JP2002357018A - Method for reinforcing cylindrical erected article - Google Patents
Method for reinforcing cylindrical erected articleInfo
- Publication number
- JP2002357018A JP2002357018A JP2001167825A JP2001167825A JP2002357018A JP 2002357018 A JP2002357018 A JP 2002357018A JP 2001167825 A JP2001167825 A JP 2001167825A JP 2001167825 A JP2001167825 A JP 2001167825A JP 2002357018 A JP2002357018 A JP 2002357018A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing
- annular
- tubular
- cavity
- filler
- 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.)
- Ceased
Links
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電柱や水銀灯柱な
ど、内部が空洞部となった筒状立設物の補強方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reinforcing a tubular standing article having a hollow inside, such as a utility pole or a mercury lamp pole.
【０００２】[0002]
【従来の技術】電柱は最近では主として内部が空洞のコ
ンクリートポールで形成されたものが一般的であり、下
端部を２．５ｍ程度地下に埋めこんだ状態で、道路など
地面に立設されている。そしてこのように地面に立設さ
れた既存の電柱の耐震性能を向上させることなどを目的
として、補強をすることが行なわれている。2. Description of the Related Art In recent years, electric poles are generally formed mainly of hollow concrete poles, and are generally erected on roads or other grounds with their lower ends buried about 2.5 m underground. I have. In order to improve the seismic performance of the existing electric poles erected on the ground in this way, reinforcement is being performed.
【０００３】電柱を耐震補強する場合、電柱の補強は地
面の付近の部分に行なう必要があり、例えば地下２．５
ｍから地上２ｍの間の部分で電柱に補強を施すことが行
なわれている。そして電柱を補強するにあたって従来
は、電柱の周囲の地面を掘削し、電柱の地下から地上に
至る部分の外周にカーボンファイバーを巻き付け、さら
にこの外周にエポキシ樹脂を塗布して固めることによっ
て行なわれている。In order to reinforce an electric pole, it is necessary to reinforce the electric pole in a portion near the ground, for example, underground 2.5
The power pole is reinforced at a position between m and 2 m above the ground. In order to reinforce the utility pole, the conventional practice is to excavate the ground around the utility pole, wrap carbon fiber around the periphery of the utility pole from the basement to the ground, and then apply epoxy resin to the outer periphery and solidify it. I have.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、地面を
掘削するには土木作業などの手間が必要になって、工事
が大掛かりになるという問題があり、また電柱の近くに
側溝、マンホール、歩道、消火栓等の既存設置物がある
場合は掘削をすることができず、工事を行なうことがで
きないという問題があった。また、雨が降っているとき
や、地面を掘削して水が出たときには、水分の作用でエ
ポキシ樹脂が硬化不良を起すおそれがあり、このときも
工事を行なうことが困難になるものであった。However, the excavation of the ground requires a lot of work such as civil engineering work, which requires a large amount of work, and also has a problem that a gutter, a manhole, a sidewalk, and a fire hydrant are located near a power pole. However, there is a problem that excavation cannot be performed when there is an existing installation such as the above, and construction cannot be performed. Also, when it is raining or when the ground is excavated and water comes out, the effect of moisture may cause the epoxy resin to have poor curing, making it difficult to carry out construction work even in this case. Was.
【０００５】これらの問題は、電柱に限らず、地面に立
設された筒状立設物を補強する場合の全般にいえるもの
である。[0005] These problems are not limited to telephone poles, but can be generally applied to the case of reinforcing a tubular upright standing on the ground.
【０００６】本発明は上記の点に鑑みてなされたもので
あり、地面を掘削したりする必要なく、内部の空洞部を
利用して高い補強効果で補強を行なうことができる筒状
立設物の補強方法を提供することを目的とするものであ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has a cylindrical upright that can be reinforced with a high reinforcing effect by utilizing an internal cavity without having to excavate the ground. It is an object of the present invention to provide a reinforcing method of the above.
