JP6012398B2 - Steel tower reinforcement structure - Google Patents

Steel tower reinforcement structure Download PDF

Info

Publication number
JP6012398B2
JP6012398B2 JP2012235095A JP2012235095A JP6012398B2 JP 6012398 B2 JP6012398 B2 JP 6012398B2 JP 2012235095 A JP2012235095 A JP 2012235095A JP 2012235095 A JP2012235095 A JP 2012235095A JP 6012398 B2 JP6012398 B2 JP 6012398B2
Authority
JP
Japan
Prior art keywords
steel tower
piece
horizontal
angle
main pillar
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
JP2012235095A
Other languages
Japanese (ja)
Other versions
JP2014084653A (en
Inventor
達也 荻原
達也 荻原
井上 義文
義文 井上
信 長澤
信 長澤
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.)
Chugoku Electric Power Co Inc
Original Assignee
Chugoku Electric Power Co Inc
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 Chugoku Electric Power Co Inc filed Critical Chugoku Electric Power Co Inc
Priority to JP2012235095A priority Critical patent/JP6012398B2/en
Publication of JP2014084653A publication Critical patent/JP2014084653A/en
Application granted granted Critical
Publication of JP6012398B2 publication Critical patent/JP6012398B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Working Measures On Existing Buildindgs (AREA)

Description

本発明は、鉄塔の補強構造に関する。特に、トラス状構築物である鉄塔の基礎が容易に沈下や移動しないように、鉄塔の下部構造を補強工事する際に適用可能な鉄塔の補強構造に関する。   The present invention relates to a steel tower reinforcement structure. In particular, the present invention relates to a steel tower reinforcement structure that can be applied when reinforcing the lower structure of a steel tower so that the foundation of the steel tower, which is a truss-like structure, does not easily sink or move.

宅地又は道路の開発により、盛土・切土などの土木工事が既設の鉄塔の周囲で施工されると、地震や豪雨などの自然現象の影響も加味されて、鉄塔の基礎が沈下又は移動することがある。このような鉄塔の基礎が沈下又は移動する現象は、不同変位と呼ばれている。   When civil works such as embankments and cuts are carried out around existing steel towers due to the development of residential land or roads, the foundations of steel towers may sink or move in consideration of the effects of natural phenomena such as earthquakes and heavy rains. There is. Such a phenomenon that the foundation of the steel tower sinks or moves is called non-uniform displacement.

許容値を超えるような不同変位が鉄塔の基礎に発生することが予測される場合には、一般に、鉄塔の下部構造に何らかの補強工事が実施されている。例えば、既設の鉄塔の基礎が不同変位したことによって、発生した主柱材の応力を緩和及び解放する鉄塔の補強方法が開示されている(例えば、特許文献1参照)。   When it is predicted that an inconsistent displacement exceeding the allowable value is expected to occur in the foundation of the steel tower, in general, some reinforcement work is performed on the lower structure of the steel tower. For example, a method of reinforcing a steel tower is disclosed in which the stress of the main pillar material generated due to the displacement of the foundation of the existing steel tower is dissipated and released (see, for example, Patent Document 1).

特許文献1による鉄塔の補強方法は、ジャッキを介して、鉄塔の主柱材を支持鋼材によって仮設支持する鉄塔支持工程と、鉄塔の基礎の上端部のコンクリートを除去して内部の主柱材を露出させた後、露出した主柱材の任意の箇所を切断予定位置とし、その上下部分の主柱材に対して支圧板を固設すると共に、切断予定位置で主柱材を切断する主柱材切断工程と、切断部を含めた主柱材の周囲に補強鉄筋を配置すると共に、その外周に型枠を設置し、切断された主柱材を位置ズレさせた状態を維持して、鉄塔の基礎と連続するようにコンクリートを打設するコンクリート打設工程とを含んでいる。   The reinforcement method of the steel tower by patent document 1 removes the concrete of the upper end part of the tower foundation which temporarily supports the main pillar material of a steel tower with support steel materials via a jack, and removes the main pillar material inside. After the exposure, the main pillar that cuts the main column material at the planned cutting position, with any part of the exposed main column material as the planned cutting position, with the bearing plate fixed to the main column material at the upper and lower parts A steel cutting tower and reinforcing steel bars are arranged around the main pillar material including the cutting part, and a formwork is installed on the outer periphery thereof, and the state where the cut main pillar material is displaced is maintained. And a concrete placing process for placing concrete in a continuous manner.

又、大型機械を用いることなく、不同変位などの影響を受けた鉄塔部材の交換や補強を完全かつ経済的に実施することができる鉄塔補強工法が開示されている(例えば、特許文献2参照)。   Also, a steel tower reinforcement method is disclosed that can completely and economically replace and reinforce steel tower members affected by non-uniform displacement and the like without using a large machine (see, for example, Patent Document 2). .

特許文献2による鉄塔補強工法は、山形鋼からなる既設の主柱材の内側に、山形鋼からなる補強主柱材を溶接する第1補強工程と、既設の主柱材の外側に、平面プレートを溶接し、対向する平面プレートを山形鋼からなる水平材でボルト接合する第2補強工程と、含み、安全かつ経済的に鉄塔部材(主柱材)を補強している。   The steel tower reinforcement method by patent document 2 is the 1st reinforcement process which welds the reinforcement main pillar material which consists of angle iron inside the existing main pillar material which consists of angle iron, and a plane plate outside the existing main pillar material And the second reinforcing step of bolting the opposing flat plate with a horizontal material made of angle steel, and the steel tower member (main column material) is reinforced safely and economically.

特開2008−208634号公報JP 2008-208634 A 特開2006−342517号公報JP 2006-342517 A

特許文献1による鉄塔の補強方法は、沈下量が各基礎によって異なる、いわゆる不同沈下に対応できるが、基礎間の距離が異なる不同変位に対応することは困難であるという問題がある。不同沈下及び基礎間の距離が異なる不同変位に対応する鉄塔の補強構造が求められている。   The method of reinforcing a steel tower according to Patent Document 1 can cope with so-called non-uniform subsidence in which the subsidence amount varies depending on each foundation, but there is a problem that it is difficult to cope with non-uniform displacements with different distances between foundations. There is a need for a reinforced structure for steel towers that can handle different settlements and different displacements with different distances between foundations.

又、特許文献2による鉄塔補強工法は、山形鋼からなる水平材を平面プレートで主柱材にボルト接合している。この場合、強度の弱い山形鋼からなる水平材で主柱材間をボルト接合することは、不同変位に対応する補強構造として好ましくなく、強度の強いH形鋼からなる水平材で主柱材間をボルト接合することが好ましい。   Moreover, the steel tower reinforcement construction method by patent document 2 bolts the horizontal material which consists of angle iron to the main pillar material with the plane plate. In this case, it is not preferable to join the main column members with a horizontal member made of angle steel having a low strength as a reinforcing structure corresponding to non-uniform displacement. Are preferably bolted together.

一方、不同変位に対応して主柱材の基礎部を補強するために、重量物であるH形鋼をコンクリートが剥離された主柱材の基礎部にボルト接合することは、主柱材が強度に弱い山形鋼で構成されているため、主柱材の基礎部を変形させる心配があった。コンクリートが剥離された主柱材の基礎部の間をH形鋼からなる水平材でボルト接合しても、主柱材の基礎部を変形させない、鉄塔の補強構造が求められている。そして、以上のことが本発明の課題といってよい。   On the other hand, in order to reinforce the base part of the main pillar material in response to non-uniform displacement, bolting the H-shaped steel, which is a heavy object, to the base part of the main pillar material from which the concrete has been peeled is Since it is composed of angle-sensitive steel that is weak in strength, there is a concern of deforming the foundation of the main pillar material. There is a demand for a reinforcing structure for a steel tower that does not deform the foundation of the main pillar material even if it is bolted with a horizontal member made of H-shaped steel between the foundations of the main pillar material from which the concrete has been peeled off. The above can be said to be the subject of the present invention.

