JP5844579B2 - Tower structure - Google Patents

Tower structure Download PDF

Info

Publication number
JP5844579B2
JP5844579B2 JP2011191044A JP2011191044A JP5844579B2 JP 5844579 B2 JP5844579 B2 JP 5844579B2 JP 2011191044 A JP2011191044 A JP 2011191044A JP 2011191044 A JP2011191044 A JP 2011191044A JP 5844579 B2 JP5844579 B2 JP 5844579B2
Authority
JP
Japan
Prior art keywords
diameter
column
column member
concrete
members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2011191044A
Other languages
Japanese (ja)
Other versions
JP2013053424A (en
Inventor
克浩 大竹
克浩 大竹
翼 谷
翼 谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP2011191044A priority Critical patent/JP5844579B2/en
Publication of JP2013053424A publication Critical patent/JP2013053424A/en
Application granted granted Critical
Publication of JP5844579B2 publication Critical patent/JP5844579B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Support Of Aerials (AREA)

Description

本発明はアンテナを支持する塔状構造物に関し、例えば、高さ３０ｍ程度で頂部近傍にパラボナアンテナを取付け可能な揺れの小さい搭状構造物に関する。   The present invention relates to a tower-like structure that supports an antenna. For example, the present invention relates to a tower-like structure that has a height of about 30 m and that can be mounted with a parabona antenna near the top and has a small swing.

アンテナを支持する塔状構造物のうち、特にパラボナアンテナ等を支持する塔状構造物は、その振れが少ないことが必要とされる。このため、塔状構造物には高い剛性が要求される。剛性を確保するため、従来では鉄骨トラス構造等の鉄骨造が採用されることが多い（特許文献１）。しかし、鉄骨造とするとコストが高く、工期も長くなりやすい。   Of the tower-like structures that support the antenna, the tower-like structure that supports the parabona antenna or the like is particularly required to have less vibration. For this reason, high rigidity is required for the tower-like structure. Conventionally, a steel structure such as a steel truss structure is often used to ensure rigidity (Patent Document 1). However, the steel structure is expensive and the construction period tends to be long.

特開平９−２９１９６８号公報Japanese Patent Laid-Open No. 9-291968

コストと工期の点で、高強度コンクリートを遠心締固めによって製造したコンクリート（ＰＨＣ）製又はコピタ型プレテンション式高強度プレストレスト鉄筋コンクリート（ＰＲＣ）製の柱部材を上下に連結して塔状構造物を構築する方法が考えられる。この方法であれば、鉄骨造の場合に比べてコストを削減でき、また、工期の短縮化も図り得る。但し、柱部材間の連結部分の剛性が低下し易く、十分な剛性確保が望まれる。   In terms of cost and construction period, a columnar structure is constructed by connecting pillar members made of concrete (PHC) or high-strength prestressed reinforced concrete (PRC) made by centrifugal compaction of high-strength concrete up and down. A method of building is conceivable. If this method is used, the cost can be reduced as compared with the case of a steel structure, and the construction period can be shortened. However, the rigidity of the connecting portion between the column members is likely to decrease, and it is desired to ensure sufficient rigidity.

また、アンテナの設置位置が、例えば、地上から２５ｍ〜３０ｍの位置となることから、地震や風力が振れの要因となる。揺れを小さくするためには、上部ほど塔状構造物を細くかつ軽くすることが有効である。そこで通常は、柱部材を先細りのテーパ状に形成することが考えられる。   Moreover, since the installation position of the antenna is, for example, a position 25 m to 30 m from the ground, an earthquake or wind force causes a shake. In order to reduce the shaking, it is effective to make the tower-like structure thinner and lighter toward the top. Therefore, it is usually considered that the column member is formed in a tapered shape.

しかし、塔状構造物の側面にはフィーダ線、ステップ、アンテナ支持具等の付属物を設置する必要があることから、柱部材の工場製造時に多数のインサートを埋め込んでおくことが好ましい。２分割したリング状部材に予めインサートを取付けてからコンクリートを打設するようにしてインサートを設置する場合、柱部材がテーパ状であるとインサートを埋め込む部位の直径がまちまちになり、インサートを固定するリング状部材の種類が多くなり、柱部材の製造に手間がかかる。また、鋼製バンドにより、付属物を設置する場合には部材の数が多くなりすぎ、見苦しくなる。   However, since it is necessary to install accessories such as feeder wires, steps, and antenna supports on the side surfaces of the tower-like structure, it is preferable to embed a large number of inserts during factory manufacture of the column members. When the insert is installed in such a way that the insert is attached in advance to the ring-shaped member divided into two and then the concrete is placed, if the column member is tapered, the diameter of the part where the insert is embedded varies and the insert is fixed. There are many types of ring-shaped members, and it takes time to manufacture the column members. Moreover, when installing an accessory with a steel band, the number of members increases too much and it becomes unsightly.