【０００７】[0007]
【課題を解決するための手段】本発明の請求項１に係る
筒状立設物の補強方法は、内部が空洞部１となった筒状
立設物２を補強するにあたって、圧縮復元性を有する複
数の環状体３を所定間隔で配置すると共に環状体３の周
方向に沿って配置した複数本の補強筋４を各環状体３間
に架け渡して取り付けることによって補強体５を形成
し、環状体３を圧縮させることによって複数本の補強筋
４を束ねた状態で、筒状立設物２の側面に設けられた作
業用穴６から内部の空洞部１内に補強体５を挿し入れ、
空洞部１内で環状体３を環状に復元させることによって
補強体５を広げた状態で、空洞部１内に液状の充填材７
を注入し、補強体５を埋入させた状態で充填材７を固化
させることを特徴とするものである。According to a first aspect of the present invention, there is provided a method of reinforcing a tubular upright, wherein the tubular upright having a hollow portion therein is reinforced by a compression restoring property. A plurality of annular bodies 3 are arranged at predetermined intervals, and a plurality of reinforcing bars 4 arranged along the circumferential direction of the annular body 3 are attached to each annular body 3 by being laid over the annular bodies 3 to form a reinforcing body 5, In a state where the plurality of reinforcing bars 4 are bundled by compressing the annular body 3, the reinforcing body 5 is inserted into the internal cavity 1 from the working hole 6 provided on the side surface of the tubular standing object 2. ,
In a state in which the reinforcing member 5 is expanded by restoring the annular body 3 to an annular shape in the hollow portion 1, the liquid filler 7 is filled in the hollow portion 1.
Is injected, and the filler 7 is solidified in a state in which the reinforcing member 5 is embedded.
【０００８】また請求項２の発明は、請求項１におい
て、複数の環状体３のうち少なくとも一つに、両端部が
環状体３よりも外方へ突出するスペーサ筋８を取り付
け、筒状立設物２の空洞部１内に補強体５を挿し入れて
広げた際に、スペーサ筋８の端部を空洞部１の内面に対
向配置させるようにしたことを特徴とするものである。According to a second aspect of the present invention, in the first aspect, at least one of the plurality of annular bodies 3 is provided with a spacer streak 8 whose both ends protrude outwardly from the annular body 3. When the reinforcing member 5 is inserted into the cavity 1 of the object 2 and spread, the ends of the spacer streaks 8 are arranged to face the inner surface of the cavity 1.
【０００９】また請求項３の発明は、請求項１又は２に
おいて、筒状立設物２が地面に立設された電柱２ａであ
り、筒状立設物２に設けられた作業用穴６が電柱に既設
されているアース線用穴６ａであることを特徴とするも
のである。According to a third aspect of the present invention, in accordance with the first or second aspect, the tubular uprights 2 are utility poles 2a standing on the ground, and the working holes 6 provided in the tubular uprights 2 are provided. Is a ground wire hole 6a already provided in the telephone pole.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。Embodiments of the present invention will be described below.
【００１１】図４は本発明で用いる補強体５の実施の形
態の一例を示すものであり、円形環状に形成した環状体
３を複数個、例えば３０ｃｍ程度の所定の一定間隔で略
平行に配置し、また直線状の補強筋４を複数本、環状体
３にその周方向に沿って所定の一定間隔で相互に略平行
に配置すると共に、これらの各補強筋４を各環状体３に
架け渡し、そして各環状体３と各補強筋４とを結合する
ことによって、補強体５を組み立てるようにしてある。FIG. 4 shows an example of an embodiment of a reinforcing member 5 used in the present invention. A plurality of annular members 3 formed in a circular ring are arranged substantially in parallel at predetermined constant intervals of, for example, about 30 cm. In addition, a plurality of linear reinforcing bars 4 are arranged on the annular body 3 at a predetermined constant interval along the circumferential direction thereof and are substantially parallel to each other. The reinforcement body 5 is assembled by connecting the respective annular bodies 3 and the reinforcement bars 4 to each other.
【００１２】また複数個の環状体３のうち、一部の環状
体３にはスペーサ筋８が取り付けてある。スペーサ筋８
は環状体３の外径より長い直線寸法に形成してあり、一
対のスペーサ筋８を十字形にクロスさせ、各スペーサ筋
８の両端部を環状体３の外周から等寸法で突出させた状
態で環状体３の上面に配置してある。[0012] A spacer streak 8 is attached to some of the plurality of annular members 3. Spacer streaks 8
Is formed in a linear dimension longer than the outer diameter of the annular body 3, a pair of spacer streaks 8 are crossed in a cross shape, and both end portions of each spacer streaks 8 project from the outer periphery of the annular body 3 with equal dimensions. And is disposed on the upper surface of the annular body 3.