本発明は、このような課題に鑑みてなされたものであり、鉄塔の基礎が不同変位しないように、鉄塔の下部構造を補強する鉄塔の補強構造において、コンクリートが剥離された主柱材の基礎部の間をH形鋼からなる水平材でボルト接合しても、主柱材の基礎部を容易に変形させない、鉄塔の補強構造を提供することを目的とする。   The present invention has been made in view of such a problem, and in the reinforcing structure of a steel tower that reinforces the lower structure of the steel tower so that the foundation of the steel tower does not displace, the foundation of the main pillar material from which the concrete has been peeled off is provided. An object of the present invention is to provide a reinforced structure for a steel tower that does not easily deform the base portion of the main pillar material even if the parts are bolted with a horizontal member made of H-shaped steel.

本発明者は、コンクリートが剥離された山形鋼からなる主柱材の基礎部に、H形鋼からなる水平材をボルト接合する場合に、主柱材の基礎部にボルト接合された一組のリブ付き箱状部材で、水平材の端部を上下で挟むようにボルト接合することで、主柱材の基礎部の変形を防止できると考え、これに基づいて、以下のような新たな鉄塔の補強構造を発明するに至った。   The present inventor, when bolting a horizontal material made of H-shaped steel to a base part of a main pillar material made of angle steel from which concrete has been peeled, is a set of bolts joined to the base part of the main pillar material. It is thought that deformation of the foundation part of the main pillar material can be prevented by bolting so that the end of the horizontal member is sandwiched between the top and bottom of the box member with ribs, and based on this, the following new steel tower It came to invent the reinforcement structure of this.

(1)本発明による鉄塔の補強構造は、少なくとも四角鉄塔の主体を構成する山形鋼からなる主柱材を支持するコンクリート基礎が不同変位しないように、前記四角鉄塔の下部構造を補強する鉄塔の補強構造であって、前記コンクリート基礎の柱体部を剥離した状態で、四辺形の四隅に位置する前記主柱材の基礎部同士を結合したH形鋼からなる水平材と、前記水平材の端部の上面と前記主柱材の側面をボルト接続する箱状の上部コーナー金具と、前記水平材の端部の下面と前記主柱材の側面をボルト接続する箱状の下部コーナー金具と、を備え、前記上部コーナー金具と前記下部コーナー金具は、前記水平材の端部を挟持するように対向配置されている。   (1) The steel tower reinforcement structure according to the present invention is a steel tower reinforcement structure for reinforcing the lower structure of the square tower so that the concrete foundation supporting the main pillar material made of angle steel constituting at least the main body of the square tower is not displaced indefinitely. A horizontal structure made of H-shaped steel in which the base parts of the main pillars located at the four corners of the quadrilateral are bonded in a state in which the pillar part of the concrete foundation is peeled off, A box-shaped upper corner fitting that bolts the upper surface of the end portion and the side surface of the main pillar material; a box-shaped lower corner fitting that bolts the lower surface of the end portion of the horizontal member and the side surface of the main pillar material; The upper corner metal fitting and the lower corner metal fitting are arranged to face each other so as to sandwich the end portion of the horizontal member.

(2)前記上部コーナー金具は、一片が前記水平材の端部の上面に当接し、他片が前記主柱材の側面に当接する第1アングル部材と、前記第1アングル部材の端部に対向配置され、当該第1アングル部材の内壁に溶接された一対の板状の第1補強リブ部材と、を有することが好ましい。   (2) The upper corner fitting has a first angle member in which one piece comes into contact with the upper surface of the end portion of the horizontal member, and another piece comes in contact with a side surface of the main pillar member, and an end portion of the first angle member. It is preferable to have a pair of plate-like first reinforcing rib members that are arranged to face each other and are welded to the inner wall of the first angle member.

(3)前記第1補強リブ部材は、前記第1アングル部材の一片に溶接される一辺と、前記第1アングル部材の他片に溶接される他辺と、前記一辺と前記他片に対向する斜辺と、を有する直角三角形状の板部材で構成されていることが好ましい。   (3) The first reinforcing rib member faces one side welded to one piece of the first angle member, the other side welded to the other piece of the first angle member, and the one side and the other piece. It is preferable that the plate member has a right triangle shape having a hypotenuse.

(4)前記下部コーナー金具は、一片が前記水平材の端部の下面に当接し、他片が前記主柱材の側面に当接する第2アングル部材と、前記第2アングル部材の端部に対向配置され、当該第2アングル部材の内壁に溶接された一対の板状の第2補強リブ部材と、を有することが好ましい。   (4) The lower corner metal fitting includes a second angle member in which one piece is in contact with the lower surface of the end portion of the horizontal member, and another piece is in contact with a side surface of the main pillar member, and an end portion of the second angle member. It is preferable to have a pair of plate-like second reinforcing rib members that are arranged to face each other and are welded to the inner wall of the second angle member.

(5)前記第2補強リブ部材は、前記第2アングル部材の一片に溶接される一辺と、前記第2アングル部材の他片に溶接される他辺と、前記一辺と前記他片に対向する斜辺と、を有する直角三角形状の板部材で構成されていることが好ましい。   (5) The second reinforcing rib member faces one side welded to one piece of the second angle member, the other side welded to the other piece of the second angle member, and the one side and the other piece. It is preferable that the plate member has a right triangle shape having a hypotenuse.

本発明による鉄塔の補強構造は、コンクリートが剥離された山形鋼からなる主柱材の基礎部に、H形鋼からなる水平材をボルト接合する場合に、主柱材の基礎部にボルト接合された一組の箱状の上部コーナー金具及び下部コーナー金具で、水平材の端部を上下で挟むようにボルト接合することで、主柱材の基礎部の変形を防止できる。   The steel tower reinforcement structure according to the present invention is bolted to the base portion of the main column member when the horizontal member made of H-section steel is bolted to the base portion of the main column member made of angle steel from which the concrete has been peeled off. By deforming the base portion of the main pillar material by bolting the pair of box-shaped upper corner metal fittings and lower corner metal fittings so that the ends of the horizontal members are sandwiched between the upper and lower sides.

