JPH0380203B2 - - Google Patents
Info
- Publication number
- JPH0380203B2 JPH0380203B2 JP16935487A JP16935487A JPH0380203B2 JP H0380203 B2 JPH0380203 B2 JP H0380203B2 JP 16935487 A JP16935487 A JP 16935487A JP 16935487 A JP16935487 A JP 16935487A JP H0380203 B2 JPH0380203 B2 JP H0380203B2
- Authority
- JP
- Japan
- Prior art keywords
- bridge girder
- pull
- main tower
- diagonal cable
- fixing
- 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.)
- Expired
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は橋桁上にクレーンを設置せずに斜材
ケーブルの架設を行う、斜材橋における斜材ケー
ブルの架設方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for constructing stay cables in a stay bridge, in which the stay cables are installed without installing a crane on the bridge girder.
斜張橋の斜材ケーブルの架設は、主塔側では主
塔上に設置されたタワークレーンで斜材を吊り上
げ、ウインチにより定着管内へ引き込み、一方橋
桁側では橋桁上の移動式クレーンにより斜材を吊
り上げ、ジヤツキで定着管内へ引き込むという要
領で一般に行われているが、この方法では移動式
クレーンが橋桁上に大きなスペースを占めるため
橋桁本体の施工の進行に支障があり、また橋桁の
応力負担が大きい等の問題がある。
To install the cables of a cable-stayed bridge, on the main tower side, the cables are lifted up by a tower crane installed on the main tower, and then pulled into the anchorage pipe by a winch.On the other hand, on the bridge girder side, the cables are lifted up by a mobile crane on the bridge girder. This method is generally carried out by hoisting up the bridge and pulling it into the anchorage pipe with jacks, but with this method, the mobile crane occupies a large space on the bridge girder, which hinders the progress of construction of the bridge girder itself, and also reduces the stress burden on the bridge girder. There are problems such as large numbers.
この発明はこうした従来の移動式クレーンを用
いる方法の問題点を踏まえてなされたもので、ク
レーンに代えて斜材引き寄せのためのウインチを
用いることにより上記の問題点を解消しようとす
るものである。 This invention was made based on the problems of the conventional method using a mobile crane, and attempts to solve the above problems by using a winch for pulling diagonal members instead of the crane. .
本発明では従来主として橋桁上の斜材ケーブル
の定着鋼管との角度調節用に利用されていた移動
式クレーンに代え、ウインチを用いてこの操作を
行うことにより橋桁工事に支障のないスペースを
確保するとともに、橋桁の応力負担を軽減する。
In the present invention, instead of the mobile crane that was conventionally used mainly for adjusting the angle of the diagonal cable on the bridge girder with the anchoring steel pipe, a winch is used to perform this operation, thereby securing a space that does not interfere with bridge girder construction. At the same time, the stress burden on the bridge girders will be reduced.
このウインチは橋桁側の斜材ケーブルの定着の
際、斜材ケーブルを定着管側へ引き寄せると同時
に、斜材ケーブル端部の橋桁からの高さを確保
し、その定着管との角度を合わせるもので、橋桁
側ではこの角度調節後、斜材ケーブル端部の定着
具をジヤツキのチヤツクにより定着管内へ引き込
んでこれを橋桁に定着するという作業が行われ
る。 When anchoring the diagonal cable on the bridge girder side, this winch pulls the diagonal cable toward the anchoring tube, secures the height of the diagonal cable end from the bridge girder, and adjusts the angle with the anchoring tube. On the bridge girder side, after this angle adjustment, the fixing device at the end of the diagonal cable is pulled into the fixing tube by the chuck of a jack and is fixed to the bridge girder.
一方主塔側では主塔上のタワークレーンに横力
をかけないよう橋桁上の別のウインチで斜材ケー
ブルを主塔側へ引き寄せながらタワークレーンで
所定の定着管の高さまで吊り上げるとともに、主
塔上に設置された引き込み装置に接続された引き
込みワイアを定着管内を通して降下させ、これに
定着具を接続した後、引き込みワイアを引き上げ
て定着具を主塔に定着するという作業が橋桁側の
定着に先立つて行われる。 On the other hand, on the main tower side, another winch on the bridge girder is used to pull the diagonal cable toward the main tower so as not to apply lateral force to the tower crane on the main tower, and the tower crane lifts it to the specified anchorage pipe height. Anchoring on the bridge girder side involves lowering the pull-in wire connected to the pull-in device installed above through the anchoring pipe, connecting the anchor to it, then pulling up the pull-in wire and anchoring the anchor to the main tower. It is done in advance.
以下本発明を一実施例を示す図面に基づいて説
明する。
The present invention will be explained below based on the drawings showing one embodiment.