【００１３】上記のように組み立てて作製される補強体
５にあって、環状体３は力を加えて圧縮するように変形
させても、力を解除すると元の環状形に復元する弾性を
有する材料で形成されるものであり、例えばステンレス
ワイヤーを用いることができ、これを環状に丸めて端部
同士をアルミニウム結束チューブなどの結束具１５で結
合することによって、環状体３を形成するようにしてあ
る。スペーサ筋８も同様にステンレスワイヤーなどで形
成することができ、同様な結束具１５で環状体３に結合
するようにしてある。これらのステンレスワイヤーとし
ては、直径２〜３ｍｍ程度のものを用いるのが好まし
く、アルミニウム結束チューブとしては直径５ｍｍ程度
のものを用いるのが好ましい。In the reinforcing member 5 fabricated by assembling as described above, the annular body 3 has the elasticity to restore the original annular shape when the force is released, even if the annular body 3 is deformed to compress by applying force. For example, a stainless steel wire can be used, and this is rounded into an annular shape and its ends are joined together with a tying member 15 such as an aluminum tying tube so that the annular body 3 is formed. It is. The spacer streaks 8 can also be formed of a stainless wire or the like, and are connected to the annular body 3 with a similar tying tool 15. It is preferable to use a stainless steel wire having a diameter of about 2 to 3 mm, and it is preferable to use an aluminum binding tube having a diameter of about 5 mm.
【００１４】また、補強筋４は、引っ張り強度が高いピ
アノ線などで形成してあり、環状体３をステンレス素線
１６を撚り合せたステンレスワイヤーで形成している場
合には、図５に示すように撚り合せた素線１６間に補強
筋４を通し、素線１６の撚り戻し力によって環状体３に
補強筋４を保持して結合するようにしてある。ピアノ線
は、日本工業規格品（ＪＩＳ Ｇ ３５２２）の「ＳＷ
Ｐ−Ｂ−ＢＷ」や「ＳＷＰ−Ｂ−ＢＷ」などを用いるこ
とができ、例えば直径２ｍｍφ、長さ２ｍ〜４ｍ以上の
ものを用いることができる。The reinforcing bar 4 is formed of a piano wire or the like having a high tensile strength. When the annular body 3 is formed of a stainless wire in which a stainless steel wire 16 is twisted, as shown in FIG. The reinforcing bar 4 is passed between the twisted strands 16 to hold and join the reinforcing strip 4 to the annular body 3 by the untwisting force of the strand 16. Piano wire is “SW” of Japanese Industrial Standard (JIS G 3522).
"P-B-BW" and "SWP-B-BW" can be used. For example, those having a diameter of 2 mm and a length of 2 m to 4 m or more can be used.
【００１５】尚、補強体５の環状体３、補強筋４、スペ
ーサ筋８の材料としては、上記のものに限定されるもの
ではなく、金属材の他に、樹脂材や繊維材など、各種の
ものを用いることが可能である。The materials of the annular body 3, the reinforcing bars 4, and the spacer bars 8 of the reinforcing member 5 are not limited to those described above. Can be used.
【００１６】次に、筒状立設物２として、上部ほど径が
小さくなる円筒状のコンクリートポールで形成された電
柱２ａを用い、この電柱２ａを耐震補強する施工を説明
する。Next, a description will be given of a construction in which an electric pole 2a formed of a cylindrical concrete pole whose diameter becomes smaller toward the upper portion is used as the cylindrical upright 2, and the electric pole 2a is reinforced by earthquake resistance.
【００１７】電柱２ａは下端部を地面２０に埋め込んだ
状態で立設されており、電柱２ａには一般に、アース線
を通すための穴６ａが予め設けられている。また、上記
の補強体５としては、環状体３の外径を電柱２ａ内の空
洞部１の内径よりも例えば２〜５ｃｍ程度小さく形成
し、スペーサ筋８の長さを空洞部１の内径よりも例えば
０．５〜２ｃｍ程度小さく形成したものを用いる。そし
てまず、電柱２ａの側面に設けられているアース線用穴
６ａを作業用穴６として利用して、アース線用穴６ａか
ら上記の補強体５を電柱２ａ内の空洞部１に挿し入れ
る。The electric pole 2a is erected with its lower end buried in the ground 20, and the electric pole 2a is generally provided with a hole 6a through which a ground wire passes. Further, as the reinforcing member 5, the outer diameter of the annular body 3 is formed to be smaller than the inner diameter of the hollow portion 1 in the electric pole 2 a by, for example, about 2 to 5 cm, and the length of the spacer streaks 8 is smaller than the inner diameter of the hollow portion 1. Also, for example, one formed smaller by about 0.5 to 2 cm is used. First, using the ground wire hole 6a provided on the side surface of the power pole 2a as the work hole 6, the reinforcing member 5 is inserted into the hollow portion 1 in the power pole 2a through the ground wire hole 6a.