本発明の一実施形態による鉄塔の補強構造を示す正面図であり、鉄塔の上部構造は図示を省略している。It is a front view which shows the reinforcement structure of the steel tower by one Embodiment of this invention, and the upper structure of the steel tower is abbreviate | omitting illustration. 前記実施形態による鉄塔の補強構造を示す平面図であり、図1のA−A矢視断面図である。It is a top view which shows the reinforcement structure of the steel tower by the said embodiment, and is AA arrow sectional drawing of FIG. 前記実施形態による鉄塔の補強構造に備わる水平材の中央部を拡大した図であり、図3(A)は、水平材の中央部の平面図、図3(B)は、水平材の中央部の正面図である。It is the figure which expanded the center part of the horizontal material with which the reinforcement structure of the steel tower by the said embodiment was equipped, FIG. 3 (A) is a top view of the center part of a horizontal material, FIG.3 (B) is the center part of a horizontal material. FIG. 前記実施形態による鉄塔の補強構造に備わる第1対角補助材の中央部を拡大した図であり、図4(A)は、第1対角補助材の中央部の平面図、図4(B)は、第1対角補助材の中央部の正面図である。It is the figure which expanded the center part of the 1st diagonal auxiliary material with which the reinforcement structure of the steel tower by the said embodiment was equipped, FIG. 4 (A) is a top view of the center part of a 1st diagonal auxiliary material, FIG. ) Is a front view of the central portion of the first diagonal auxiliary member. 前記実施形態による鉄塔の主体を構成する主柱材を拡大した図であり、図5(A)は、主柱材の横断面図、図5(B)は、図5(A)の正面図である。It is the figure which expanded the main pillar material which comprises the main body of the steel tower by the said embodiment, FIG. 5 (A) is a cross-sectional view of a main pillar material, FIG.5 (B) is a front view of FIG. 5 (A). It is. 前記実施形態による鉄塔の補強構造に備わる上部コーナー金具及び下部コーナー金具の斜視図であり、鉄塔の下部を右側面の上方から観ている。It is a perspective view of the upper corner metal fitting and lower corner metal fitting with which the reinforcement structure of the steel tower by the said embodiment is seen, and the lower part of a steel tower is seen from upper right side. 前記実施形態による鉄塔の補強構造を示す正面図であり、鉄塔の補強構造にコンクリートを打設して保護した状態図である。It is a front view which shows the reinforcement structure of the steel tower by the said embodiment, and is the state figure which casts and protected concrete in the reinforcement structure of a steel tower. 前記実施形態による鉄塔の補強構造にコンクリートを打設して保護した状態図であり、図8(A)は、図7のB−B矢視断面図、図8(B)は、図8(A)のC−C矢視断面図である。FIG. 8A is a state diagram in which concrete is placed and protected on the reinforcing structure of the steel tower according to the embodiment. FIG. 8A is a cross-sectional view taken along the line B-B in FIG. 7, and FIG. It is CC sectional view taken on the line of A).

以下、図面を参照して本発明を実施するための形態を説明する。なお、鉄塔として四面同形の鉄塔主体を有する四角鉄塔を例示して、本発明を実施するための形態を以下に説明する。   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In addition, the form for implementing this invention is demonstrated below, exemplifying the square steel tower which has a steel tower main body of the same shape on four sides as a steel tower.

[鉄塔の補強構造の構成]
最初に、本発明の一実施形態による鉄塔の補強構造の構成を説明する。図1は、本発明の一実施形態による鉄塔の補強構造を示す正面図であり、鉄塔の上部構造は図示を省略している。図2は、前記実施形態による鉄塔の補強構造を示す平面図であり、図1のA−A矢視断面図である。
[Structure of steel tower reinforcement structure]
Initially, the structure of the reinforcement structure of the steel tower by one Embodiment of this invention is demonstrated. FIG. 1 is a front view showing a reinforcing structure of a steel tower according to an embodiment of the present invention, and an upper structure of the steel tower is not shown. FIG. 2 is a plan view showing a steel tower reinforcing structure according to the embodiment, and is a cross-sectional view taken along the line AA in FIG.

(全体構成)
図1又は図2を参照すると、本発明の一実施形態による鉄塔10は、鉄塔の主体を構成する四つの主柱材1a・1b・1c・1dを備えている。又、鉄塔10は、主柱材1a・1b・1c・1dを支持する逆T字型のコンクリート基礎2a・2b・2c・2dを備えている。コンクリート基礎2a・2b・2c・2dは、四辺形の四隅に位置するように配置されている。そして、実施形態による鉄塔10の補強構造は、コンクリート基礎2a・2b・2c・2dが不同変位しないように、鉄塔10の下部構造を補強している。
(overall structure)
Referring to FIG. 1 or FIG. 2, a steel tower 10 according to an embodiment of the present invention includes four main pillar members 1a, 1b, 1c, and 1d that constitute the main body of the steel tower. The steel tower 10 includes inverted T-shaped concrete foundations 2a, 2b, 2c, and 2d that support the main pillars 1a, 1b, 1c, and 1d. The concrete foundations 2a, 2b, 2c and 2d are arranged so as to be positioned at the four corners of the quadrilateral. The reinforcing structure of the steel tower 10 according to the embodiment reinforces the lower structure of the steel tower 10 so that the concrete foundations 2a, 2b, 2c, and 2d are not displaced indefinitely.

図1又は図2を参照すると、鉄塔10は、四つの水平材3、四つのスクリュー付きの第1鉄製杭3p、及び四つの第1ハット状部材3hを備えている。水平材3は、コンクリート基礎2a・2b・2c・2dの柱体部21pを剥離した状態で、主柱材1a・1b・1c・1dの基礎部11bを結合している。第1鉄製杭3pは、水平材3の中央部に位置するように、地面Gに打ち込んでいる。第1ハット状部材3hは、第1鉄製杭3pの頭部に取り付けている。   Referring to FIG. 1 or FIG. 2, the steel tower 10 includes four horizontal members 3, four first iron piles 3 p with screws, and four first hat-shaped members 3 h. The horizontal member 3 joins the base portions 11b of the main column members 1a, 1b, 1c, and 1d in a state where the column body portions 21p of the concrete foundations 2a, 2b, 2c, and 2d are peeled off. The first iron pile 3p is driven into the ground G so as to be located at the center of the horizontal member 3. The first hat-shaped member 3h is attached to the head of the first iron pile 3p.

図1又は図2を参照すると、鉄塔10は、一対一組の対辺補助材31a・31b・31c・31d、第1対角補助材41、及び一組の第2対角補助材42・42を備えている。又、鉄塔10は、スクリュー付きの第2鉄製杭4pと第2ハット状部材4hを備えている。   Referring to FIG. 1 or FIG. 2, the steel tower 10 includes a pair of opposite side auxiliary materials 31a, 31b, 31c, and 31d, a first diagonal auxiliary material 41, and a set of second diagonal auxiliary materials 42 and 42. I have. Moreover, the steel tower 10 is equipped with the 2nd iron-made pile 4p with a screw, and the 2nd hat-shaped member 4h.

図1又は図2を参照すると、対辺補助材31aは、主柱材1aの近傍に配置され、直交するように隣接する一組の水平材3・3を結合している。対辺補助材31bは、主柱材1bの近傍に配置され、直交するように隣接する一組の水平材3・3を結合している。対辺補助材31cは、主柱材1cの近傍に配置され、直交するように隣接する一組の水平材3・3を結合している。対辺補助材31dは、主柱材1dの近傍に配置され、直交するように隣接する一組の水平材3・3を結合している。   Referring to FIG. 1 or FIG. 2, the opposite side auxiliary member 31a is disposed in the vicinity of the main pillar member 1a, and connects a pair of adjacent horizontal members 3 and 3 so as to be orthogonal to each other. The opposite side auxiliary member 31b is disposed in the vicinity of the main pillar member 1b, and connects a pair of adjacent horizontal members 3 and 3 so as to be orthogonal to each other. The opposite side auxiliary member 31c is disposed in the vicinity of the main pillar member 1c, and couples a pair of adjacent horizontal members 3 and 3 so as to be orthogonal to each other. The opposite side auxiliary member 31d is disposed in the vicinity of the main pillar member 1d, and connects a pair of adjacent horizontal members 3 and 3 so as to be orthogonal to each other.