この発明は斜材ケーブルＣを主塔Ｔ上に設置さ
れるタワークレーン１と引き込み装置２及び橋桁
Ｇ上に設置される２個のウインチ３1，３2とを用
いて架設する方法である。 This invention is a method for constructing a diagonal cable C using a tower crane 1 installed on a main tower T, a pulling device 2, and two winches 3 1 and 3 2 installed on a bridge girder G.
第１図に従つて施工手順を説明する。 The construction procedure will be explained according to Figure 1.
斜材ケーブルＣは橋桁Ｇ上を走行するユニツト
車４上に載置された巻き戻し装置５に巻き付けら
れて橋桁Ｇ上に設置されており、両端部にはナツ
ト定着のための定着具ｃ，ｃが圧着されている。 The diagonal cable C is installed on the bridge girder G by being wound around a rewinding device 5 placed on a unit car 4 running on the bridge girder G, and at both ends there are fixing devices c, for fixing nuts. c is crimped.
まずこの斜材ケーブルＣの端部から定着管長
に、引き込み時の角度調節のための余裕長を加え
た距離の位置にタワークレーン１用の吊り治具１
ａを取り付けるとともに、ウインチ３1に接続す
るための引治具３1aを斜材ケーブルＣの中間部に
取り付け、斜材ケーブルＣを鉛直に吊り上げられ
るようウインチ３1でこれを主塔Ｔ側へ引き寄せ
ながらタワークレーン１で斜材ケーブルＣを主塔
Ｔに埋設されてある所定の定着管６1の高さまで
吊り上げる（）。斜材ケーブルＣの吊り上げ、
ウインチ３1による引き寄せと同時に、ユニツク
車４を橋桁Ｇの定着管６2側へ前進させる。 First, place the lifting jig 1 for the tower crane 1 at a distance from the end of the diagonal cable C to the length of the anchoring pipe plus an allowance for adjusting the angle when pulling in.
At the same time, attach a pulling jig 31a for connecting to the winch 31 to the middle part of the diagonal cable C, and use the winch 31 to lift it to the main tower T side so that the diagonal cable C can be lifted vertically. The tower crane 1 lifts the diagonal cable C to the height of a predetermined anchoring pipe 61 buried in the main tower T (). Lifting diagonal cable C,
Simultaneously with the pulling by the winch 31 , the unit vehicle 4 is advanced toward the fixing tube 62 side of the bridge girder G.
以上の作業を並行して、主塔Ｔ上に設置された
引き込み装置２に接続され、下端に引き込み具２
ａが取り付けられた引き込みワイア２ｂを定着管
６1内を通して降下させる（）。 In parallel with the above work, it is connected to the retracting device 2 installed on the main tower T, and the retracting tool 2 is attached to the lower end.
The lead-in wire 2b to which a is attached is lowered through the fixing tube 61 ().
続いてタワークレーン１で斜材ケーブルＣを吊
り上げたまま、斜材ケーブルＣ引き込み時の角度
調節のためその定着具ｃと吊り治具１ａ間をたる
ませた状態で、定着管６1から出ている引き込み
具２ａに定着具ｃを接続する（）。このとき定
着管６1の定着部には定着具ｃ定着のためのナツ
トを装着しておく。 Next, while the diagonal cable C is hoisted by the tower crane 1, the diagonal cable C is pulled out from the anchor pipe 61 with a slack between the anchor c and the lifting jig 1a to adjust the angle when pulling the diagonal cable C. Connect the fixing tool c to the retracting tool 2a (). At this time, a nut for fixing the fixing tool c is attached to the fixing portion of the fixing tube 61 .
ここで橋桁Ｇ上の斜材ケーブルＣを巻き戻し装
置５から抜き出す。 Here, the diagonal cable C on the bridge girder G is pulled out from the unwinding device 5.
次にタワークレーン１の操作で斜材ケーブルＣ
の角度を定着管６1に合わせながら引き込み装置
２により引き込みワイア２ｂを巻き上げて斜材ケ
ーブルＣを定着管６1内に引き込む（）。 Next, operate the tower crane 1 to connect the diagonal cable C.
While aligning the angle with the fixing tube 6 1 , the pulling device 2 winds up the pulling wire 2 b and draws the diagonal cable C into the fixing tube 6 1 ( ).
この作業と同時に、橋桁Ｇ側の斜材ケーブルＣ
の定着具ｃから角度調節に必要な距離をおいて主
塔Ｔ側と同様に引治具３2aを取り付け、ウインチ
３2により斜材ケーブルＣを定着管６2側へ引き寄
せる（）。この斜材ケーブルＣの引き寄せは橋
桁Ｇ本体の施工のためのワーゲンＷを利用して行
えばよい。 At the same time as this work, diagonal cable C on the bridge girder G side
Attach the pulling jig 3 2 a in the same way as on the main tower T side at a distance necessary for angle adjustment from the anchoring tool c, and pull the diagonal cable C toward the anchoring pipe 6 2 using the winch 3 2 (). This diagonal cable C may be pulled using a wagon W for constructing the bridge girder G main body.