【００１８】このとき、アース線用穴６ａは２５ｍｍ×
４５ｍｍ程度の大きさであり、アース線用穴６ａの径よ
りも径が大きい補強体５はそのままではアース線用穴６
ａに通すことはできない。そこで、図５に示すように、
環状体３を圧縮変形させることによって複数本の補強筋
４を束ね、補強体５の全体の径をアース線用穴６ａより
も小さくする。そしてこのように補強筋４を束ねた状態
で補強体５を図１（ａ）に示すようにアース線用穴６ａ
を通して空洞部１内に挿し入れる。空洞部１内は補強体
５の補強筋４の長さに比べて内径が小さいが、補強筋４
を弾性的に撓ませながら、補強体５を空洞部１内に挿し
入れることができる。尚、補強筋４を束ねた状態で補強
体５をアース線用穴６ａから空洞部１内に挿し入れるに
あたって、補強筋４の先端部を曲げておくと、この曲げ
た部分で滑らせるようにして補強体５を空洞部１内にス
ムーズに挿し入れることができるものである。At this time, the ground wire hole 6a is 25 mm ×
The reinforcing member 5 having a size of about 45 mm and having a diameter larger than the diameter of the ground wire hole 6a is left as it is.
It cannot be passed through a. Therefore, as shown in FIG.
By compressing and deforming the annular body 3, the plurality of reinforcing bars 4 are bundled, and the entire diameter of the reinforcing body 5 is made smaller than the ground wire hole 6 a. With the reinforcing bars 4 bundled in this way, the reinforcing member 5 is connected to the ground wire hole 6a as shown in FIG.
Through the cavity 1. Although the inside diameter of the hollow portion 1 is smaller than the length of the reinforcing bar 4 of the reinforcing body 5,
Can be inserted into the hollow portion 1 while elastically bending. When the reinforcing member 5 is inserted into the hollow portion 1 through the ground wire hole 6a in a state where the reinforcing bars 4 are bundled, the tip of the reinforcing bar 4 is bent so that the bent portion slides. Thus, the reinforcing member 5 can be smoothly inserted into the hollow portion 1.
【００１９】このように補強体５を空洞部１内に挿し入
れると、補強筋４を束ねる力が解除されるので、環状体
３は圧縮変形された状態からその弾性力によって元の環
形状に復元し、図１（ｂ）に示すように補強筋４は束ね
られた状態から元の状態に広がり、空洞部１の下部内に
配置される。このとき、補強体５はスペーサ筋８の端部
が空洞部１の内面に対向した状態で空洞部１内に配置さ
れるため、補強筋４が空洞部１の内面に接するようなこ
とがないように、補強体５を空洞部１内で位置決めする
ことができるものであり、各補強筋４を空洞部１の内周
と略同心円に配置することができるものである。When the reinforcing member 5 is inserted into the hollow portion 1 as described above, the force for bundling the reinforcing bars 4 is released, so that the annular body 3 returns from its compressed and deformed state to its original ring shape by its elastic force. After being restored, the reinforcing bars 4 are expanded from the bundled state to the original state as shown in FIG. At this time, the reinforcing member 5 is disposed in the hollow portion 1 with the end of the spacer streaks 8 facing the inner surface of the hollow portion 1, so that the reinforcing bars 4 do not contact the inner surface of the hollow portion 1. As described above, the reinforcing member 5 can be positioned in the hollow portion 1, and the reinforcing bars 4 can be arranged substantially concentrically with the inner periphery of the hollow portion 1.