図1又は図2を参照すると、第1対角補助材41は、その両端部を一方の対向する対辺補助材31a・31cに結合している。一方の第2対角補助材42は、対辺補助材31bに一端部を結合し、第1対角補助材41に対して直交するように、他端部を第1対角補助材41の中央部に当接している(図4参照)。他方の第2対角補助材42は、対辺補助材31cに一端部を結合し、第1対角補助材41に対して直交するように、他端部を第1対角補助材41の中央部に当接している(図4参照)。   Referring to FIG. 1 or FIG. 2, the first diagonal auxiliary material 41 has its both ends joined to one opposing opposite side auxiliary material 31 a and 31 c. One of the second diagonal auxiliary members 42 is coupled at one end to the opposite side auxiliary member 31 b and has the other end at the center of the first diagonal auxiliary member 41 so as to be orthogonal to the first diagonal auxiliary member 41. (See FIG. 4). The other second diagonal auxiliary member 42 is coupled at one end to the opposite side auxiliary member 31 c and has the other end at the center of the first diagonal auxiliary member 41 so as to be orthogonal to the first diagonal auxiliary member 41. (See FIG. 4).

図1又は図2を参照すると、第2鉄製杭4pは、第1対角補助材41の中央部に位置するように、地面Gに打ち込んでいる。第2ハット状部材4hは、第2鉄製杭4pの頭部に取り付けている。   Referring to FIG. 1 or FIG. 2, the second iron pile 4 p is driven into the ground G so as to be located at the center of the first diagonal auxiliary material 41. The second hat-shaped member 4h is attached to the head of the second iron pile 4p.

引き続き、鉄塔10の補強構造の構成を説明する。図3は、前記実施形態による鉄塔の補強構造に備わる水平材の中央部を拡大した図であり、図3(A)は、水平材の中央部の平面図、図3(B)は、水平材の中央部の正面図である。   Next, the configuration of the reinforcing structure of the steel tower 10 will be described. FIG. 3 is an enlarged view of the central portion of the horizontal member provided in the steel tower reinforcing structure according to the embodiment, FIG. 3 (A) is a plan view of the central portion of the horizontal member, and FIG. 3 (B) is a horizontal view. It is a front view of the center part of material.

図4は、前記実施形態による鉄塔の補強構造に備わる第1対角補助材の中央部を拡大した図であり、図4(A)は、第1対角補助材の中央部の平面図、図4(B)は、第1対角補助材の中央部の正面図である。図5は、前記実施形態による鉄塔の主体を構成する主柱材を拡大した図であり、図5(A)は、主柱材の横断面図、図5(B)は、図5(A)の正面図である。   FIG. 4 is an enlarged view of a central portion of the first diagonal auxiliary member provided in the steel tower reinforcing structure according to the embodiment, and FIG. 4 (A) is a plan view of the central portion of the first diagonal auxiliary member, FIG. 4B is a front view of the central portion of the first diagonal auxiliary material. FIG. 5 is an enlarged view of the main pillar material constituting the main body of the steel tower according to the embodiment, FIG. 5 (A) is a cross-sectional view of the main pillar material, and FIG. 5 (B) is FIG. Is a front view.

図6は、前記実施形態による鉄塔の補強構造に備わる上部コーナー金具及び下部コーナー金具の斜視図であり、鉄塔の下部を右側面の上方から観ている。   FIG. 6 is a perspective view of the upper corner fitting and the lower corner fitting provided in the steel tower reinforcement structure according to the embodiment, and the lower part of the steel tower is viewed from above the right side surface.

(水平材の構成)
図3又は図5を参照すると、水平材3は、一対のフランジ3f・3fとこれらのフランジ3f・3fの中央部をウェブ3wで結合したH形鋼で構成している。水平材3の端部には、上部コーナー金具5と下部コーナー金具6がボルト(図示せず)で固定されている。これらの上部コーナー金具5及び下部コーナー金具6は、ボルト(図示せず)で主柱材1a・1b・1c・1dの基礎部11bに固定されている(図3参照)。なお、図1を参照すると、水平材3の中央部には、一対のフランジ3f・3fの間に、補強材3gを接合している。
(Configuration of horizontal material)
Referring to FIG. 3 or FIG. 5, the horizontal member 3 is composed of a pair of flanges 3 f and 3 f and H-shaped steel in which the center portions of these flanges 3 f and 3 f are joined by a web 3 w. An upper corner fitting 5 and a lower corner fitting 6 are fixed to the end of the horizontal member 3 with bolts (not shown). The upper corner metal fitting 5 and the lower corner metal fitting 6 are fixed to the base portion 11b of the main pillar materials 1a, 1b, 1c, and 1d with bolts (not shown) (see FIG. 3). Referring to FIG. 1, a reinforcing member 3 g is joined to a central portion of the horizontal member 3 between a pair of flanges 3 f and 3 f.

(上部コーナー金具及び下部コーナー金具の構成)
図5又は図6を参照すると、実施形態による鉄塔10は、箱状の上部コーナー金具5と、箱状の下部コーナー金具6を備えている。上部コーナー金具5は、水平材3の端部の上面と主柱材1a・1b・1c・1dの側面をボルト接続している。下部コーナー金具6は、水平材3の端部の下面と主柱材1a・1b・1c・1dの側面をボルト接続している。そして、上部コーナー金具5と下部コーナー金具6は、水平材3の端部を挟持するように対向配置されている。
(Configuration of upper corner bracket and lower corner bracket)
Referring to FIG. 5 or FIG. 6, the steel tower 10 according to the embodiment includes a box-shaped upper corner fitting 5 and a box-shaped lower corner fitting 6. The upper corner metal fitting 5 is bolted to the upper surface of the end of the horizontal member 3 and the side surfaces of the main pillar members 1a, 1b, 1c, and 1d. The lower corner bracket 6 is connected to the lower surface of the end portion of the horizontal member 3 and the side surfaces of the main pillar members 1a, 1b, 1c, and 1d by bolts. And the upper corner metal fitting 5 and the lower corner metal fitting 6 are opposingly arranged so that the edge part of the horizontal member 3 may be clamped.

図5又は図6を参照すると、上部コーナー金具5は、第1アングル部材5tと一対の板状の第1補強リブ部材5r・5rで構成している。第1アングル部材5tは、一片51が水平材3の端部の上面に当接し、他片52が主柱材1a・1b・1c・1dの側面に当接している。一対の第1補強リブ部材5r・5rは、第1アングル部材5tの端部に対向配置され、第1アングル部材5tの内壁に隅肉溶接されている。   Referring to FIG. 5 or FIG. 6, the upper corner metal fitting 5 is composed of a first angle member 5t and a pair of plate-like first reinforcing rib members 5r and 5r. In the first angle member 5t, one piece 51 is in contact with the upper surface of the end portion of the horizontal member 3, and the other piece 52 is in contact with the side surfaces of the main pillar members 1a, 1b, 1c, and 1d. The pair of first reinforcing rib members 5r and 5r is disposed opposite to the end of the first angle member 5t, and is fillet welded to the inner wall of the first angle member 5t.

図5又は図6を参照すると、第1補強リブ部材5rは、第1アングル部材5tの一片51に溶接される一辺と、第1アングル部材5tの他片52に溶接される他辺と、前記一辺と前記他片に対向する斜辺と、を有する直角三角形状の板部材で構成されている。   Referring to FIG. 5 or FIG. 6, the first reinforcing rib member 5r includes one side welded to one piece 51 of the first angle member 5t, the other side welded to the other piece 52 of the first angle member 5t, The plate member has a right triangle shape having one side and a hypotenuse opposite to the other piece.

