JP2004143919A - Supporting structure of pole for lightning rod - Google Patents

Supporting structure of pole for lightning rod Download PDF

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JP2004143919A
JP2004143919A JP2003324780A JP2003324780A JP2004143919A JP 2004143919 A JP2004143919 A JP 2004143919A JP 2003324780 A JP2003324780 A JP 2003324780A JP 2003324780 A JP2003324780 A JP 2003324780A JP 2004143919 A JP2004143919 A JP 2004143919A
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lightning rod
pole
bundle
support structure
lightning
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JP2003324780A
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JP3811691B2 (en
Inventor
Terutaka Ozaki
小崎　照卓
Keiji Ando
安藤　慶治
Takashi Okuya
奥谷　恭士
Hidemasa Koga
古賀　英政
Hideo Shiobara
塩原　秀夫
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Nippon Steel Corp
Yoshimoto Pole Co Ltd
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Nippon Steel Corp
Yoshimoto Pole Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporting structure of a pole for a lightning rod having high wind pressure resistance, requiring less installation space, and manufacturable at low cost. <P>SOLUTION: In this supporting structure of the pole for the lightning rod, bulk materials laterally extending by a specified length from the center of the pole for the lightning rod is fixed to the outer periphery of the pole for the lightning rod in multiple stages at vertically specified intervals. Beam string materials receiving initially introduced tension is installed between the upper end of the pole for the lightning rod, free ends of the bundle materials in multiple stages, and anchors installed in the ground. <P>COPYRIGHT: (C)2004,JPO

Description

　本発明は、避雷針を支持する避雷針用ポールの支持構造に関する。 The present invention relates to a lightning rod support structure for supporting a lightning rod.

　風力発電設備用の風車においては、落雷による事故を回避するために風車とは別個に避雷針を設置するケースが増えている。避雷針は風車の最頂部より高い位置に設置する必要があるため、その高さは５０〜１００ｍに達する。そのような高さの避雷針用ポールを支持する構造としては、図３（ａ）、（ｂ）に示されるように単柱からなる避雷針用ポールの場合は、避雷針用ポールの上部あるいは中途から、３本以上のワイヤーロープ等からなる支線を斜め下方に根開き状に張設して支持する支線支持タイプの支持構造と、図３（ｃ）、（ｄ）に示されるような塔体を形鋼材や鋼管をトラス状に組立てたトラスタイプの支持構造、及び前記トラスタイプ支持構造と前記支線支持タイプの支持構造を組み合わせたものが知られている。
実開平６−３５９１２号公報 2. Description of the Related Art In wind turbines for wind power generation equipment, an increasing number of cases are provided in which a lightning rod is installed separately from a wind turbine in order to avoid an accident due to lightning. Since the lightning rod must be installed at a position higher than the top of the windmill, its height reaches 50 to 100 m. As a structure for supporting a lightning rod having such a height, in the case of a lightning rod having a single pole as shown in FIGS. A branch line supporting type support structure for supporting a branch line composed of three or more wire ropes and the like in a diagonally downwardly open manner, and a tower body as shown in FIGS. 3 (c) and 3 (d). A truss-type support structure in which steel materials and steel pipes are assembled in a truss shape, and a combination of the truss-type support structure and the branch line support type are known.
JP-A-6-35912

　前記の従来技術は、支線支持タイプの支持構造では、支線の端部を支持する地面支点が広くなり、大きな設置面積が必要となるため、狭い場所には建設できないという問題が生じる。
　また、トラスタイプの支持構造は、受風面積が大きくなるため、鋼材を多く必要とし高コストになる。 In the above-mentioned prior art, in a supporting structure of a branch line supporting type, a ground fulcrum supporting an end portion of the branch line becomes wide, and a large installation area is required.
In addition, the truss-type support structure requires a large amount of steel because of a large wind receiving area, and is expensive.

　本発明は、前記の従来技術の問題点を解消する耐風圧性が高く、設置面積の少ない、低コストの避雷針用ポールの支持構造を提供することを目的とする。 An object of the present invention is to provide a low-cost lightning rod support structure with high wind pressure resistance, a small installation area, and a low cost, which solves the above-mentioned problems of the prior art.