【００２０】このようにして電柱２ａの地下の部分から
地上の部分に至る範囲で空洞部１内に補強体５を配置し
た後、電柱２の側面に設けられているアース線用穴６ａ
を作業用穴６として利用して、空洞部１内に液状の充填
材７を注入する。この充填材７としては、セメントと樹
脂とをプレミックスしたプレミックスセメントなどを用
いることができる。図２は充填材７を注入する状態を示
すものであり、ポンプ１７に供給ホース１８で接続した
ノズル１９をアース線用穴６ａから空洞部１内に差し入
れ、ポンプ１７を作動させて充填材７を空洞部１内に注
入することができる。このとき、ノズル１９にはトレミ
ー管などのホース２１を接続して、このホース２１の先
端を空洞部１の下端部にまで差し込んであり、ホース２
１の先端から充填材７を吐出させて空洞部１の下部から
充填するようにしてある。このように空洞部１の下部か
ら充填することによって、充填材７に含まれている骨材
の分離を防ぐことができると共にエアーが混入すること
を防ぐことができるものである。そして充填材７は空洞
部１内に配置した補強体５の上端の位置まで注入するも
のであり、空洞部１内でこの充填材７を養生硬化させて
固化させるものである。尚、充填材７としては上記のよ
うなプレミックスセメントに限定されるものではなく、
補強効果を有するものであれば任意の材料を用いること
ができるものである。After arranging the reinforcing member 5 in the cavity 1 in the range from the underground portion to the above-ground portion of the utility pole 2a in this manner, the ground wire hole 6a provided on the side surface of the utility pole 2 is provided.
Is used as a working hole 6 to inject a liquid filler 7 into the cavity 1. As the filler 7, a premixed cement obtained by premixing a cement and a resin can be used. FIG. 2 shows a state in which the filler 7 is injected. A nozzle 19 connected to a pump 17 by a supply hose 18 is inserted into the cavity 1 through the hole 6a for the ground wire, and the pump 17 is operated to operate the filler 7. Can be injected into the cavity 1. At this time, a hose 21 such as a tremy tube is connected to the nozzle 19, and the tip of the hose 21 is inserted into the lower end of the hollow portion 1.
The filler 7 is discharged from the tip of the cavity 1 and is filled from the lower part of the cavity 1. By filling from the lower part of the hollow portion 1 in this way, it is possible to prevent the separation of the aggregate contained in the filler 7 and to prevent the air from being mixed. The filler 7 is injected to the position of the upper end of the reinforcing member 5 arranged in the cavity 1, and is cured and hardened in the cavity 1 to be solidified. Note that the filler 7 is not limited to the premix cement as described above,
Any material having a reinforcing effect can be used.
【００２１】そして図３に示すように、電柱２ａの地下
の部分から地上の部分に至る範囲で空洞部１内に充填材
７を充填して固化させることによって、充填材７で電柱
２ａを補強することができるものであり、しかもこの固
化した充填材７には補強体５が埋入されていて強化され
ているので、補強の効果を高く得ることができるもので
ある。特に、補強体５の補強筋４によって固化した充填
材７に高い曲げ強度を付与することができ、地震に対し
て有効な高い耐震補強を行なうことができるものであ
る。ここで、補強体５の補強筋４の両端を屈曲しておく
ことによって、この屈曲部が固化した充填材７内に抱き
込まれ、補強筋４が固化した充填材７から抜けるような
ことがなくなり、補強筋４による補強効果をより高く得
ることができるものである。As shown in FIG. 3, the electric pole 2a is reinforced with the filler 7 by filling and solidifying the filler 7 in the cavity 1 in a range from the underground part to the above-ground part of the electric pole 2a. In addition, since the solidified filler 7 is reinforced by embedding the reinforcing member 5 therein, a high reinforcing effect can be obtained. In particular, the filler 7 solidified by the reinforcing bars 4 of the reinforcing member 5 can be provided with high bending strength, and effective high earthquake-resistant reinforcement against earthquakes can be performed. Here, by bending both ends of the reinforcing bars 4 of the reinforcing member 5, the bent portions may be embraced in the solidified filler 7, and the reinforcing bars 4 may come off from the solidified filler 7. Thus, the reinforcing effect by the reinforcing bar 4 can be more enhanced.
【００２２】このように電柱２ａの補強は内部の空洞部
１を利用して行なうことができるものであり、従来のよ
うに電柱２ａの周囲の地面を掘削するような必要がなく
なり、電柱２ａの近くに既存設置物があっても何ら支障
なく補強の工事を行なうことができるものであり、また
雨や地下水の影響がない電柱２ａの内部で補強を行なう
ことができるため、これらによって工事が困難になるよ
うなこともなくなるものである。As described above, the electric pole 2a can be reinforced by utilizing the internal hollow portion 1, so that it is not necessary to dig the ground around the electric pole 2a as in the related art, and the electric pole 2a is not required. Even if there is an existing installation nearby, reinforcement work can be performed without any trouble, and reinforcement can be performed inside the utility pole 2a which is not affected by rain or groundwater. Is no longer possible.