図5又は図6を参照すると、下部コーナー金具6は、第2アングル部材6tと一対の板状の第2補強リブ部材6r・6rで構成している。第2アングル部材6tは、一片61が水平材3の端部の下面に当接し、他片62が主柱材1a・1b・1c・1dの側面に当接している。一対の第2補強リブ部材6r・6rは、第2アングル部材6tの端部に対向配置され、第2アングル部材6tの内壁に隅肉溶接されている。   Referring to FIG. 5 or FIG. 6, the lower corner metal fitting 6 is composed of a second angle member 6t and a pair of plate-like second reinforcing rib members 6r and 6r. As for the 2nd angle member 6t, one piece 61 is contact | abutted to the lower surface of the edge part of the horizontal member 3, and the other piece 62 is contact | abutted to the side surface of main pillar material 1a * 1b * 1c * 1d. The pair of second reinforcing rib members 6r and 6r are disposed to face the end of the second angle member 6t, and are fillet welded to the inner wall of the second angle member 6t.

図5又は図6を参照すると、第2補強リブ部材6rは、第2アングル部材6tの一片61に溶接される一辺と、第2アングル部材6tの他片62に溶接される他辺と、前記一辺と前記他片に対向する斜辺と、を有する直角三角形状の板部材で構成されている。   Referring to FIG. 5 or FIG. 6, the second reinforcing rib member 6r includes one side welded to one piece 61 of the second angle member 6t, the other side welded to the other piece 62 of the second angle member 6t, The plate member has a right triangle shape having one side and a hypotenuse opposite to the other piece.

(第1ハット状部材の構成)
図1又は図3を参照すると、第1ハット状部材3hは、第1円筒部材31hと第1水平板32hで構成している。第1円筒部材31hは、第1鉄製杭3pと同軸上に突合せ溶接している。第1水平板32hは、第1円筒部材31hの上面に結合している。第1水平板32hの下面と第1円筒部材31hに外周には、複数のリブ板3rを溶接しており、第1水平板32hを補強している。又、第1水平板32hは、下方に配置された一方のフランジ3fの下面に当接可能な矩形の載置面30を設けている。
(Configuration of first hat-shaped member)
Referring to FIG. 1 or FIG. 3, the first hat-shaped member 3h includes a first cylindrical member 31h and a first horizontal plate 32h. The first cylindrical member 31h is butt welded coaxially with the first iron pile 3p. The first horizontal plate 32h is coupled to the upper surface of the first cylindrical member 31h. A plurality of rib plates 3r are welded to the lower surface of the first horizontal plate 32h and the outer periphery of the first cylindrical member 31h to reinforce the first horizontal plate 32h. The first horizontal plate 32h is provided with a rectangular placement surface 30 that can contact the lower surface of one flange 3f disposed below.

(第1水平板の構成)
図1又は図3を参照すると、第1水平板32hは、水平材3の長手方向に沿って、フランジ3fの両側縁が載置面30に隅肉溶接されている。又、第1水平板32hの板厚面と水平材3の下面は、隅肉溶接されている。第1水平板32hは、一方のフランジ3fに隅肉溶接できるように、第1円筒部材31hの外径よりも大きく、かつ、フランジ3fの幅wよりも幅広の幅W1に形成されている(図1参照)。又、第1水平板32hは、一方のフランジ3fに所定の隅肉溶接長さが確保できるように、フランジ3fの長手方向に第1円筒部材31hの外径よりも大きい長さを有している。
(Configuration of the first horizontal plate)
Referring to FIG. 1 or FIG. 3, in the first horizontal plate 32 h, both side edges of the flange 3 f are fillet welded to the mounting surface 30 along the longitudinal direction of the horizontal member 3. The plate thickness surface of the first horizontal plate 32h and the lower surface of the horizontal member 3 are fillet welded. The first horizontal plate 32h is formed to have a width W1 larger than the outer diameter of the first cylindrical member 31h and wider than the width w of the flange 3f so that fillet welding can be performed on one flange 3f ( (See FIG. 1). The first horizontal plate 32h has a length larger than the outer diameter of the first cylindrical member 31h in the longitudinal direction of the flange 3f so that a predetermined fillet weld length can be secured on one flange 3f. Yes.

(第1対角補助材の構成)
図2又は図4を参照すると、第1対角補助材41は、一対のフランジ4f・4fとこれらのフランジ4f・4fの中央部をウェブ4wで結合したH形鋼で構成している。第1対角補助材41の一方の端部は、フランジ4fが対辺補助材31aにボルト(図示せず)で固定されている。第1対角補助材41の他方の端部は、フランジ4fが対辺補助材31cにボルト(図示せず)で固定されている。
(Configuration of the first diagonal auxiliary material)
Referring to FIG. 2 or FIG. 4, the first diagonal auxiliary member 41 is composed of a pair of flanges 4f and 4f and an H-shaped steel in which the center portions of these flanges 4f and 4f are joined by a web 4w. At one end of the first diagonal auxiliary member 41, the flange 4f is fixed to the opposite side auxiliary member 31a with a bolt (not shown). At the other end of the first diagonal auxiliary member 41, the flange 4f is fixed to the opposite side auxiliary member 31c with a bolt (not shown).

(第2対角補助材の構成)
図2又は図4を参照すると、第2対角補助材42は、一対のフランジ4f・4fとこれらのフランジ4f・4fの中央部をウェブ4wで結合したH形鋼で構成している。一方の第2対角補助材42は、一方の端部を対辺補助材31bにボルト(図示せず)で固定し、第1対角補助材41に対して直交するように、他端部を第1対角補助材41の中央部に当接している。他方の第2対角補助材42は、一方の端部を対辺補助材31dにボルト(図示せず)で固定し、第1対角補助材41に対して直交するように、他端部を第1対角補助材41の中央部に当接している。
(Configuration of second diagonal auxiliary material)
Referring to FIG. 2 or FIG. 4, the second diagonal auxiliary member 42 is composed of a pair of flanges 4f and 4f and an H-shaped steel in which the center portions of these flanges 4f and 4f are joined by a web 4w. One second diagonal auxiliary member 42 is fixed at one end to the opposite side auxiliary member 31b with a bolt (not shown), and the other end thereof is orthogonal to the first diagonal auxiliary member 41. It is in contact with the central portion of the first diagonal auxiliary member 41. The other second diagonal auxiliary member 42 is fixed at one end to the opposite side auxiliary member 31d with a bolt (not shown), and the other end thereof is orthogonal to the first diagonal auxiliary member 41. It is in contact with the central portion of the first diagonal auxiliary member 41.

(第2ハット状部材の構成)
図2又は図4を参照すると、第2ハット状部材4hは、第2円筒部材41hと第2水平板42hで構成している。第2円筒部材41hは、第2鉄製杭4pと同軸上に突合せ溶接している。第1対角補助材41は、第2円筒部材41hの上面に結合している。第2水平板42hの下面と第2円筒部材41hに外周には、複数のリブ板4rを溶接しており、第2水平板42hを補強している。又、第2水平板42hは、下方に配置された一方のフランジ4fの下面に当接可能な矩形の載置面40を設けている。
(Configuration of second hat-shaped member)
Referring to FIG. 2 or FIG. 4, the second hat-shaped member 4h is composed of a second cylindrical member 41h and a second horizontal plate 42h. The second cylindrical member 41h is butt welded coaxially with the second iron pile 4p. The first diagonal auxiliary member 41 is coupled to the upper surface of the second cylindrical member 41h. A plurality of rib plates 4r are welded to the lower surface of the second horizontal plate 42h and the outer periphery of the second cylindrical member 41h to reinforce the second horizontal plate 42h. Further, the second horizontal plate 42h is provided with a rectangular placement surface 40 that can come into contact with the lower surface of one flange 4f disposed below.