本発明の目的は、地震や風力による振れを低減しつつ、連結部分の剛性確保と、多数のインサートを配しても工場製造の容易化が図り得る外観に優れた塔状構造物を提供することにある。 An object of the present invention is to provide a tower-like structure excellent in appearance that can reduce the vibration due to earthquakes and wind power, ensure the rigidity of the connecting portion, and facilitate factory manufacture even if a large number of inserts are arranged. There is.

本発明によれば、複数の柱構成部材を連結した柱体を備え、アンテナを支持する塔状構造物であって、前記複数の柱構成部材が、それぞれ、ＰＨＣ又はＰＲＣ製の柱部材と、隣接する別の前記柱部材を連結するための連結部材と、を備え、前記柱体は、その下側から上側へ向かって段階的に縮径しており、かつ、縮径する各部位は、前記柱部材の途中の部位であり、前記途中の部位を有する前記柱部材は、径が軸方向に同径の下部と、前記下部よりも小径で軸方向に同径の上部と、前記下部と前記上部との間の径変化部と、を有し、かつ該下部と該上部と該径変化部の内径は同径であり、前記連結部材は、前記柱部材の端部を囲む環状部と、前記柱部材の端面に設けられ、かつ前記環状部の径方向外方に突出したフランジ部を有する端板と、を有し、前記径変化部は、前記環状部から離間しており、前記連結部材を介して連結された、上方の前記柱部材の下部と下方の前記柱部材の上部とは、外径が同径であることを特徴とする塔状構造物が提供される。
また、各々の前記柱部材は、円筒状のコンクリート部と、該コンクリート部内に埋設される主筋及びＰＣ鋼線と、を備え、前記途中の部位を有する前記柱部材の主筋は、前記上部の径を基準として配筋され、前記下部における主筋のかぶり厚が前記上部よりも厚くなっており、前記ＰＣ鋼線の端部は、前記連結部材に連結されており、前記柱体の最下部に位置し、基礎中に埋め込まれる部分を有する前記柱部材の内部空間のうち、少なくとも前記基礎に埋め込まれる部分にコンクリートが充填されていることを特徴とする。 According to the present invention, it is a tower-like structure that includes a column body that connects a plurality of column component members and supports an antenna, and each of the plurality of column component members is a column member made of PHC or PRC, A connecting member for connecting another adjacent column member , and the column body is gradually reduced in diameter from the lower side toward the upper side, and each part to be reduced in diameter is The column member is a part in the middle of the pillar member, and the pillar member having the part in the middle includes a lower part having a same diameter in the axial direction, an upper part having a smaller diameter than the lower part and the same diameter in the axial direction, and the lower part. have a, a diameter change section between the upper and the inner diameter of the lower and the upper and該径change portion is the same diameter, the connecting member includes an annular portion surrounding an end portion of said post member An end plate having a flange portion provided on an end surface of the column member and projecting radially outward of the annular portion; The diameter changing portion is spaced apart from the annular portion, and the lower portion of the upper column member and the upper portion of the lower column member connected via the connecting member have the same outer diameter. A tower structure having a diameter is provided.
Each of the column members includes a cylindrical concrete portion, a main reinforcement and a PC steel wire embedded in the concrete portion, and the main reinforcement of the column member having the intermediate portion has a diameter of the upper portion. The cover thickness of the main bars in the lower part is thicker than that of the upper part, and the end of the PC steel wire is connected to the connecting member and is located at the lowest part of the column In addition, in the internal space of the column member having a portion embedded in the foundation, at least a portion embedded in the foundation is filled with concrete.

本発明によれば、地震や風力による振れを低減しつつ、連結部分の剛性確保と、多数のインサートを配しても工場製造の容易化が図り得る外観に優れた塔状構造物を提供することができる。 According to the present invention, there is provided a tower-like structure excellent in appearance that can ensure the rigidity of a connecting portion and facilitate the manufacture of a factory even if a large number of inserts are arranged while reducing shake due to an earthquake or wind power. be able to.

（Ａ）は本発明の一実施形態に係る塔状構造物の概略図、（Ｂ）は該塔状構造物の分解図。(A) is the schematic of the tower-like structure which concerns on one Embodiment of this invention, (B) is an exploded view of this tower-like structure. （Ａ）は図１（Ａ)の線Ｉ−Ｉに沿う断面図、（Ｂ）は連結部材の斜視図。(A) is sectional drawing which follows the line II of FIG. 1 (A), (B) is a perspective view of a connection member. 図１（Ａ)の線ＩＩ−ＩＩに沿う断面図。Sectional drawing which follows the line II-II of FIG. 1 (A).

