとく角度をつけて1本以上を取付ける構成とすることにより、支持架台1の全体の強度が増して、アンカーリング10の据付後における支持架台1の安定性を向上することができる。    Further, the leg reinforcing diagonal member 6 is a steel material having sufficient strength and rigidity, and as shown in FIG. 1 and FIG. 3, the leg reinforcing material 6 is vertically disposed between the leg main members 2 a of the adjacent legs 2. By adopting a configuration in which one or more are attached at an angle as if different from each other, the overall strength of the support frame 1 is increased, and the stability of the support frame 1 after the anchor ring 10 is installed can be improved.

また、アンカーリング10の据付完了後に、アンカーリング7の内側及び外側を取り巻くように鉄筋が配置されるが、本開発による支持架台1は、T字型に支持架台1の中央部に突き出ている脚固定用鋼材5a・5b以外の部材の殆どは、アンカーリング10の最下部に接合されている同心円型の鋼板の下に隠れる状態となっており、アンカーリング7の内側及び外側での鉄筋の配筋作業には支障なく、作業性は向上する。    Further, after the installation of the anchor ring 10 is completed, the reinforcing bars are arranged so as to surround the inside and the outside of the anchor ring 7, but the support frame 1 according to the present development protrudes in the center of the support frame 1 in a T shape. Most of the members other than the leg fixing steel materials 5a and 5b are hidden under the concentric steel plate joined to the lowermost part of the anchor ring 10, and the reinforcing bars on the inner side and the outer side of the anchor ring 7 are hidden. There is no hindrance to the work of bar arrangement and workability is improved.

本開発による支持架台を採用することにより、支持架台の骨格の形成の組立作業にボルト組立方式を採用したことから、現地作業の単純化及び容易さにより作業性が向上すると共に、基礎ベース鉄筋などの配筋作業については障害物の少ない状態での作業となり作業性が向上する。さらにはアンカーリング据付け後のレベル調整が不要となるなど、風力発電設備以外におけるモノポール構造のタワー設置工事のアンカーリング据付作業においても応用できるものであり、適用の範囲は広い。    By adopting the support frame by this development, the bolt assembly method was adopted for the assembly work of the frame of the support frame, so the workability was improved due to the simplification and ease of on-site work, as well as the foundation base rebar etc. As for the bar arrangement work, the work is performed with few obstacles and the workability is improved. Furthermore, it can be applied to anchor ring installation work of monopole tower installation work other than wind power generation equipment, such as the need for level adjustment after installation of the anchor ring, and the range of application is wide.

1 支持架台
2 脚
2a 脚主材
2b 脚天端鋼材
2c 脚ベース鋼材
3、3a、3b 脚連結用部材
4 ベース連結・固定用部材
5、5a、4b 脚固定用部材
6 脚補強用斜材
7 アジャストベース
7a アンカーリング据付用鋼板
7b 溶接固定用ナット
7c、7f 全ネジボルト
7d、7e 挟着用ナット
8 アンカーボルト
9 組立用ボルト及びナット
10 アンカーリング
11 基礎ベース鉄筋
12 基礎均しコンクリート
13 基礎砕石
14 基礎コンクリート躯体
15、17 基礎杭
16、18 基礎杭立上り鉄筋
19 風車タワー基礎
20 風車タワー
DESCRIPTION OF SYMBOLS 1 Support frame 2 Leg 2a Leg main material 2b Leg top end steel material 2c Leg base steel material 3, 3a, 3b Leg connection member 4 Base connection and fixing member 5, 5a, 4b Leg fixing member 6 Leg reinforcement diagonal material 7 Adjust base 7a Steel plate for anchor ring installation 7b Nuts for fixing welding 7c, 7f Full screw bolts 7d, 7e Nut nuts 8 Anchor bolts 9 Assembly bolts and nuts 10 Anchor ring 11 Base base rebar 12 Foundation leveling concrete 13 Foundation crushed stone 14 Foundation Concrete frame 15, 17 Foundation pile 16, 18 Foundation pile rising reinforcement 19 Wind turbine tower foundation 20 Wind turbine tower