(第2水平板の構成)
図2又は図4を参照すると、第2水平板42hは、第1対角補助材41の長手方向に沿って、フランジ4fの両側縁が載置面40に隅肉溶接されている。又、第2水平板42hの板厚面と第1対角補助材41の下面は、隅肉溶接されている。第2水平板42hは、一方のフランジ4fに隅肉溶接できるように、第2円筒部材41hの外径よりも大きく、かつ、フランジ4fの幅wよりも幅広の幅W2に形成されている(図2参照)。又、第2水平板42hは、第1対角補助材41の一方のフランジ4fに所定の隅肉溶接長さが確保できるように、第1対角補助材41の長手方向に第2円筒部材41hの外径よりも大きい長さを有している。
(Configuration of the second horizontal plate)
Referring to FIG. 2 or FIG. 4, in the second horizontal plate 42 h, both side edges of the flange 4 f are fillet welded to the mounting surface 40 along the longitudinal direction of the first diagonal auxiliary member 41. The plate thickness surface of the second horizontal plate 42h and the lower surface of the first diagonal auxiliary member 41 are fillet welded. The second horizontal plate 42h is formed to have a width W2 larger than the outer diameter of the second cylindrical member 41h and wider than the width w of the flange 4f so that fillet welding can be performed on one flange 4f ( (See FIG. 2). Further, the second horizontal plate 42h has a second cylindrical member in the longitudinal direction of the first diagonal auxiliary member 41 so that a predetermined fillet weld length can be secured on one flange 4f of the first diagonal auxiliary member 41. It has a length larger than the outer diameter of 41h.

図2又は図4を参照すると、第2水平板42hは、第2対角補助材42の長手方向に沿って、フランジ4fの両側縁が載置面40に隅肉溶接されている。又、第2水平板42hの板厚面と第2対角補助材42の下面は、隅肉溶接されている。   Referring to FIG. 2 or FIG. 4, in the second horizontal plate 42 h, both side edges of the flange 4 f are fillet welded to the mounting surface 40 along the longitudinal direction of the second diagonal auxiliary material 42. The plate thickness surface of the second horizontal plate 42h and the lower surface of the second diagonal auxiliary member 42 are fillet welded.

このように構成された鉄塔の補強構造は、鉄塔の下部構造にコンクリートを打設して、更に基礎が補強される。そして、次に、基礎の補強構造を説明する。   In the steel tower reinforcement structure constructed as described above, concrete is placed in the lower structure of the steel tower, and the foundation is further reinforced. Next, the foundation reinforcement structure will be described.

図7は、前記実施形態による鉄塔の補強構造を示す正面図であり、鉄塔の補強構造にコンクリートを打設して保護した状態図である。図8は、前記実施形態による鉄塔の補強構造にコンクリートを打設して保護した状態図であり、図8(A)は、図7のB−B矢視断面図、図8(B)は、図8(A)のC−C矢視断面図である。   FIG. 7 is a front view showing the reinforcing structure of the steel tower according to the embodiment, and is a state diagram in which concrete is placed and protected on the reinforcing structure of the steel tower. FIG. 8 is a state diagram in which concrete is placed and protected on the reinforcing structure of the steel tower according to the embodiment. FIG. 8A is a cross-sectional view taken along the line BB in FIG. 7, and FIG. FIG. 9 is a cross-sectional view taken along the line CC in FIG.

図7又は図8を参照すると、柱体部21p(図1参照)が剥離されたコンクリート基礎2a・2b・2c・2dは、主柱材1a・1b・1c・1dの基礎部11b(図1参照)に水平材3が結合した状態で、基礎部11bの周囲に型枠(図示せず)が設置され、コンクリートが打設される。そして、コンクリート基礎21a・21b・21c・21dを新設している。なお、コンクリート基礎21a・21b・21c・21dは、鉄塔10の荷重を地盤に伝えるフーチング基礎20a・20b・20c・20dに設置されている。   Referring to FIG. 7 or FIG. 8, the concrete foundations 2a, 2b, 2c, and 2d from which the column portion 21p (see FIG. 1) has been peeled off are the foundation portions 11b of the main pillar materials 1a, 1b, 1c, and 1d (FIG. 1). In the state in which the horizontal member 3 is coupled to (see), a formwork (not shown) is installed around the base portion 11b, and concrete is placed. And concrete foundation 21a * 21b * 21c * 21d is newly established. The concrete foundations 21a, 21b, 21c, and 21d are installed on the footing foundations 20a, 20b, 20c, and 20d that transmit the load of the steel tower 10 to the ground.

又、図7又は図8を参照すると、第1ハット状部材3hが水平材3に結合した状態で、第1ハット状部材3h及び水平材3の周囲に型枠(図示せず)が設置され、コンクリートを打設している。つまり、第1ハット状部材3h及び水平材3は、保護コンクリートGcで覆われている。   Referring to FIG. 7 or FIG. 8, a mold (not shown) is installed around the first hat-shaped member 3 h and the horizontal member 3 in a state where the first hat-shaped member 3 h is coupled to the horizontal member 3. Concrete is being laid. That is, the first hat-shaped member 3h and the horizontal member 3 are covered with the protective concrete Gc.

更に、図7又は図8を参照すると、第2ハット状部材4hが第1対角補助材41及び第2対角補助材42に結合した状態で、第2ハット状部材4h及び第1対角補助材41の周囲に型枠(図示せず)が設置されると共に、第2対角補助材42の周囲に型枠(図示せず)が設置され、コンクリートを打設している。つまり、第2ハット状部材4h及び第1対角補助材41は、保護コンクリートGcで覆われている。又、第2対角補助材42は、保護コンクリートGcで覆われている。   Further, referring to FIG. 7 or FIG. 8, the second hat-shaped member 4 h and the first diagonal member 4 h are connected to the first diagonal auxiliary member 41 and the second diagonal auxiliary member 42. A formwork (not shown) is installed around the auxiliary material 41, and a formwork (not shown) is installed around the second diagonal auxiliary material 42 to place concrete. That is, the second hat-shaped member 4h and the first diagonal auxiliary member 41 are covered with the protective concrete Gc. The second diagonal auxiliary material 42 is covered with protective concrete Gc.

なお、図8を参照すると、コンクリート基礎2a・2b・2c・2dの柱体部21p(図1参照)を剥離(はつり除去)するために、初期の地面Ghを工事用の地面Gまで掘り出して、柱体部21pを露出している。そして、鉄塔の下部構造にコンクリートを打設した後に、初期の地面Ghに覆土して、一連の補強工事を終了する。   Referring to FIG. 8, the initial ground Gh is dug up to the ground G for construction in order to peel (remove the suspension) the columnar portions 21p (see FIG. 1) of the concrete foundations 2a, 2b, 2c, and 2d. The column part 21p is exposed. And after placing concrete in the lower structure of a steel tower, it covers the initial ground Gh and completes a series of reinforcement works.