図１（Ａ）は本発明の一実施形態に係る塔状構造物Ａの概略図、図１（Ｂ）は塔状構造物Ａの柱体１の分解図である。塔状構造物Ａは複数の柱構成部材１０、２０、３０を上下に連結した柱体１を備える。本実施形態では３つの柱構成部材１０、２０、３０を連結して柱体１を構成しているが４以上の柱構成部材を連結して構成してもよく、また、２つの柱構成部材を連結して構成してもよい。   FIG. 1A is a schematic view of a tower-like structure A according to an embodiment of the present invention, and FIG. 1B is an exploded view of a column 1 of the tower-like structure A. The tower-like structure A includes a pillar body 1 in which a plurality of pillar constituent members 10, 20, and 30 are connected vertically. In this embodiment, the three pillar constituent members 10, 20, 30 are connected to constitute the pillar body 1, but four or more pillar constituent members may be connected, and two pillar constituent members may be configured. May be configured.

柱構成部材１０、２０、３０は、柱構成部材１０が最下部に位置し、柱構成部材３０が最上部に位置し、柱構成部材２０が中間部に位置している。柱構成部材３０にはアンテナ取付具３５が固定されており、パラボナアンテナ等のアンテナ（不図示）がアンテナ取付具３５を介して支持される。柱構成部材１０はその下部がコンクリート基礎２に埋め込まれており、コンクリート基礎２は柱体１全体を支持する。本実施形態の場合、柱体１の地上高としては、３０ｍ程度を想定しており、コンクリート基礎２による柱体１の支持モデルは固定モデルである場合を想定している。   The column component members 10, 20, and 30 are such that the column component member 10 is positioned at the bottom, the column component member 30 is positioned at the top, and the column component member 20 is positioned at the middle. An antenna fixture 35 is fixed to the column component 30, and an antenna (not shown) such as a parabona antenna is supported via the antenna fixture 35. The lower part of the column component 10 is embedded in the concrete foundation 2, and the concrete foundation 2 supports the entire column body 1. In this embodiment, the ground height of the column 1 is assumed to be about 30 m, and the support model of the column 1 by the concrete foundation 2 is assumed to be a fixed model.

柱構成部材１０、２０、３０は、それぞれ、ＰＲＣ製で円筒の柱部材１１、２１、３１を基本的な構成要素としている。ＰＲＣは剛性が高いため、それにより柱体１をより細くしながら、振れを少なくすることができる。これは、材料削減に役立つと共に塔状構造物Ａの周辺の景観を損なうことを低減できる。また、柱部材１１、２１、３１を円筒とすることができ、中実の場合よりも軽量化を図れる。なお、本実施形態では柱部材１１、２１、３１をＰＲＣ製としたがＰＨＣ製としてもよい。   The pillar constituent members 10, 20, and 30 are made of PRC and have cylindrical pillar members 11, 21, and 31 as basic constituent elements, respectively. Since the PRC has high rigidity, it is possible to reduce vibration while making the column 1 thinner. This is useful for material reduction and can reduce damage to the surrounding landscape of the tower-like structure A. Moreover, the pillar members 11, 21, and 31 can be made into a cylinder, and weight reduction can be attained compared with the case of a solid. In this embodiment, the column members 11, 21, and 31 are made of PRC, but may be made of PHC.

柱体１はその下側から上側へ向かって段階的に縮径している。具体的には、縮径部位１ａ、１ｂにおいて２段階で縮径している。本実施形態では２段階で縮径した構成としたが３段階以上としてもよい。縮径部位は、それぞれ、柱部材２１、３１の途中の部位となっている。   The column body 1 is gradually reduced in diameter from the lower side to the upper side. Specifically, the diameter is reduced in two stages at the reduced diameter portions 1a and 1b. In this embodiment, the diameter is reduced in two stages, but it may be three or more. The reduced diameter portion is a portion in the middle of the column members 21 and 31, respectively.

柱部材１１は、全体としてその径（外径）が軸方向に同径となっており、柱部材２１の下部２２と外径が同径である。なお、柱部材１１、２１、３１の周面にはフィーダ線等の付属物を設置するためのインサート（不図示）を複数個所において埋め込まれている。   The column member 11 as a whole has the same diameter (outer diameter) in the axial direction, and the outer diameter of the lower portion 22 of the column member 21 is the same. In addition, inserts (not shown) for installing accessories such as feeder wires are embedded in the peripheral surfaces of the pillar members 11, 21, and 31 at a plurality of locations.

柱部材２１は、下部２２と、上部２３と、これらの間の径変化部２４と、を備える。下部２２、上部２３は、それぞれ、その径（外径）が軸方向に同径であるが、上部２３は下部２２よりも小径となっている。径変化部２４は、下部２２と上部２３との径の差を埋める部分をなしており、この径変化部２４は縮径部位１ａを構成している。径変化部２４は、本実施形態の場合、応力集中を避ける点で、急激に径が変化する段差状とせず、徐々に径が変化したテーパ状としている。   The column member 21 includes a lower part 22, an upper part 23, and a diameter changing part 24 between them. The lower portion 22 and the upper portion 23 have the same diameter (outer diameter) in the axial direction, but the upper portion 23 has a smaller diameter than the lower portion 22. The diameter changing portion 24 forms a portion that fills the difference in diameter between the lower portion 22 and the upper portion 23, and the diameter changing portion 24 constitutes a reduced diameter portion 1a. In the case of the present embodiment, the diameter changing portion 24 is not a step shape in which the diameter changes suddenly, but a taper shape in which the diameter gradually changes in order to avoid stress concentration.