　前記の課題を解決するために本発明は次のように構成される。
　本第１発明は、避雷針用ポールの支持構造において、前記避雷針用ポールを中心として横方向に水平に適宜な長さ延出する束材を避雷針用ポールの外周に固定し、前記束材を前記避雷針用ポールの上下方向に所定間隔をおいて複数段設置し、前記避雷針用ポールの上端、複数段の束材の自由端部、地面に設けたアンカーとの間に張弦材を初期導入張力を付与して設置したことを特徴とする。 In order to solve the above-mentioned problem, the present invention is configured as follows.
According to the first invention, in the support structure of the lightning rod, the bundling material extending a suitable length horizontally in the horizontal direction around the lightning rod is fixed to the outer periphery of the lightning rod, and the bundling material is fixed. A plurality of stages are installed at predetermined intervals in the vertical direction of the lightning rod, and an initial tension is applied to the string member between the upper end of the lightning rod, the free end of the bundle of multistages, and the anchor provided on the ground. It is characterized by being installed.

　本第２発明は、本第１発明の避雷針用ポールの支持構造において、前記避雷針用ポールを中心として横方向に水平に適宜な長さ延出する束材を少なくとも３方向に放射状に延出することを特徴とする。 According to a second aspect of the present invention, in the support structure for a lightning rod pole of the first invention, a bundle material extending horizontally and an appropriate length horizontally around the lightning rod pole is radially extended in at least three directions. It is characterized by the following.

　本第３発明は、本第１又は第２発明の避雷針用ポールの支持構造において、前記避雷針用ポールの上下方向に複数段設置される束材間の各セクションに設置される張弦材の初期導入張力が上方から下方へ行くに従い大きくなるように制御されていることを特徴とする。 According to a third aspect of the present invention, in the support structure for a lightning rod pole of the first or second invention, an initial introduction tension of a string member installed in each section between bundles arranged in a plurality of stages in a vertical direction of the lightning rod. Is controlled to increase as going from above to below.

　本第４発明は、本第１〜第３発明のいずれかの避雷針用ポールの支持構造において、前記避雷針用ポールの上部に、少なくとも１つ以上の制振装置が設けられて、共振を抑制するようにしたことを特徴とする。 According to a fourth aspect of the present invention, in the support structure for a lightning rod according to any one of the first to third aspects, at least one or more damping devices are provided above the lightning rod, to suppress resonance. It is characterized by doing so.