[鉄塔の補強構造の作用]
次に、実施形態による鉄塔10の補強構造の作用及び効果を説明する。図1又は図2を参照すると、実施形態による鉄塔10の補強構造は、コンクリート基礎2a・2b・2c・2dの柱体部21pを剥離した状態で、四辺形の四隅に位置する山形鋼からなる主柱材1a・1b・1c・1dの基礎部11b同士をH形鋼からなる水平材3で結合している。そして、図5又は図6を参照すると、実施形態による鉄塔10の補強構造は、主柱材1a・1b・1c・1dの基礎部11bにボルト接合された一組の箱状の上部コーナー金具5及び下部コーナー金具6で、水平材3の端部を上下で挟むようにボルト接合している。
[Operation of steel tower reinforcement structure]
Next, the effect | action and effect of the reinforcement structure of the steel tower 10 by embodiment are demonstrated. Referring to FIG. 1 or FIG. 2, the reinforcing structure of the steel tower 10 according to the embodiment is made of angle steels located at the four corners of the quadrilateral in a state where the column portions 21p of the concrete foundations 2a, 2b, 2c, and 2d are peeled off. The base portions 11b of the main pillars 1a, 1b, 1c, and 1d are joined together by a horizontal member 3 made of H-shaped steel. 5 or 6, the reinforcing structure of the steel tower 10 according to the embodiment is a set of box-shaped upper corner fittings 5 that are bolted to the base portions 11b of the main pillars 1a, 1b, 1c, and 1d. And the lower corner metal fitting 6 is bolted so that the edge part of the horizontal material 3 may be pinched | interposed up and down.

図5又は図6を参照して、不同変位に対応して主柱材1a・1b・1c・1dの基礎部11bを補強するために、重量物であるH形鋼からなる水平材3をコンクリートが剥離された主柱材1a・1b・1c・1dの基礎部11bに直接、ボルト接合することは、主柱材1a・1b・1c・1dが強度に弱い山形鋼で構成されているため、主柱材1a・1b・1c・1dの基礎部11bを変形させる心配があった。   Referring to FIG. 5 or FIG. 6, in order to reinforce the base portion 11b of the main pillars 1a, 1b, 1c, and 1d in response to the non-uniform displacement, the horizontal material 3 made of H-shaped steel, which is a heavy object, is applied to the concrete. Since the main columnar materials 1a, 1b, 1c, and 1d are made of angle-sensitive steel, the main columnar materials 1a, 1b, 1c, and 1d are made of weak angle steel. There was a concern of deforming the base 11b of the main pillars 1a, 1b, 1c, and 1d.

図5又は図6を参照すると、コンクリートが剥離された山形鋼からなる主柱材1a・1b・1c・1dの基礎部11bに、重量物であるH形鋼からなる水平材3をボルト接合する場合に、主柱材1a・1b・1c・1dの基礎部11bにボルト接合された一組の箱状の上部コーナー金具5及び下部コーナー金具6で、水平材3の端部を上下で挟むようにボルト接合することで、主柱材1a・1b・1c・1dの基礎部11bの変形を防止できる。   Referring to FIG. 5 or FIG. 6, a horizontal member 3 made of H-shaped steel, which is a heavy object, is bolted to the base portion 11 b of the main pillar material 1 a, 1 b, 1 c, 1 d made of angle steel from which the concrete has been peeled off. In this case, a pair of box-shaped upper corner metal fitting 5 and lower corner metal fitting 6 that are bolted to the base 11b of the main pillars 1a, 1b, 1c, and 1d are sandwiched between the ends of the horizontal material 3 vertically. It is possible to prevent deformation of the base portion 11b of the main pillar materials 1a, 1b, 1c, and 1d.

図5又は図6を参照して、上部コーナー金具5は、水平材3の荷重に起因する引張応力に対して、第1アングル部材5tが変形しないように、第1アングル部材5tの両端部の内壁に、一対の板状の第1補強リブ部材5r・5rを溶接しておくことが好ましい。   Referring to FIG. 5 or FIG. 6, the upper corner metal fitting 5 is provided at both end portions of the first angle member 5 t so that the first angle member 5 t is not deformed by the tensile stress caused by the load of the horizontal member 3. It is preferable to weld a pair of plate-like first reinforcing rib members 5r and 5r to the inner wall.

図5又は図6を参照して、下部コーナー金具6は、水平材3の荷重に起因する圧縮応力に対して、第2アングル部材6tが変形しないように、第2アングル部材6tの両端部の内壁に、一対の板状の第2補強リブ部材6r・6rを溶接しておくことが好ましい。   Referring to FIG. 5 or FIG. 6, the lower corner metal fitting 6 is provided at both end portions of the second angle member 6t so that the second angle member 6t is not deformed by the compressive stress caused by the load of the horizontal member 3. It is preferable to weld a pair of plate-like second reinforcing rib members 6r and 6r to the inner wall.

図5又は図6を参照して、上部コーナー金具5及び下部コーナー金具6は、強度を保証しながら、自重を軽減するために、第1補強リブ部材5r及び第2補強リブ部材6rを直角三角形状の板部材で構成することが好ましい。又、第1補強リブ部材5r及び第2補強リブ部材6rを直角三角形状の板部材で構成することで、上部コーナー金具5及び下部コーナー金具6を締結するボルトの頭部又はナットを回転させる工具が操作し易くなるという利点もある。   Referring to FIG. 5 or FIG. 6, the upper corner metal fitting 5 and the lower corner metal fitting 6 are formed in a right triangle so that the first reinforcing rib member 5r and the second reinforcing rib member 6r are reduced in order to reduce their own weight while ensuring strength. It is preferable to use a plate member having a shape. Moreover, the tool which rotates the head or nut of the volt | bolt which fastens the upper corner metal fitting 5 and the lower corner metal fitting 6 by comprising the 1st reinforcement rib member 5r and the 2nd reinforcement rib member 6r by the plate member of a right triangle shape. There is also an advantage that is easy to operate.

本発明による鉄塔の補強構造は、鉄塔の基礎が不同変位しないように、鉄塔の下部構造を補強する鉄塔の補強構造において、コンクリートが剥離された主柱材の基礎部の間をH形鋼からなる水平材でボルト接合しても、主柱材の基礎部を変形させないように補強しており、次の効果が期待できる。
(1)水平材を主柱材の基礎部に容易に結合できる。
(2)補強工事を停滞なく進行できる。
(3)現場加工することなく、容易に組立できる。
(4)工事の安全性を向上できる。
The steel tower reinforcement structure according to the present invention is a steel tower reinforcement structure that reinforces the lower structure of the steel tower so that the foundation of the steel tower is not displaced in a uniform manner. Even if it is bolted with a horizontal material, it is reinforced so that the base part of the main pillar material is not deformed, and the following effects can be expected.
(1) The horizontal member can be easily coupled to the base portion of the main column member.
(2) Reinforcement work can proceed without stagnation.
(3) Easy assembly without on-site processing.
(4) The construction safety can be improved.