柱部材３１は、柱部材２１と同様の構造を有している。すなわち、柱部材３１は、下部３２と、上部３３と、これらの間の径変化部３４と、を備える。下部３２、上部３３は、それぞれ、その径（外径）が軸方向に同径であるが、上部３３は下部３２よりも小径となっている。下部３２は柱部材２１の上部２３と外径が同径である。径変化部３４は、下部３２と上部３３との径の差を埋める部分をなしており、この径変化部３４は縮径部位１ｂを構成している。径変化部３４は、本実施形態の場合、応力集中を回避するため、急激に径が変化する段差状とせず、徐々に径が変化したテーパ状としている。   The column member 31 has the same structure as the column member 21. That is, the column member 31 includes a lower part 32, an upper part 33, and a diameter changing part 34 between them. The lower portion 32 and the upper portion 33 have the same diameter (outer diameter) in the axial direction, but the upper portion 33 has a smaller diameter than the lower portion 32. The lower part 32 has the same outer diameter as the upper part 23 of the column member 21. The diameter changing portion 34 forms a portion that fills the difference in diameter between the lower portion 32 and the upper portion 33, and this diameter changing portion 34 constitutes a reduced diameter portion 1b. In the case of this embodiment, the diameter changing portion 34 is not a stepped shape in which the diameter changes suddenly, but a tapered shape in which the diameter gradually changes in order to avoid stress concentration.

柱部材１１と柱部材２１とは連結部材４０、４０を介して連結されている。図２（Ａ)は図１（Ａ）の線Ｉ−Ｉに沿う断面図、図２（Ｂ)は連結部材４０の斜視図である。   The column member 11 and the column member 21 are connected via connecting members 40 and 40. 2A is a cross-sectional view taken along line II in FIG. 1A, and FIG. 2B is a perspective view of the connecting member 40. FIG.

図２（Ｂ）を参照して連結部材４０は、金属製（例えば鋼製）の部材であって、円筒状の環状部４１と、環状部４１の端面に接続された端板４２と、を備える。端板４２の一部は、環状部４１の径方向外方に突出したフランジ部４２’を構成している。フランジ部４２’にはボルト穴４４が複数設けられている。   Referring to FIG. 2B, the connecting member 40 is a metal (for example, steel) member, and includes a cylindrical annular portion 41 and an end plate 42 connected to the end surface of the annular portion 41. Prepare. A part of the end plate 42 forms a flange portion 42 ′ protruding outward in the radial direction of the annular portion 41. A plurality of bolt holes 44 are provided in the flange portion 42 '.

本実施形態の場合、連結部材４０は、更に、補強リブ４３を備える。補強リブ４３は環状部４１の周囲に複数設けられ、環状部４１とフランジ部４２’とに接続されている。補強リブ４３を設けたことで連結部材４０の強度と剛性の向上を図ることができる。   In the case of this embodiment, the connecting member 40 further includes a reinforcing rib 43. A plurality of reinforcing ribs 43 are provided around the annular portion 41, and are connected to the annular portion 41 and the flange portion 42 '. By providing the reinforcing rib 43, the strength and rigidity of the connecting member 40 can be improved.

図２（Ａ）を参照して、連結部材４０は柱部材２１の下端部と、柱部材１１の上端部とにそれぞれ設けられている。   Referring to FIG. 2A, the connecting members 40 are provided at the lower end portion of the column member 21 and the upper end portion of the column member 11, respectively.

柱部材２１は、内部空間２１ａを有して円筒状のコンクリート部２５と、コンクリート部２５内に埋設されている主筋２７、帯筋２８、ＰＣ鋼線２６と、を備える。ＰＣ鋼線２６の下端は柱部材２１側の連結部材４０の端板４２に連結されている。なお、ＰＣ鋼線２６の上端は柱部材２１の上部に設けられる連結部材５０に連結されている。   The column member 21 includes an internal space 21 a and a cylindrical concrete portion 25, and a main reinforcement 27, a band reinforcement 28, and a PC steel wire 26 embedded in the concrete portion 25. The lower end of the PC steel wire 26 is connected to the end plate 42 of the connecting member 40 on the column member 21 side. The upper end of the PC steel wire 26 is connected to a connecting member 50 provided on the top of the column member 21.