　本発明の構成である、地面に設置したアンカーと避雷針用ポールに固定した束材間に支線としての張弦材が初期導入張力を付与して設置されるので、束材の上方向の変形が抑制され、束材の上方向の変形を抑制することで、避雷針用ポールの接合部に風による避雷針用ポールの変形に抵抗する曲げモーメントを生じさせ、その結果として、避雷針用ポールが風を受けた時の変形を抑制する拘束効果が発揮でき、高い耐風性を有するという効果を奏する。
　また、支線としての張弦材は束材の自由端部と地面に設置したアンカーとの間にほぼ垂直に設置されるため、従来技術の支線の自重によるたわみを防止でき、支線の根開きを小さくできるので設置面積を少なくすることができる。
　避雷針用ポールに束材を固定し、束材の端部と地面に設置したアンカーとの間に張弦材を設置するだけの構成なので、低コストで構築が可能となる。
避雷針用ポールの上下方向に複数段設置される束材間の各セクションに設置される張弦材の初期導入張力が上方から下方に行くに従い大きくなるように制御されているので、避雷針用ポールの変形抑制効果が増大し、最下段の束材と地面に設置されたアンカーとの間に設置される張弦材に付与される初期導入張力も過大になることがなく、アンカーの強度を大きなものとする必要がないという効果を奏する。
　また、前記避雷針用ポールの上部に、少なくとも１つ以上の制振装置が設けられて、共振を抑制するようにしたので、避雷針用ポールの高さが高くなっても、避雷針用ポールの共振時の振幅を著しく低減することができるので、ポール頂部の変形を小さく抑制することができる。
According to the constitution of the present invention, since the stringing material as a branch line is provided with the initial introduction tension applied between the anchor fixed on the ground and the bundle fixed to the lightning rod, the upward deformation of the bundle is suppressed. By suppressing the upward deformation of the bundle, a bending moment is generated at the junction of the lightning rod, which resists the deformation of the lightning rod due to the wind. As a result, when the lightning rod is exposed to wind Can exert a restraining effect of suppressing the deformation of the glass, and has an effect of having high wind resistance.
In addition, since the string material as a branch line is installed almost vertically between the free end of the bundle and the anchor installed on the ground, it is possible to prevent bending of the conventional branch line due to its own weight, and to reduce the root opening of the branch line. Therefore, the installation area can be reduced.
Since the structure is such that the bundle is fixed to the lightning rod and the stringer is simply installed between the end of the bundle and the anchor installed on the ground, construction is possible at low cost.
Straining of the lightning rod is controlled because the initial tension of the stringing material installed in each section between the bundles of the lightning rod in the vertical direction is controlled to increase from the top to the bottom. It is necessary to increase the strength of the anchor without increasing the initial introduction tension applied to the string material installed between the lowermost bundle and the anchor installed on the ground without increasing the effect. There is an effect that there is no.
In addition, at least one or more damping devices are provided above the lightning rod pole to suppress resonance. Therefore, even if the height of the lightning rod increases, the resonance of the lightning rod does not occur. Can be significantly reduced, so that the deformation of the pole top can be suppressed to a small value.

　本発明の実施形態を図により説明する。
　図１に示されるように、避雷針を支持する避雷針用ポール１は、高さが５０〜１００ｍに達するため、複数の鋼管等を接続して構成される。複数の鋼管等の接合部の近傍に、鋼管を中心として横方向に水平に適宜な長さ延出する束材２がその端部を鋼管の外周に固定して設置される。図１に示されるものは、等間隔で４本の束材２が固定されている。束材２は、避雷針用ポール１を構成する鋼管等の接合部の近傍に固定されるので、複数段の束材２が避雷針用ポール１の上下方向にほぼ等間隔で設置されることになる。束材２の水平方向の延出長さは、避雷針用ポール１の上方向の数段の束材２は若干短くされ、避雷針用ポール１の下部の束材２の水平方向の延出長さはそれより長く、避雷針用ポール１の下部の複数段の束材２の水平方向の延出長さをほぼ同一とする。地面に設置されるアンカーの設置位置は、最下段の束材２の自由端部のほぼ真下とされる。そのため、避雷針用ポール１の上端、束材の自由端部、地面に設置したアンカーとの間に設置されるワイヤーロープ等の張弦材３は、根開きの小さい状態で設置される。 An embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the lightning rod 1 supporting the lightning rod has a height of 50 to 100 m, and is configured by connecting a plurality of steel pipes and the like. A bundle 2 extending horizontally and horizontally about the steel pipe and extending an appropriate length is fixed and installed near the joints of the steel pipes with the ends fixed to the outer periphery of the steel pipe. In FIG. 1, four bundles 2 are fixed at equal intervals. Since the bundle 2 is fixed in the vicinity of a joint portion of a steel pipe or the like constituting the lightning rod 1, a plurality of bundles 2 are installed at substantially equal intervals in the vertical direction of the lightning rod 1. . The horizontal extension length of the bundle 2 in the horizontal direction is such that the bundle 2 in several stages above the lightning rod 1 is slightly shortened, and the horizontal extension of the bundle 2 below the lightning rod 1 Is longer than that, and the horizontal extension lengths of the bundles 2 in a plurality of stages below the lightning rod 1 are made substantially the same. The installation position of the anchor installed on the ground is almost directly below the free end of the lowermost bundle 2. For this reason, the string material 3 such as a wire rope installed between the upper end of the lightning rod 1, the free end of the bundle, and the anchor installed on the ground is installed in a state where the root opening is small.