Claims (5)

少なくとも6本の脚と、該脚の脚主材の上方部を少なくとも1組の組立用ボルト・ナットで連結して固定する脚連結用部材と、該脚のぐらつきを防止するために該脚の該脚主材の3本を1組としてT字型に配置して該脚主材の上方部に取付けてある該脚連結用部材の一部に少なくとも1組の組立用ボルト・ナットで固定する脚固定用部材と、該脚の下部のずれを防止するために該脚の該脚主材の最下部に溶接で取付けてある脚ベース鋼材を連結して溶接などで固定するベース連結・固定用部材と、該支持架台の全体を補強するために、隣り合った該脚の該脚主材の相互間の上下に筋違いのごとく角度をつけて溶接などで取付ける少なくとも1本の脚補強用斜材とを備えたモノポール式構造である風車タワーのアンカーリング据付用の支持架台。  At least six legs, a leg connecting member for connecting and fixing the upper portion of the leg main material of the leg with at least one set of assembly bolts and nuts, and for preventing the legs from wobbling. Three of the leg main members are arranged in a T-shape as a set, and are fixed to a part of the leg connecting member attached to the upper portion of the leg main member with at least one set of assembly bolts and nuts. For base connection / fixing by connecting a leg base steel material, which is attached to the lowermost part of the leg main material of the leg by welding, to fix the leg fixing member and welding, etc. In order to reinforce the member and the entire support frame, at least one leg reinforcing diagonal member that is attached by welding or the like at an angle in the vertical direction between the leg main members of the adjacent legs that are staggered. Support frame for anchor ring installation of a windmill tower having a monopole structure with アンカーリングを乗せる面の高さを調整することができるアジャストベースを取付けるために少なくとも1つの貫通孔を穿設した前記脚の前記脚主材の最上部に溶接などで取付けてある脚天端鋼材と、該脚を基礎均しコンクリートに固定するためのアンカーボルトを取付けることのできる少なくとも4つの貫通孔を穿設した該脚の該脚主材の最下部に溶接などで取付けてある前記脚ベース鋼材とで構成したことを特徴とする該脚を備えた請求項1に記載の支持架台。  A leg top end steel member attached by welding or the like to the uppermost part of the leg main member of the leg in which at least one through-hole is drilled to attach an adjustment base capable of adjusting the height of the surface on which the anchor ring is placed The leg base attached by welding or the like to the lowermost part of the leg main material of the leg in which at least four through holes to which the anchor bolt for fixing the leg to the foundation leveling concrete can be attached are drilled The support pedestal according to claim 1, wherein the support gantry includes the legs. 前記アンカーリングを乗せる面となるアンカーリング据付用鋼板と、該アンカーリング据付用鋼板の上側面の裏面である下側面の中心部分に、少なくとも1個の溶接固定用ナットを全ネジボルトの上側先端部分に螺合させた該全ネジボルトの先端を鉛直に溶接し、該全ネジボルトの中央部分に螺合させた少なくとも2個の挟着用ナットを取付けた該全ネジボルトで構成した前記アジャストベースであり、前記支持架台には少なくとも3個の該アジャストベースを有していることを特徴とする請求項2に記載の支持架台。At least one weld fixing nut on the upper end portion of all screw bolts at the center portion of the anchor ring installation steel plate to be a surface on which the anchor ring is placed and the lower surface of the upper side surface of the anchor ring installation steel plate The adjustment base comprising the all screw bolts to which the ends of all the screw bolts screwed to are vertically welded and at least two pinching nuts screwed to the central part of the all screw bolts are attached, The support frame according to claim 2 , wherein the support frame includes at least three adjustment bases. 前記脚の前記脚主材の最上部に取付けた前記脚天端鋼材に穿設した少なくとも1つの貫通孔に対して、前記アジャストベースの前記全ネジボルトを挿通し、該全ネジボルトの中央部分に螺合してある少なくとも2個の前記挟着用ナットで該脚天端鋼材を挟み込んで、該脚天端鋼材に該アジャストベースを挟着して2個の該挟着用ナットの螺合により固定したことを特徴とする請求項3に記載の支持架台。