柱部材１１は、内部空間１１ａを有して円筒状のコンクリート部１２と、コンクリート部１２内に埋設されている主筋１４、帯筋１５、ＰＣ鋼線１３と、を備える。ＰＣ鋼線１３の上端は柱部材１１側の連結部材４０の端板４２に連結されている。なお、ＰＣ鋼線１３の下端は柱部材２１の下部に設けられる金属製の端板１６に連結されている。   The column member 11 includes an internal space 11 a and a cylindrical concrete portion 12, and a main reinforcing bar 14, a band 15, and a PC steel wire 13 embedded in the concrete portion 12. The upper end of the PC steel wire 13 is connected to the end plate 42 of the connecting member 40 on the column member 11 side. The lower end of the PC steel wire 13 is connected to a metal end plate 16 provided at the lower part of the column member 21.

各連結部材４０の環状部４１、４１は、それぞれ、柱部材２１の下端部、柱部材１１の上端部を囲んで、各コンクリート部２５、１２を拘束している。これにより、柱部材２１と柱部材１１との連結部位においてコンクリート部２５、１２の強度が高まり、連結強度を高めることができる。   The annular portions 41, 41 of each connecting member 40 surround the lower end portion of the column member 21 and the upper end portion of the column member 11, respectively, and restrain the concrete portions 25, 12. Thereby, the intensity | strength of the concrete parts 25 and 12 increases in the connection part of the column member 21 and the column member 11, and it can raise connection strength.

柱部材２１の主筋２７、帯筋２８及びＰＣ鋼線２６は、相対的に小径の上部２３の外径を基準として配筋されている。このため、柱部材２１の下部２２においては、かぶり厚が厚くなっている。よって、環状部４１の厚みを厚くして更なる強度向上を図る場合に、環状部４１と主筋２７、帯筋２８及びＰＣ鋼線２６が干渉することを回避し易くなっている。なお、環状部４１と端板４２を厚くすることにより、補強リブ４３による補強をせずに強度と剛性を向上させることもできる。   The main reinforcement 27, the band reinforcement 28, and the PC steel wire 26 of the column member 21 are arranged on the basis of the outer diameter of the relatively small diameter upper portion 23. For this reason, in the lower part 22 of the column member 21, the cover thickness is thick. Therefore, when the thickness of the annular portion 41 is increased to further improve the strength, it is easy to avoid the interference between the annular portion 41, the main reinforcement 27, the band reinforcement 28, and the PC steel wire 26. Note that by increasing the thickness of the annular portion 41 and the end plate 42, the strength and rigidity can be improved without reinforcement by the reinforcing rib 43.

連結部材４０、４０を介した、互いに隣接した柱部材２１、１１間の連結は、互いの端板４２のボルト穴４４に不図示のボルトを挿入して不図示のナットで締結することで行う。端板４２、４２間に鉄板を挟むことで、建て入れ調整を行うことができる。   The connection between the column members 21 and 11 adjacent to each other via the connection members 40 and 40 is performed by inserting a bolt (not shown) into the bolt hole 44 of each end plate 42 and fastening with a nut (not shown). . The erection adjustment can be performed by sandwiching the iron plate between the end plates 42 and 42.

連結部材５０の構成は連結部材４０と同様であり、ただ径が異なるだけである。柱部材２１と柱部材３１の連結構造は柱部材２１と柱部材１１との連結構造と同様であり、柱部材２１の上端部、柱部材３１の下端部にそれぞれ連結部材５０、５０を設けて連結する。柱部材３１内の内部構造も柱部材２１と同様である。   The structure of the connection member 50 is the same as that of the connection member 40, and only the diameter is different. The connection structure between the column member 21 and the column member 31 is the same as the connection structure between the column member 21 and the column member 11. The connection members 50 and 50 are provided at the upper end portion of the column member 21 and the lower end portion of the column member 31, respectively. Link. The internal structure in the column member 31 is the same as that of the column member 21.

なお、連結部材４０、５０は柱部材１１、２１、３１と一体的に設けることができる。例えば、柱部材２１を製造する際、主筋２７及び帯筋２８からなる鉄筋籠並びにＰＣ鋼線１３を囲む型枠内に、連結部材４０及び５０も配設し、コンクリートを打設する。そして、遠心力成形することで連結部材４０、５０が一体化されたＰＲＣ柱である柱部材２１を製造することができる。   The connecting members 40 and 50 can be provided integrally with the column members 11, 21, and 31. For example, when the column member 21 is manufactured, the connecting members 40 and 50 are also disposed in the form surrounding the reinforcing bar rods made of the main bars 27 and the band bars 28 and the PC steel wire 13, and the concrete is placed. And the column member 21 which is a PRC pillar with which the connection members 40 and 50 were integrated can be manufactured by carrying out centrifugal force shaping | molding.

次に、図３を参照してコンクリート基礎２による柱体１の支持構造について説明する。図３は図１（Ａ）の線ＩＩ−ＩＩに沿う断面図である。コンクリート基礎２は、コンクリート部２ｂ内に鉄筋２ａが埋設された鉄筋コンクリート構造体である。コンクリート基礎２は敷砂利５及びレベルコンリート４上に施工されている。   Next, the support structure of the column 1 by the concrete foundation 2 will be described with reference to FIG. FIG. 3 is a cross-sectional view taken along line II-II in FIG. The concrete foundation 2 is a reinforced concrete structure in which a reinforcing bar 2a is embedded in a concrete portion 2b. The concrete foundation 2 is constructed on the shingle gravel 5 and the level concrete 4.