　避雷針用ポール１の上端と最上段の束材２との間、最上段の束材２と上から２段目の束材との間、・・・、下から２段目の束材２と最下段の束材２との各セクションに設置される張弦材３には、上方から下方に行くに従い大きくなる初期導入張力が付加される。複数の鋼管を接続して避雷針用ポール１を組立てる前に、各セクションごとに束材２と束材２との間の張弦材３に所定の初期導入張力を付与しながら複数の鋼管を接続して避雷針用ポール１を組立て、避雷針用ポール１を地面の基礎上に立設し、最下段の束材２と地面に設置したアンカーとの間の張弦材３に所定の初期導入張力を付加して避雷針用ポール１の設置が完了する。このような施工手順とすることにより各セクションに付与される初期導入張力の制御が容易となる。 Between the upper end of the lightning rod 1 and the uppermost bundle 2, between the uppermost bundle 2 and the second uppermost bundle,..., The second lowermost bundle 2 An initial introduction tension that increases from the upper side to the lower side is applied to the string member 3 installed in each section with the lowermost bundle member 2. Before connecting the plurality of steel pipes to assemble the lightning rod 1, the plurality of steel pipes are connected while applying a predetermined initial introduction tension to the string member 3 between the bundles 2 for each section. The lightning rod 1 is assembled, the lightning pole 1 is erected on the ground, and a predetermined initial introduction tension is applied to the string 3 between the lowermost bundle 2 and the anchor installed on the ground. The installation of the pole 1 is completed. By adopting such a construction procedure, it is easy to control the initial introduction tension applied to each section.

　本発明の避雷針用ポールの支持構造は、図２（ｂ）に示されるように、避雷針用ポール１の複数段の束材間の各セクションに上方から下方に行くに従い大きくなる初期導入張力を付与されて張弦材３が設置されているので、避雷針用ポール１に風が当たると、風上側の束材２の自由端部は上方向に変形しようとするが、束材２間に設置された張弦材３が束材２の上方向の変形を抑制し、避雷針用ポール１を構成する鋼管の接合部に避雷針用ポール１の変形に抵抗する矢印のような曲げモーメントが発生し、風による避雷針用ポール１の変形を小さくすることができる。 As shown in FIG. 2 (b), the support structure of the lightning rod pole of the present invention imparts an initial introduction tension that increases from the upper part to the lower part of each section between the bundles of the plurality of layers of the lightning rod. When the wind hits the lightning rod 1, the free end of the bundle 2 on the windward side tends to be deformed upward when the wind hits the lightning rod 1, but the string is installed between the bundles 2. 3 suppresses the upward deformation of the bundle 2 and generates a bending moment as shown by an arrow at the joint of the steel pipes constituting the lightning rod 1 so as to resist the deformation of the lightning rod 1. 1 can be reduced.

　ところで、通常、高さの高い避雷針ポールの風による横方向の変形、特に頂部についての横方向の変形は、図４に点線（Ａ）で示すように、ポールの高さの１／１００以下に抑え込むようにするのを設計の目安とされているが、避雷針用ポール１の高さが８０ｍを越えると、振動時の共振の影響により、前記の避雷針用ポール１の頂部の変形が大きくなる。例えば、図４に示すように、張弦材３がない場合は×印の折れ線（イ）のようになり、張弦材があり共振を生じる場合は黒丸印の折れ線（ロ）のようになり、避雷針用ポール１の上部に、制振装置があり共振を生じない場合は黒三角印の線図（ハ）のようになる。 By the way, normally, the deformation of the high lightning rod in the horizontal direction due to the wind, particularly the horizontal deformation of the top is less than 1/100 of the height of the pole as shown by the dotted line (A) in FIG. Although it is considered as a design guide to suppress the height, when the height of the lightning rod 1 exceeds 80 m, the top of the lightning rod 1 is greatly deformed due to the influence of resonance during vibration. For example, as shown in FIG. 4, when there is no string member 3, the line is indicated by a broken line (a) indicated by X, and when there is a string member and resonance occurs, the line is indicated by a broken line (b) indicated by a black circle. In the case where a vibration damping device is provided at the upper part of 1 and no resonance is generated, a graph (c) indicated by a black triangle mark is obtained.