1a・1b・1c・1d 主柱材
2a・2b・2c・2d コンクリート基礎
3 水平材
5 上部コーナー金具
6 下部コーナー金具
10 鉄塔
11b 基礎部(主柱材の基礎部)
21p 柱体部(コンクリート基礎の柱体部)
1a, 1b, 1c, 1d Main pillar material 2a, 2b, 2c, 2d Concrete foundation 3 Horizontal material 5 Upper corner metal fittings 6 Lower corner metal fittings 10 Steel tower 11b Foundation part (base part of main pillar material)
21p Column (Concrete foundation column)

Claims (5)

少なくとも四角鉄塔の主体を構成する山形鋼からなる主柱材を支持するコンクリート基礎が不同変位しないように、前記四角鉄塔の下部構造を補強する鉄塔の補強構造であって、
前記コンクリート基礎の柱体部を剥離した状態で、四辺形の四隅に位置する前記主柱材の基礎部同士を結合したH形鋼からなる水平材と、
前記水平材の端部の上面と前記主柱材の側面をボルト接続する箱状の上部コーナー金具と、
前記水平材の端部の下面と前記主柱材の側面をボルト接続する箱状の下部コーナー金具と、を備え、
前記上部コーナー金具と前記下部コーナー金具は、前記水平材の端部を挟持するように対向配置されている鉄塔の補強構造。
A reinforcement structure of a steel tower that reinforces the lower structure of the square steel tower so that the concrete foundation that supports the main pillar material made of angle steel constituting at least the main body of the square steel tower does not displace,
In a state where the column part of the concrete foundation is peeled off, a horizontal member made of H-shaped steel in which the base parts of the main pillars located at the four corners of the quadrilateral are joined together,
A box-shaped upper corner fitting for bolting the upper surface of the end of the horizontal member and the side surface of the main pillar member;
A box-shaped lower corner fitting that bolts the lower surface of the end portion of the horizontal member and the side surface of the main pillar member,
The upper corner metal fitting and the lower corner metal fitting are reinforcing structures of a steel tower that are arranged to face each other so as to sandwich an end portion of the horizontal member.
前記上部コーナー金具は、
一片が前記水平材の端部の上面に当接し、他片が前記主柱材の側面に当接する第1アングル部材と、
前記第1アングル部材の端部に対向配置され、当該第1アングル部材の内壁に溶接された一対の板状の第1補強リブ部材と、を有する請求項1記載の鉄塔の補強構造。
The upper corner bracket is
A first angle member in which one piece comes into contact with the upper surface of the end portion of the horizontal member and the other piece comes into contact with a side surface of the main pillar material;
The reinforcement structure of the steel tower of Claim 1 which has a pair of plate-shaped 1st reinforcement rib member arrange | positioned facing the edge part of the said 1st angle member, and welded to the inner wall of the said 1st angle member.
前記第1補強リブ部材は、前記第1アングル部材の一片に溶接される一辺と、前記第1アングル部材の他片に溶接される他辺と、前記一辺と前記他片に対向する斜辺と、を有する直角三角形状の板部材で構成されている請求項2記載の鉄塔の補強構造。   The first reinforcing rib member has one side welded to one piece of the first angle member, the other side welded to the other piece of the first angle member, the one side and a hypotenuse opposite to the other piece, The steel tower reinforcement structure according to claim 2, comprising a right-angled triangular plate member. 前記下部コーナー金具は、
一片が前記水平材の端部の下面に当接し、他片が前記主柱材の側面に当接する第2アングル部材と、
前記第2アングル部材の端部に対向配置され、当該第2アングル部材の内壁に溶接された一対の板状の第2補強リブ部材と、を有する請求項1又は2記載の鉄塔の補強構造。
The lower corner bracket is
A second angle member in which one piece comes into contact with the lower surface of the end portion of the horizontal member and the other piece comes into contact with the side surface of the main pillar material;
The steel tower reinforcement structure according to claim 1, further comprising: a pair of plate-like second reinforcing rib members that are arranged to face an end portion of the second angle member and are welded to an inner wall of the second angle member.
前記第2補強リブ部材は、前記第2アングル部材の一片に溶接される一辺と、前記第2アングル部材の他片に溶接される他辺と、前記一辺と前記他片に対向する斜辺と、を有する直角三角形状の板部材で構成されている請求項4記載の鉄塔の補強構造。   The second reinforcing rib member has one side welded to one piece of the second angle member, the other side welded to the other piece of the second angle member, the one side and a hypotenuse opposite to the other piece, The steel tower reinforcement structure according to claim 4, wherein the steel tower has a right triangle plate member.
JP2012235095A 2012-10-24 2012-10-24 Steel tower reinforcement structure Active JP6012398B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012235095A JP6012398B2 (en) 2012-10-24 2012-10-24 Steel tower reinforcement structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012235095A JP6012398B2 (en) 2012-10-24 2012-10-24 Steel tower reinforcement structure

Publications (2)

Publication Number Publication Date
JP2014084653A JP2014084653A (en) 2014-05-12
JP6012398B2 true JP6012398B2 (en) 2016-10-25

Family

ID=50788000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012235095A Active JP6012398B2 (en) 2012-10-24 2012-10-24 Steel tower reinforcement structure

Country Status (1)

Country Link
JP (1) JP6012398B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104295146B (en) * 2014-10-18 2016-06-08 福州万山电力咨询有限公司 110kV line project improvement corner tower composition structure
KR102005848B1 (en) * 2019-01-21 2019-10-08 진종신 Earthquake resistant tower for power transmission line

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10331437A (en) * 1997-05-28 1998-12-15 Taisei Corp Earthquake resistant reinforcing construction for existing beam and column
JP4052479B2 (en) * 2004-06-30 2008-02-27 株式会社住金システム建築 Steel structure column / beam joint structure
JP2010024747A (en) * 2008-07-22 2010-02-04 Tokyo Electric Power Co Inc:The Buckling reinforcement method for angle steel member and reinforcement implement used in the method
JP5679305B2 (en) * 2011-02-17 2015-03-04 東京電力株式会社 Reinforcement method for power transmission towers
JP5951375B2 (en) * 2012-07-09 2016-07-13 中国電力株式会社 Steel tower reinforcement structure

Also Published As

Publication number Publication date
JP2014084653A (en) 2014-05-12

Similar Documents

Publication Publication Date Title
JP2010133229A (en) Earthquake-resisting wall, building, and construction method of the earthquake-resisting wall
KR100722809B1 (en) Reinforced beam for stiffness, the construction structure and bridge construction method using the same
JP4861640B2 (en) How to make a steel structure
JP6012398B2 (en) Steel tower reinforcement structure
JP5951375B2 (en) Steel tower reinforcement structure
JP6255220B2 (en) Positioning member and construction method
JP2016216905A (en) Column-beam frame
JP5967642B2 (en) Building reinforcement structure
JP4151693B2 (en) Installation structure of studs in existing building
JP2016050377A (en) Joint structure between column base part and steel beam
JP2017172308A (en) Integrated foundation and integrated foundation construction method
JP7156347B2 (en) Joint structure of steel wall and reinforced concrete floor slab
JP2014101654A (en) Reinforcement structure of concrete and reinforcement method
JP7219529B2 (en) Combination structure of steel materials, shoring structure and construction method
JP5159942B1 (en) Column base of building
JP5374275B2 (en) Reinforcing panel, column reinforcing structure and reinforcing method
JP5143526B2 (en) Building column base structure
JP6576204B2 (en) Slab construction method
JP6646959B2 (en) Column and beam frame and its construction method
JP6752006B2 (en) Fixed structure of building unit and unit building
JP4290634B2 (en) Reinforcing method and reinforcing device for reinforced concrete bar member
JP4215659B2 (en) Reinforcing method for reinforced concrete members
JP5461627B2 (en) Steel tower reinforcement method
JP6381096B2 (en) Construction structure, gantry and turbine generator facility, and method for manufacturing construction structure
JP6071475B2 (en) Joint formation method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20151014

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160826

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: 20160906

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160920

R150 Certificate of patent or registration of utility model

Ref document number: 6012398

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250