その施工手順は以下の通りである。まず、配筋された基礎型枠の柱の建込み位置に、長さ２０ｃｍ程度の脚付ベースプレート３を固定する。この上に柱径より２０ｃｍ程度直径の大きい紙管型枠（不図示）をベースプレート３に固定して底を塞いだ形とし、コンクリートを基礎の半分程度の高さまで打設する（コンクリート２ｂ）。所定のコンクリート強度が発生した後に紙管型枠を脱型する。こうして作成した穴２ｃに柱部材１１を建込み、その基部を楔で固定し、上部を不図示の仮設材により垂直に固定した上で、穴２ｃの隙間にモルタル２ｄを充填する。モルタル２ｄの強度が所定強度に達した後、楔を取り除いてから残りの基礎コンクリート２ｅを打設して柱部材１１を固定する。根入れ深さは柱部材１１の直径の２倍程度とする。   The construction procedure is as follows. First, the legged base plate 3 having a length of about 20 cm is fixed to the erected position of the pillar of the foundation mold that has been arranged. A paper tube mold (not shown) whose diameter is about 20 cm larger than the column diameter is fixed on the base plate 3 and the bottom is closed, and the concrete is placed up to about half the height of the foundation (concrete 2b). After the predetermined concrete strength is generated, the paper tube form is removed. The pillar member 11 is installed in the hole 2c thus created, its base is fixed with a wedge, the upper part is fixed vertically with a temporary material (not shown), and the gap 2d is filled with mortar 2d. After the strength of the mortar 2d reaches a predetermined strength, the wedge is removed, and then the remaining basic concrete 2e is placed to fix the column member 11. The penetration depth is about twice the diameter of the column member 11.

なお、柱部材１１の下端部には端板１６が設けられており、また、柱部材１１の下部は金属製（例えば鋼製）の環状部１７により囲まれている。環状部１７は円筒形状をなしており、柱部材１１の下部のコンクリート１２を拘束してその強度を向上する。   In addition, the end plate 16 is provided in the lower end part of the column member 11, and the lower part of the column member 11 is surrounded by the cyclic | annular part 17 made from metal (for example, steel). The annular portion 17 has a cylindrical shape and restrains the concrete 12 below the column member 11 to improve its strength.

また、別の設置方法として、柱部材１１を、配筋された基礎型枠のほぼ中央部にレベルコンクリート４の上に設置されたベースプレート３上に立設、溶接等で固定し、不図示の仮設材により垂直に固定された後、コンクリートを打設して一体化してもよい。   As another installation method, the column member 11 is erected on the base plate 3 installed on the level concrete 4 at approximately the center of the arranged base formwork, and fixed by welding or the like. After being fixed vertically with a temporary material, concrete may be cast and integrated.

柱部材１１は、上記のとおり、内部空間１１ａを有して円筒状をなしているが、内部空間１１ａのうち、少なくともコンクリート基礎２に埋め込まれる部分にはコンクリート１２’が充填されている。コンクリート１２’は、、端板４２に設けた開口部から内部空間１１ａに打設する。コンクリート基礎２に埋め込まれる部分については、コンクリート１２’を充填して中実の構成とすることにより、根入れ部分の強度を向上して、その座屈等を防止できる。   As described above, the column member 11 has the inner space 11a and has a cylindrical shape. However, at least a portion embedded in the concrete foundation 2 in the inner space 11a is filled with concrete 12 '. The concrete 12 ′ is placed in the internal space 11 a from an opening provided in the end plate 42. About the part embedded in the concrete foundation 2, by filling concrete 12 'and making it a solid structure, the strength of a rooting part can be improved and the buckling etc. can be prevented.

以上の構成からなる塔状構造物Ａでは、その柱体１が下側から上側へ向かって全体的には縮径しているので、地震や風力による振れを低減できる。段階的に縮径していることから、縮径部位１ａ１ｂ以外の部分は、同径の部分が軸方向に延びている。したがって、柱部材１１、２１、３１の工場製造時にインサートを埋め込む作業は、２分割したリング状部材に予めインサートを取付けてからコンクリートを打設するようにしてもリング径の種類が多くなることはなくなり、柱部材１１、２１、３１の工場製造も容易化すると共に付属物設置のための部材の数が多くなりすぎて見苦しくなることもなく、外観に優れる。柱部材２１、３１はその下部２２、３２が相対的に大径であることから、連結部分の剛性を確保することができる。   In the tower-like structure A having the above-described configuration, the columnar body 1 is reduced in diameter from the lower side toward the upper side, so that shake due to an earthquake or wind force can be reduced. Since the diameter is reduced stepwise, portions other than the reduced diameter portion 1a1b have the same diameter extending in the axial direction. Therefore, the work of embedding the insert during the factory manufacture of the column members 11, 21, 31 increases the types of ring diameters even if concrete is placed after the insert is previously attached to the ring-shaped member divided into two parts. As a result, the manufacturing of the column members 11, 21, and 31 is facilitated, and the number of members for installing the accessories is not increased so that it is not unsightly, and the appearance is excellent. Since the lower portions 22 and 32 of the column members 21 and 31 have a relatively large diameter, the rigidity of the connecting portion can be ensured.