　図４からわかるように、制振装置を避雷針用ポール１の上部に設けると、避雷針用ポール１が風により振動しても、ポール頂部の変形を著しく小さく抑制することができるため、共振により避雷針用ポール１が損傷するのを防止できる共に、避雷針用ポール１の耐久性を向上させることができる。制振装置を避雷針用ポール１の上部に１つ、または上下または左右方向に複数設ける形態でもよい。 As can be seen from FIG. 4, if the damping device is provided above the lightning rod 1, even if the lightning rod 1 vibrates due to the wind, the deformation of the pole top can be suppressed to a remarkably small amount. The damage to the pole 1 can be prevented, and the durability of the lightning rod 1 can be improved. One or a plurality of damping devices may be provided above the lightning rod 1 in the vertical or horizontal direction.

　避雷針用ポール１の上部に、少なくとも１つ以上の制振装置を取り付ける場合、図５（ａ）に示すように、避雷針用ポール１の上端部に制振装置４を設ける外付け式のようにしてもよく、図５（ｂ）に示すように、避雷針用ポール１を構成する鋼管内部に制振装置４を設ける内蔵式のようにすることもできる。 When at least one or more damping devices are attached to the upper part of the lightning rod 1, as shown in FIG. 5A, an external damping device 4 is provided at the upper end of the lightning rod 1. Alternatively, as shown in FIG. 5 (b), a built-in type in which the vibration damping device 4 is provided inside the steel pipe constituting the lightning rod pole 1 may be used.

　避雷針用ポール１に取り付ける制振装置４本体の構成の一形態としては、例えば、図６に示すように、内部が密閉された収納容器５内に、粘性減衰液６と、第１，第２の圧縮コイルスプリング７，８と、この第１，第２の圧縮コイルスプリング７，８の中間に配設されて係合され、前記粘性減衰液６内を移動する重り９とからなる構成としてもよい。前記の第１，第２の圧縮コイルスプリング７，８の基端側は、それぞれ底板１１上面に固定される環状支持部または蓋材となっている頂板１０下面に固定されている環状支持部内に位置して位置決め配置されている。前記重り９は中央部に環状の張り出し鍔部を有すると共にこれに一体に上下に截頭円錐状体を備えて嵌合設置が容易とされている。なお、前記頂板１０は収納容器５の本体上部フランジにボルト・ナット１６により着脱自在に固定されて収納容器５内を密閉している。 As one form of the configuration of the vibration damping device 4 attached to the lightning rod 1, for example, as shown in FIG. 6, a viscous damping liquid 6, , And a weight 9 which is disposed in the middle of the first and second compression coil springs 7 and 8 and is engaged therewith and moves in the viscous damping liquid 6. Good. The base end sides of the first and second compression coil springs 7 and 8 are respectively provided in an annular support portion fixed to the upper surface of the bottom plate 11 or an annular support portion fixed to the lower surface of the top plate 10 serving as a cover material. Positioned and positioned. The weight 9 has a ring-shaped overhanging flange at the center and a frusto-conical body integrally formed with the flange so that the fitting installation is easy. The top plate 10 is detachably fixed to the upper flange of the main body of the storage container 5 with bolts and nuts 16 to seal the inside of the storage container 5.

　図５（ａ）および図６では、避雷針用ポール１の上端部に、制振装置支持用の鋼製頂板１５を固定し、収納容器５の底板１１を、前記頂板１５に複数のボルト・ナット１２により着脱可能に取り付けている形態が示されている。なお、制振装置４に雷撃を受けた時に、制振装置４内の重り９や粘性減衰液６に影響がないようにするために、収納容器５の筒部を鋼管とし、その上下の頂板１０ならびに底板１１を鋼板とするとよい。 In FIGS. 5A and 6, a steel top plate 15 for supporting the vibration damping device is fixed to the upper end of the lightning rod 1, and the bottom plate 11 of the storage container 5 is attached to the top plate 15 by a plurality of bolts and nuts. Reference numeral 12 indicates a detachable mounting mode. In order to prevent the weight 9 and the viscous damping liquid 6 in the vibration damping device 4 from being affected when the vibration damping device 4 receives a lightning strike, the cylindrical portion of the storage container 5 is made of a steel pipe, and the top plate on the upper and lower sides thereof is formed. It is good to make 10 and the bottom plate 11 steel plates.