The entire screw bolt of the adjustment base is inserted into at least one through hole formed in the top of the leg top end steel member attached to the uppermost portion of the leg main material of the leg, and screwed into the central portion of the entire screw bolt. The leg top end steel material is sandwiched by at least two of the clamping nuts, and the adjustment base is sandwiched between the leg top end steel materials and fixed by screwing the two clamping nuts. The support frame according to claim 3 . 少なくとも1個の溶接固定用ナットを全ネジボルトの上側先端部分に螺合させた全ネジボルトを用意し、アンカーリングを乗せる面となるアンカーリング据付用鋼板と、該アンカーリング据付用鋼板の上側面の裏面である下側面の中心部分に、前記全ネジボルトの先端を鉛直に溶接する工程と、
該全ネジボルトの中央部分に螺合させた少なくとも2個の挟着用ナットを取付けて、アジャストベースを前記全ネジボルトで構成する工程と、
少なくとも3個の該アジャストベースを有する支持架台の脚の位置関係について、基礎均しコンクリートの表面に芯出し作業を行った後に、一時的に前記脚と脚連結用部材及び脚固定用部材を組立用ボルト・ナットで組立てる工程と、
前記脚を前記脚の脚主材の最下部に取付けた脚ベース鋼材のアンカーボルトに穿設した少なくとも4つの貫通孔に前記アンカーボルトを取付けることにより前記基礎均しコンクリートに固定する工程と、
前記脚連結用部材及び前記脚固定用部材を前記脚主材から取り外してから、基礎ベース鉄筋の配筋作業を行い、該基礎ベース鉄筋の配筋作業が施工完了後に再び前記脚連結用部材及び前記脚固定用部材を前記組立用ボルト・ナットで組み立てる工程と、
脚補強用斜材を前記脚主材に取付ける工程と、
前記全ネジボルトを前記脚主材の最上部に取付けた脚天端鋼材に穿設した1つの貫通孔に挿通して、前記少なくとも2個の挟着用ナットにより前記脚天端鋼材を挟み込んで固定する工程と、
前記少なくとも2個の挟着用ナットの位置を調整することにより前記全ネジボルトを上下に移動させて、前記アンカーリング据付用鋼板の上面高さを調整して固定する工程と
を含むことを特徴とする風車タワーのアンカーリング据付用の支持架台の製造方法。
Prepare an all-screw bolt in which at least one weld fixing nut is screwed onto the upper end portion of all the screw bolts, and an anchoring-mounting steel plate to be a surface on which the anchor ring is placed; A step of vertically welding the ends of all the screw bolts to the center portion of the lower surface which is the back surface;
Attaching at least two pinching nuts screwed to a central portion of the all screw bolts, and configuring the adjustment base with the all screw bolts;
Regarding the positional relationship of the legs of the support frame having at least three adjustment bases, after the centering work is performed on the surface of the foundation leveling concrete, the legs, the leg connecting members and the leg fixing members are temporarily assembled. Assembling with bolts and nuts for
Fixing the leg to the foundation leveling concrete by attaching the anchor bolt to at least four through holes drilled in an anchor bolt of a leg base steel material attached to the lowermost part of the leg main material of the leg;
After the leg connecting member and the leg fixing member are removed from the leg main material, the base base rebar is laid, and the base base rebar is laid again after the construction is completed. Assembling the leg fixing member with the assembly bolt and nut;
Attaching a leg reinforcing diagonal member to the main leg member;
The all screw bolts are inserted into one through hole formed in the leg top end steel material attached to the top of the leg main material, and the leg top end steel material is sandwiched and fixed by the at least two clamping nuts. Process,
Adjusting the position of the at least two clamping nuts to move the entire screw bolt up and down to adjust and fix the upper surface height of the steel plate for anchoring installation. A method of manufacturing a support frame for anchor ring installation of a windmill tower.
JP2015101382A 2015-04-23 2015-04-23 Support frame for anchor ring installation of windmill tower and manufacturing method thereof Expired - Fee Related JP6127325B2 (en)

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