柱部材間の連結はフランジ部を有する連結部材４０、５０を介して行ったことから、建て入れ調整が可能であり、また、上部より相対的に太径の環状部４１の存在により連結部分の剛性を更に向上できる。径変化部２４（縮径部位１ａ）は環状部４１よりも上方に位置していることから、柱部材２１の太い部分（下部２２）が環状部４１で補強され、相乗的に剛性を向上できる。   Since the connection between the column members is performed through the connection members 40 and 50 having the flange portion, it is possible to adjust the erection, and due to the presence of the annular portion 41 having a relatively larger diameter than the upper portion, The rigidity can be further improved. Since the diameter changing portion 24 (the reduced diameter portion 1a) is located above the annular portion 41, the thick portion (lower portion 22) of the column member 21 is reinforced by the annular portion 41, and the rigidity can be improved synergistically. .

柱体１は全体として円筒体であり、中実の場合よりも軽量化が図れることから、特に、上部の重量を負担する下部において、必要な剛性を低下させることができる。その一方で、根入れ部分にはコンクリート１２’を充填したので、必要な曲げ耐力を確保できる。   Since the column 1 is a cylindrical body as a whole and can be reduced in weight as compared with a solid case, the required rigidity can be reduced particularly in the lower portion bearing the weight of the upper portion. On the other hand, since the concrete portion 12 'is filled in the root portion, the necessary bending strength can be secured.

Ａ 塔状構造物
１ 柱体
１０、２０、３０ 柱構成部材
１１、２１、３１ 柱部材
１ａ、１ｂ 縮径部位 A Tower-like structure 1 Column bodies 10, 20, 30 Column component members 11, 21, 31 Column members 1a, 1b Reduced diameter portion

Claims (2)

複数の柱構成部材を連結した柱体を備え、アンテナを支持する塔状構造物であって、
前記複数の柱構成部材が、それぞれ、
ＰＨＣ又はＰＲＣ製の柱部材と、
隣接する別の前記柱部材を連結するための連結部材と、を備え、
前記柱体は、その下側から上側へ向かって段階的に縮径しており、かつ、縮径する各部位は、前記柱部材の途中の部位であり、
前記途中の部位を有する前記柱部材は、
径が軸方向に同径の下部と、
前記下部よりも小径で軸方向に同径の上部と、
前記下部と前記上部との間の径変化部と、を有し、かつ該下部と該上部と該径変化部の内径は同径であり、
前記連結部材は、
前記柱部材の端部を囲む環状部と、
前記柱部材の端面に設けられ、かつ前記環状部の径方向外方に突出したフランジ部を有する端板と、を有し、
前記径変化部は、前記環状部から離間しており、
前記連結部材を介して連結された、上方の前記柱部材の下部と下方の前記柱部材の上部とは、外径が同径であることを特徴とする塔状構造物。 A columnar structure that includes a column body that connects a plurality of column component members and supports an antenna,
Each of the plurality of pillar constituent members is respectively
A pillar member made of PHC or PRC;
A connecting member for connecting another adjacent pillar member , and
The columnar diameter is gradually reduced from the lower side toward the upper side, and each part to be reduced in diameter is a part in the middle of the pillar member,
The column member having the intermediate part is
A lower portion having the same diameter in the axial direction;
An upper portion having a smaller diameter than the lower portion and the same diameter in the axial direction;
Have a, a diameter change section between the lower and the upper, and the inner diameter of the lower and the upper and該径change portion is the same diameter,
The connecting member is
An annular portion surrounding the end of the column member;
An end plate provided on an end surface of the pillar member and having a flange portion protruding radially outward of the annular portion;
The diameter changing portion is separated from the annular portion,
The tower-like structure characterized in that the outer diameter of the lower part of the upper column member and the upper part of the lower column member connected via the connecting member is the same. 各々の前記柱部材は、円筒状のコンクリート部と、該コンクリート部内に埋設される主筋及びＰＣ鋼線と、を備え、
前記途中の部位を有する前記柱部材の主筋は、前記上部の径を基準として配筋され、前記下部における主筋のかぶり厚が前記上部よりも厚くなっており、
前記ＰＣ鋼線の端部は、前記連結部材に連結されており、
前記柱体の最下部に位置し、基礎中に埋め込まれる部分を有する前記柱部材の内部空間のうち、少なくとも前記基礎に埋め込まれる部分にコンクリートが充填されていることを特徴とする請求項１に記載の塔状構造物。 Each of the column members includes a cylindrical concrete portion, and a main reinforcement and a PC steel wire embedded in the concrete portion,
The main bars of the column member having the intermediate part are arranged with reference to the diameter of the upper part, and the cover thickness of the main bars in the lower part is thicker than the upper part,
The end of the PC steel wire is connected to the connecting member,
2. The concrete according to claim 1, wherein at least a portion embedded in the foundation is filled in an internal space of the column member that is located at the lowermost portion of the column and has a portion embedded in the foundation. The tower structure described.
JP2011191044A 2011-09-01 2011-09-01 Tower structure Active JP5844579B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011191044A JP5844579B2 (en) 2011-09-01 2011-09-01 Tower structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011191044A JP5844579B2 (en) 2011-09-01 2011-09-01 Tower structure