　図５（ｂ）および図７では、収納容器５の外周面に雌ねじ孔を有する被支持部１３が周方向に等角度間隔で設けられ、避雷針用ポール１を構成する上部の鋼管の外周面にボルト支持用孔が周方向に等角度間隔で設けられ、前記ボルト支持用孔に挿通されると共に前記被支持部１３にねじ込まれるボルト１４により、制振装置４を所定の位置に設置する形態が示されている。 In FIGS. 5B and 7, supported portions 13 having female screw holes are provided at equal angular intervals in the circumferential direction on the outer peripheral surface of the storage container 5, and are provided on the outer peripheral surface of the upper steel pipe constituting the lightning rod 1. Bolt supporting holes are provided at equal angular intervals in the circumferential direction, and the vibration damping device 4 is installed at a predetermined position by a bolt 14 inserted into the bolt supporting hole and screwed into the supported portion 13. It is shown.

　前記のような制振装置４では、制振装置４の第１，第２圧縮コイルスプリング７，８および重り９の固有振動数は、避雷針用ポール１の固有振動数と一致させるようにするとよい。 In the vibration damping device 4 as described above, the natural frequencies of the first and second compression coil springs 7 and 8 and the weight 9 of the vibration damping device 4 may be made to match the natural frequency of the lightning rod pole 1. .

　このようにすると、ポール１が風による共振により、固有振動数で揺れだすと、制振装置の中の重り９が逆位相で揺れ、ポール１の動きを抑制する力を生み出し、ポール１の振動を抑制することができ、例えば、制振装置がない場合に比べて共振時の振幅を１／１０程度に抑制することもできる。なお、減衰係数比は、粘性減衰液６の粘度，量および重り９の質量により定まるので、これらを変化させることにより、避雷針用ポール１の受ける振動に対して、所望の減衰比が得られるように設定すればよい。なお、図示の制振装置４を横向き配置にする形態でもよく（ただし、蓋は上部側になるようにする）、また他の公知の制振装置を使用してもよい。 In this way, when the pole 1 starts to oscillate at the natural frequency due to the wind resonance, the weight 9 in the vibration damper oscillates in the opposite phase to generate a force that suppresses the movement of the pole 1 and the vibration of the pole 1 For example, the amplitude at the time of resonance can be suppressed to about 1/10 as compared with the case where there is no vibration damping device. Since the damping coefficient ratio is determined by the viscosity and amount of the viscous damping liquid 6 and the mass of the weight 9, by changing these, a desired damping ratio can be obtained with respect to the vibration received by the lightning rod pole 1. Should be set to. Note that the illustrated vibration damping device 4 may be arranged in a horizontal orientation (provided that the lid is on the upper side), or another known vibration damping device may be used.