【００２３】尚、上記の電柱２ａは電力線を架設するも
のだけでなく、電話線を架設するものなどの全般を意味
するものである。また上記では筒状立設物２として電柱
２ａを用いた実施の形態について説明したが、本発明は
これのみに限定されるものではなく、筒状立設物２とし
て水銀灯柱などを用いることもできるものであり、本発
明は地面に立設され内部に空洞部を有する筒状の構造物
を補強する際に制限されることなく適用されるものであ
る。また、作業用穴６として、電柱２ａのアース線用穴
６ａのように既存のものを利用することができない場合
には、筒状立設物２の側面にドリルなどで穴あけ加工を
して作業用穴６を設けるようにすればよい。The power pole 2a means not only a power line but also a telephone line. Although the embodiment using the electric pole 2a as the cylindrical upright 2 has been described above, the present invention is not limited to this, and a mercury lamp pole or the like may be used as the cylindrical upright 2. The present invention can be applied without limitation when reinforcing a tubular structure that is erected on the ground and has a cavity inside. When an existing hole such as the ground wire hole 6a of the utility pole 2a cannot be used as the work hole 6, the work is performed by drilling the side surface of the tubular upright 2 with a drill or the like. The holes 6 may be provided.
【００２４】[0024]
【発明の効果】上記のように本発明の請求項１に係る筒
状立設物の補強方法は、内部が空洞部となった筒状立設
物を補強するにあたって、圧縮復元性を有する複数の環
状体を所定間隔で配置すると共に環状体の周方向に沿っ
て配置した複数本の補強筋を各環状体間に架け渡して取
り付けることによって補強体を形成し、環状体を圧縮さ
せることによって複数本の補強筋を束ねた状態で、筒状
立設物の側面に設けられた作業用穴から内部の空洞部内
に補強体を挿し入れ、空洞部内で環状体を環状に復元さ
せることによって補強体を広げた状態で、空洞部内に液
状の充填材を注入し、補強体を埋入させた状態で充填材
を固化させるようにしたので、空洞部内を利用して充填
材によって筒状立設物の補強をすることができ、地面を
掘削したりする必要がなくなると共に雨や地下水の影響
を受けることなく補強の作業をすることができるもので
ある。しかも、筒状立設物の作業用穴が小さくても束ね
た状態で補強体を空洞部内に挿し入れて、充填材に補強
体を埋入させることができるものであり、充填材を補強
体の補強筋で強化して曲げ強度を高めることができ、高
い耐震補強を行なうことができるものである。As described above, in the method for reinforcing a tubular upright according to the first aspect of the present invention, when reinforcing a tubular upright having a hollow inside, a plurality of pieces having a compression restoring property are provided. By arranging the annular bodies at predetermined intervals and by attaching a plurality of reinforcing bars arranged along the circumferential direction of the annular body between the annular bodies to form a reinforcing body, and compressing the annular body With a plurality of reinforcing bars bundled together, insert a reinforcing body into the internal cavity from the work hole provided on the side of the tubular upright, and reinforce the annular body in the cavity to restore it to an annular shape With the body expanded, a liquid filler is injected into the cavity, and the filler is solidified with the reinforcing body embedded, so the tubular material is erected using the filler inside the cavity. Can be reinforced, and the ground must be excavated. It is those that can be the work of reinforcement without being affected by the rain and groundwater along with the disappears. In addition, even if the work hole of the cylindrical upright is small, the reinforcing body can be inserted into the hollow portion in a bundled state, and the reinforcing body can be embedded in the filling material. It is possible to enhance the bending strength by strengthening with the reinforcing bars of the above, and to perform high earthquake-resistant reinforcement.
【００２５】また請求項２の発明は、複数の環状体のう
ち少なくとも一つに、両端部が環状体よりも外方へ突出
するスペーサ筋を取り付け、筒状立設物の空洞部内に補
強体を挿し入れて広げた際に、スペーサ筋の端部を空洞
部の内面に対向配置させるようにしたので、スペーサ筋
で位置決めした状態で補強体を空洞部内に配置すること
ができ、補強筋を偏ることなく充填材内に埋入させて、
充填材を補強筋で均一に効率高く強化することができる
ものである。According to a second aspect of the present invention, at least one of the plurality of annular bodies is provided with a spacer streak whose both ends protrude outward from the annular body, and a reinforcing member is provided in the hollow portion of the cylindrical upright. When inserting and expanding, the end of the spacer streak is arranged to face the inner surface of the cavity, so the reinforcing body can be placed in the cavity with the positioning with the spacer streak, Embed in the filler without bias,
The filler can be uniformly and efficiently reinforced with reinforcing bars.