Publications (2)

Publication Number Publication Date
JP2013053424A JP2013053424A (en) 2013-03-21
JP5844579B2 true JP5844579B2 (en) 2016-01-20

Family

ID=48130669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011191044A Active JP5844579B2 (en) 2011-09-01 2011-09-01 Tower structure

Country Status (1)

Country Link
JP (1) JP5844579B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6508079B2 (en) * 2016-02-05 2019-05-08 Ｊｆｅエンジニアリング株式会社 Tubular structure and tower structure
JP6627957B2 (en) * 2018-12-10 2020-01-08 Ｊｆｅエンジニアリング株式会社 Tubular and tower structures

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825330A (en) * 1971-08-12 1973-04-02
JPS62215717A (en) * 1986-03-14 1987-09-22 Kansai Asano Paul Kk Touch pc pile of high bending and super high bending strength
JP3074144U (en) * 2000-06-19 2000-12-19 株式会社ピー・エス Wind power tower
JP2002357018A (en) * 2001-06-04 2002-12-13 Giken Kogyo Kk Method for reinforcing cylindrical erected article
EP1336704B1 (en) * 2002-02-15 2013-02-13 NTT Infrastructure Network Corporation Concrete electric pole and method for reinforcing the same
JP3730224B2 (en) * 2002-02-15 2005-12-21 エヌ・ティ・ティ・インフラネット株式会社 Reinforcing method for concrete utility poles, reinforced concrete utility poles
JP2004011210A (en) * 2002-06-05 2004-01-15 Fuji Ps Corp Main tower for wind-power generation facility
JP2008013951A (en) * 2006-07-03 2008-01-24 Atlas Communication Co Ltd Split concrete pole

Also Published As

Publication number Publication date
JP2013053424A (en) 2013-03-21

Similar Documents

Publication Publication Date Title
EP2929182B1 (en) Wind turbine tower arrangement
JP6650995B1 (en) Steel tower foundation structure and its construction method
EP3892779A1 (en) Foundation for wind turbine towers
KR101247201B1 (en) Reinforcement member for preventing punching shear and construction method using the same
JP2017150248A (en) Foundation structure for solar panel
JP5844579B2 (en) Tower structure
JP5667020B2 (en) Formwork structure
JP5844584B2 (en) Tower structure
EP4079970A1 (en) Concrete foundation for a wind turbine tower and method for installing same
JP5484288B2 (en) Column foundations such as carports and terraces, column foundation construction methods and precast concrete blocks
JP5131645B2 (en) Construction method of steel tower foundation
JP6515279B2 (en) Anchor frame, foundation structure and construction method thereof
JP6865550B2 (en) How to build silo roof and silo roof structure
KR102157205B1 (en) Pillar reinforcement method of parking lot structure for residential use
KR100837263B1 (en) Composite pile making method
JP5809487B2 (en) Column structure and column reinforcement method
KR20190077888A (en) Composite phc pile for soil retaining wall
KR101750176B1 (en) Punching share stiffening member of separation type and strength enhancement manufacturing method of foundation slab using of the same
KR101315377B1 (en) Offshore structure and manufacturing method thereof and structuring method
JP7270816B2 (en) Seismic isolation upper foundation structure fabrication method and foundation structure fabrication method
JP7083285B2 (en) Seismic isolation upper foundation structure and its manufacturing method
KR100779582B1 (en) Reinforcing structure for steel pipe head and the reinforcing method
KR20190143420A (en) Reinforcement Structure of PHC Pile, PHC Pile having such Reinforcement Structure, and Constructing Method for such PHC Pile
JP6407603B2 (en) Joint structure between foundation pile and ground structure
JP6127325B2 (en) Support frame for anchor ring installation of windmill tower and manufacturing method thereof

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140121

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20141016

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20141024

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20141215

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150515

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150616

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151023

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151119

R150 Certificate of patent (=grant) or registration of utility model

Ref document number: 5844579

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150