　（作用）
　前記のように本発明においては、地面に設置したアンカーと束材間に支線としての張弦材を初期導入張力を付与して設置されているので、束材の上方向の変形が抑制され、束材の上方向の変形を抑制することで、避雷針用ポールの接合部に風による避雷針用ポールの変形に抵抗する曲げモーメントを生じさせ、その結果として、避雷針用ポールが風を受けた時の変形を抑制する拘束効果が発揮でき、高い耐風性を有する。
　また、支線としての張弦材は束材の自由端部と地面に設置したアンカーとの間にほぼ垂直に設置されるため、従来技術の支線の自重によるたわみを防止でき、支線の根開きを小さくできるので設置面積を少なくすることができる。
　避雷針用ポールに束材を固定し、束材の端部と地面に設置したアンカーとの間に張弦材を設置するだけの構成なので、低コストの避雷針用ポールの支持構造となる。
避雷針用ポールの上下方向に複数段設置される束材間の各セクションに設置される張弦材の初期導入張力が上方から下方に行くに従い大きくなるように制御されているので、避雷針用ポールの変形抑制効果が増大し、最下段の束材と地面に設置されたアンカーとの間に設置される張弦材に付与される初期導入張力も過大になることがない。
　また、前記避雷針用ポールの上部に、少なくとも１つ以上の制振装置が設けられて、共振を抑制するようにしたので、避雷針用ポールの高さが高くなっても、避雷針用ポールの共振時の振幅を著しく低減することができるので、ポール頂部の変形を小さく抑制することができる。 (Action)
As described above, in the present invention, since the stringing material as a branch line is provided with the initial introduction tension applied between the anchor and the bundle installed on the ground, the upward deformation of the bundle is suppressed, and the bundle is restrained. By suppressing the upward deformation of the lightning rod, a bending moment is generated at the joint of the lightning rod, which resists the deformation of the lightning rod due to the wind. A restraining effect can be exhibited, and high wind resistance is provided.
In addition, since the string material as a branch line is installed almost vertically between the free end of the bundle and the anchor installed on the ground, it is possible to prevent bending of the conventional branch line due to its own weight, and to reduce the root opening of the branch line. Therefore, the installation area can be reduced.
Since the structure is such that the bundle is fixed to the lightning rod and the stringing member is simply installed between the end of the bundle and the anchor installed on the ground, the structure is a low-cost lightning rod support structure.
Straining of the lightning rod is controlled because the initial tension of the stringing material installed in each section between the bundles of the lightning rod in the vertical direction is controlled to increase from the top to the bottom. The effect is increased, and the initial introduction tension applied to the string member installed between the lowermost bundle member and the anchor installed on the ground does not become excessive.
In addition, at least one or more damping devices are provided above the lightning rod pole to suppress resonance. Therefore, even if the height of the lightning rod increases, the resonance of the lightning rod does not occur. Can be significantly reduced, so that the deformation of the pole top can be suppressed to a small value.

（ａ）（ｂ）本発明の避雷針用ポールの支持構造を示す斜視図及び平面図。(A) (b) The perspective view and top view which show the support structure of the pole for lightning rods of this invention. （ａ）（ｂ）本発明の避雷針用ポールの支持構造の作用を示す図。(A) (b) The figure which shows the effect | action of the support structure of the pole for lightning rods of this invention. 従来の避雷針用ポールの支持構造を示す図。The figure which shows the support structure of the conventional pole for lightning rods. ポールの高さと頂部の変形との関係を示す説明図。Explanatory drawing which shows the relationship between the height of a pole and the deformation | transformation of a top part. （ａ）および（ｂ）は制振装置を付属させた避雷針用ポールを示す斜視図。(A) And (b) is a perspective view which shows the pole for lightning rods with which the damping device was attached. 避雷針ポールの上端部に制振装置を取付けた形態を示す縦断正面図。FIG. 3 is a longitudinal sectional front view showing a form in which a vibration damping device is attached to an upper end portion of a lightning rod. 避雷針ポールの内部に制振装置を取付けた形態を示す縦断正面図。FIG. 3 is a vertical sectional front view showing a form in which a vibration damping device is mounted inside a lightning rod.

符号の説明Explanation of reference numerals

１：避雷針用ポール
２：束材
３：張弦材
４：制振装置
５：収納容器
６：粘性減衰液
７：第１圧縮スプリング
８：重り
９：重り
１０：頂板
１１：底板
１２：ボルト・ナット
１３：被支持部
１４：ボルト
１５：頂板
１６：ボルト・ナット 1: Lightning rod 2: Bundle 3: String material 4: Damper 5: Storage container 6: Viscous damping liquid 7: First compression spring 8: Weight 9: Weight 10: Top plate 11: Bottom plate 12: Bolt / nut 13 : Supported part 14: Bolt 15: Top plate 16: Bolt / Nut