【００２６】また請求項３の発明は、筒状立設物が地面
に立設された電柱であり、筒状立設物に設けられた作業
用穴が電柱に既設されているアース線用穴であるので、
電柱に既設されているアース線用穴をそのまま利用し
て、穴あけ加工などを行なう必要なく、補強体を空洞部
に挿し入れる作業や充填材を空洞部に注入する作業を行
なうことができるものである。According to a third aspect of the present invention, there is provided an electric pole having a tubular upright standing on the ground, and a work hole provided in the tubular upright is provided with a ground wire hole provided in the telephone pole. So that
By using the existing ground wire hole on the telephone pole as it is, it is possible to insert the reinforcing body into the cavity and inject the filler into the cavity without performing drilling etc. is there.
【図１】本発明の実施の形態の一例における作業の途中
の工程を示すものであり、（ａ），（ｂ）はそれぞれ一
部破断した斜視図である。FIGS. 1A and 1B show a process in the middle of an operation in an example of an embodiment of the present invention, and FIGS.
【図２】本発明の実施の形態の一例における作業の途中
の工程を示す一部破断した斜視図である。FIG. 2 is a partially broken perspective view showing a step in the middle of an operation in an example of an embodiment of the present invention.
【図３】本発明の実施の形態の一例における作業の最終
の工程を示す一部の断面図である。FIG. 3 is a partial cross-sectional view showing a final step of the operation in the example of the embodiment of the present invention.
【図４】同上に用いる補強体の一例を示す斜視図であ
る。FIG. 4 is a perspective view showing an example of a reinforcing body used in the above.
【図５】同上の補強体の一部を示す斜視図である。FIG. 5 is a perspective view showing a part of the reinforcing body of the above.
【図６】同上の補強体を束ねた状態を示す斜視図であ
る。FIG. 6 is a perspective view showing a state in which the above reinforcing members are bundled.
１ 空洞部 ２ 筒状立設体 ３ 環状体 ４ 補強筋 ５ 補強体 ６ 作業用穴 ７ 充填材 ８ スペーサ筋 DESCRIPTION OF SYMBOLS 1 Cavity part 2 Cylindrical standing body 3 Annular body 4 Reinforcing bar 5 Reinforcing body 6 Working hole 7 Filler 8 Spacer bar
Claims (3)
するにあたって、圧縮復元性を有する複数の環状体を所
定間隔で配置すると共に環状体の周方向に沿って配置し
た複数本の補強筋を各環状体間に架け渡して取り付ける
ことによって補強体を形成し、環状体を圧縮させること
によって複数本の補強筋を束ねた状態で、筒状立設物の
側面に設けられた作業用穴から内部の空洞部内に補強体
を挿し入れ、空洞部内で環状体を環状に復元させること
によって補強体を広げた状態で、空洞部内に液状の充填
材を注入し、補強体を埋入させた状態で充填材を固化さ
せることを特徴とする筒状立設物の補強方法。In order to reinforce a cylindrical upright having a hollow inside, a plurality of annular bodies having a compression restoring property are arranged at a predetermined interval and arranged along a circumferential direction of the annular body. A reinforcing body is formed by bridging and attaching the reinforcing bars between the annular bodies, and a plurality of reinforcing bars are bundled by compressing the annular body, and the reinforcing bars are provided on the side surface of the tubular upright. Insert the reinforcement into the internal cavity from the work hole and restore the ring to an annular shape inside the cavity, then inject the liquid filler into the cavity and fill the reinforcement with the reinforcement expanded. A method for reinforcing a tubular standing object, comprising solidifying a filler in a state where the filler is inserted.
両端部が環状体よりも外方へ突出するスペーサ筋を取り
付け、筒状立設物の空洞部内に補強体を挿し入れて広げ
た際に、スペーサ筋の端部を空洞部の内面に対向配置さ
せるようにしたことを特徴とする請求項１に記載の筒状
立設物の補強方法。2. The method according to claim 2, wherein at least one of the plurality of annular bodies has
Spacers with both ends protruding outward from the annular body are attached, and when the reinforcing body is inserted and expanded in the hollow part of the tubular standing object, the end of the spacer is opposed to the inner surface of the hollow part 2. The method for reinforcing a tubular standing object according to claim 1, wherein the reinforcing member is provided.