Claims (4)

避雷針用ポールの支持構造において、前記避雷針用ポールを中心として横方向に水平に適宜な長さ延出する束材を避雷針用ポールの外周に固定し、前記束材を前記避雷針用ポールの上下方向に所定間隔をおいて複数段設置し、前記避雷針用ポールの上端、複数段の束材の自由端部、地面に設けたアンカーとの間に張弦材を初期導入張力を付与して設置したことを特徴とする避雷針用ポールの支持構造。 In the support structure of the lightning rod, in the support structure of the lightning rod, a bundle that extends horizontally and an appropriate length horizontally around the lightning rod is fixed to the outer periphery of the lightning rod, and the bundle is placed in the vertical direction of the lightning rod. A plurality of stairs are provided at predetermined intervals, and the stringing material is installed with an initial introduction tension applied between the upper end of the lightning rod, the free ends of the plurality of bundles, and the anchor provided on the ground. Characteristic lightning rod support structure. 前記避雷針用ポールを中心として横方向に水平に適宜な長さ延出する束材を少なくとも３方向に放射状に延出することを特徴とする請求項１に記載の避雷針用ポールの支持構造。 The support structure for a lightning rod according to claim 1, wherein the bundle material extending horizontally and horizontally at an appropriate length around the lightning rod is extended in at least three directions. 前記避雷針用ポールの上下方向に複数段設置される束材間の各セクションに設置される張弦材の初期導入張力が上方から下方へ行くに従い大きくなるように制御されていることを特徴とする請求項１又は２に記載の避雷針用ポールの支持構造。 5. The control method according to claim 1, wherein the initial introduction tension of the string member installed in each section between the bundle members arranged in a plurality of stages in the vertical direction of the lightning rod is controlled to increase as going from above to below. 3. A support structure for the lightning rod according to 1 or 2. 前記避雷針用ポールの上部に、少なくとも１つ以上の制振装置が設けられて、共振を抑制するようにしたことを特徴とする請求項１〜３のいずれかに記載の避雷針用ポールの支持構造。 The support structure for a lightning rod pole according to any one of claims 1 to 3, wherein at least one or more vibration suppression devices are provided on the lightning rod pole to suppress resonance. .
JP2003324780A 2002-09-30 2003-09-17 Lightning rod support structure Expired - Fee Related JP3811691B2 (en)

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JP2012127083A (en) * 2010-12-14 2012-07-05 Taisei Corp Towering structure
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CN109038455A (en) * 2018-07-28 2018-12-18 中国电力工程顾问集团西北电力设计院有限公司 A kind of Lightning-Rod Protection Disign In Substations vibration absorber
CN109853977A (en) * 2019-01-02 2019-06-07 华南理工大学 A kind of bracing means and installation method of elongate cylinder
CN114865459A (en) * 2022-04-18 2022-08-05 刘建军 Lightning rod fixed in side direction

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CN102979343A (en) * 2012-11-15 2013-03-20 浙江永达电力实业股份有限公司 Electric pole
CN108775188A (en) * 2018-06-01 2018-11-09 中国航空规划设计研究总院有限公司 A kind of prestressing force communication king-post and its construction method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012127083A (en) * 2010-12-14 2012-07-05 Taisei Corp Towering structure
CN107939610A (en) * 2017-11-09 2018-04-20 华电重工股份有限公司 Pylon rigidity adjuster and the wind-driven generator with the regulating device
CN109038455A (en) * 2018-07-28 2018-12-18 中国电力工程顾问集团西北电力设计院有限公司 A kind of Lightning-Rod Protection Disign In Substations vibration absorber
CN109853977A (en) * 2019-01-02 2019-06-07 华南理工大学 A kind of bracing means and installation method of elongate cylinder
CN114865459A (en) * 2022-04-18 2022-08-05 刘建军 Lightning rod fixed in side direction
CN114865459B (en) * 2022-04-18 2024-03-08 南阳高新区天成电气设备有限公司 Lightning rod fixed in lateral direction

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