り、筒状立設物に設けられた作業用穴が電柱に既設され
ているアース線用穴であることを特徴とする請求項１又
は２に記載の筒状立設物の補強方法。3. The electric vehicle according to claim 1, wherein the tubular upright is an electric pole erected on the ground, and the work hole provided in the tubular upright is an earth wire hole already provided in the electric pole. The method for reinforcing a tubular standing object according to claim 1 or 2, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001167825A JP2002357018A (en) | 2001-06-04 | 2001-06-04 | Method for reinforcing cylindrical erected article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001167825A JP2002357018A (en) | 2001-06-04 | 2001-06-04 | Method for reinforcing cylindrical erected article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002357018A true JP2002357018A (en) | 2002-12-13 |
Family
ID=19010154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001167825A Ceased JP2002357018A (en) | 2001-06-04 | 2001-06-04 | Method for reinforcing cylindrical erected article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002357018A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6890461B2 (en) | 2002-02-15 | 2005-05-10 | Ntt Infrastructure Network Corporation | Method of reinforcing concrete electric pole |
| JP2005163336A (en) * | 2003-12-01 | 2005-06-23 | Ntt Infranet Co Ltd | Steel pipe column reinforcing method and auxiliary tool for arranging reinforcement |
| JP2008285995A (en) * | 2006-06-29 | 2008-11-27 | Chika Hishida | Method for placing mortar into hollow concrete pole |
| JP2011157769A (en) * | 2010-02-02 | 2011-08-18 | Hiroyasu Minayoshi | Hollow columnar reinforcing structure and hollow columnar reinforcing method using the reinforcing structure |
| JP2013053424A (en) * | 2011-09-01 | 2013-03-21 | Taisei Corp | Towering structure |
| JP2017223100A (en) * | 2016-06-18 | 2017-12-21 | 株式会社 新倉技研 | Reinforcement method of column body and column body covered with covering resin material |
| JP2018109351A (en) * | 2018-04-12 | 2018-07-12 | 株式会社 新倉技研 | Reinforcement method of column body and column body covered with covering resin material |
| KR102294998B1 (en) * | 2021-05-06 | 2021-08-30 | (주)창조에스티 | strengthening method of old electric pole using step hole |
| KR102445920B1 (en) * | 2022-02-25 | 2022-09-21 | 홍민기 | A method of reinforcing a pole by supplying an injection into the pole for reinforcing a pole with a footrest bolt hole |
-
2001
- 2001-06-04 JP JP2001167825A patent/JP2002357018A/en not_active Ceased
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6890461B2 (en) | 2002-02-15 | 2005-05-10 | Ntt Infrastructure Network Corporation | Method of reinforcing concrete electric pole |
| US7343658B2 (en) | 2002-02-15 | 2008-03-18 | Ntt Infrastructure Network Corporation | Reinforcement member arrangement jig for concrete electric pole |
| JP2005163336A (en) * | 2003-12-01 | 2005-06-23 | Ntt Infranet Co Ltd | Steel pipe column reinforcing method and auxiliary tool for arranging reinforcement |
| JP2008285995A (en) * | 2006-06-29 | 2008-11-27 | Chika Hishida | Method for placing mortar into hollow concrete pole |
| JP2011157769A (en) * | 2010-02-02 | 2011-08-18 | Hiroyasu Minayoshi | Hollow columnar reinforcing structure and hollow columnar reinforcing method using the reinforcing structure |
| JP2013053424A (en) * | 2011-09-01 | 2013-03-21 | Taisei Corp | Towering structure |
| JP2017223100A (en) * | 2016-06-18 | 2017-12-21 | 株式会社 新倉技研 | Reinforcement method of column body and column body covered with covering resin material |
| JP2018109351A (en) * | 2018-04-12 | 2018-07-12 | 株式会社 新倉技研 | Reinforcement method of column body and column body covered with covering resin material |
| KR102294998B1 (en) * | 2021-05-06 | 2021-08-30 | (주)창조에스티 | strengthening method of old electric pole using step hole |
| KR102445920B1 (en) * | 2022-02-25 | 2022-09-21 | 홍민기 | A method of reinforcing a pole by supplying an injection into the pole for reinforcing a pole with a footrest bolt hole |
| WO2023163313A1 (en) * | 2022-02-25 | 2023-08-31 | 홍민기 | Telephone pole reinforcing method for supplying grouting material into telephone pole, having foothold bolt holes, in order to reinforce telephone pole |
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