主塔Ｔ側の斜材ケーブルＣの定着管６1への引
き込み後、定着具ｃが定着管６1の端部に出たと
ころでこれをナツト定着し、主塔Ｔ側の引き込み
作業は終了する（）。 After pulling the diagonal cable C on the main tower T side into the anchoring pipe 6 1 , when the anchoring tool c comes out to the end of the anchoring pipe 6 1 , it is fixed with a nut, and the pulling work on the main tower T side is completed. ().
ここで斜材ケーブルＣはタワークレーン１から
切り離される。 Here, the diagonal cable C is separated from the tower crane 1.
一方橋桁Ｇ側では、ウインチ３2により斜材ケ
ーブルＣを定着管６2付近まで引き寄せ、定着管
６2入口まで寄せたところで定着具ｃ先端にジヤ
ツキ７のチヤツクを取り付け、ウインチ３2の操
作とともに定着管６2入口に設けたローラ８を利
用して斜材ケーブルＣを定着管６2の角度に合わ
せ、ジヤツキ７により斜材ケーブルＣを定着管６
２内へ引き込む（）。このときの斜材ケーブルＣ
の引き込み角度の調節及びその保持はローラ８と
ウインチ３2の操作によつてなされる。 On the other hand, on the bridge girder G side, the diagonal cable C is pulled to the vicinity of the anchoring tube 6 2 by the winch 3 2 , and when it is brought to the entrance of the anchoring tube 6 2 , the chuck of the jack 7 is attached to the tip of the anchoring tool c, and as the winch 3 2 is operated Adjust the diagonal cable C to the angle of the fixing tube 6 2 using the roller 8 provided at the entrance of the fixing tube 6 2 , and then move the diagonal cable C to the fixing tube 6 using the jack 7.
Pull into 2 (). Diagonal cable C at this time
Adjustment of the retraction angle and maintenance thereof are performed by operating the rollers 8 and the winch 32 .
斜材ケーブルＣの引き込み後、定着具ｃが定着
管６2端部に出たところでこれをナツト定着し、
橋桁Ｇ側の引き込み作業は終了する。 After pulling in the diagonal cable C, when the fixing tool c comes out to the end of the fixing tube 6 2 , fix it with a nut.
The pulling work on the G side of the bridge girder is completed.
その後、主塔Ｔ側と橋桁Ｇ側のそれぞれにおい
て斜材ケーブルＣを緊張し、斜材ケーブルＣの架
設作業は終了する。 Thereafter, the diagonal cable C is tensioned on each of the main tower T side and the bridge girder G side, and the construction work of the diagonal cable C is completed.
この発明は以上の通りであり、橋桁上では２基
のウインチのみを用いて斜材ケーブルの引き込み
作業を行うものであるため橋桁上には本体工事に
支障のないスペースが確保され、この工事を斜材
ケーブルの架設工事と並行して行うことが可能で
あり、工期の短縮化を図ることができる。
This invention is as described above, and since only two winches are used to pull in the diagonal cables on the bridge girder, a space is secured on the bridge girder that does not interfere with the main body construction, and this work can be carried out. This can be carried out in parallel with the diagonal cable erection work, and the construction period can be shortened.
また橋桁上の重量が軽量化されるのでその応力
負担が軽減されることになる。 Furthermore, since the weight on the bridge girder is reduced, the stress burden thereon is reduced.
第１図−〜は本発明の施工手順を示した立
面図である。
Ｃ……斜材ケーブル、ｃ……定着具、Ｔ……主
塔、Ｇ……橋桁、１……タワークレーン、１ａ…
…吊り治具、２……引き込み装置、２ａ……引き
込み具、２ｂ……引き込みワイア、３1，３2……
ウインチ、３1a，３2a……引治具、４……ユニツ
ク車、５……巻き戻し装置、６1，６2……定着
管、Ｗ……ワーゲン、７……ジヤツキ、８……ロ
ーラ。
FIG. 1 is an elevational view showing the construction procedure of the present invention. C... diagonal cable, c... anchor, T... main tower, G... bridge girder, 1... tower crane, 1a...
...Hanging jig, 2... Retracting device, 2a... Retracting tool, 2b... Retracting wire, 3 1 , 3 2 ...
Winch, 3 1 a, 3 2 a... Pulling tool, 4... Unit wheel, 5... Rewinding device, 6 1 , 6 2 ... Fixing tube, W... Wagen, 7... Jack, 8... …roller.
Claims (1)
端部に定着具が圧着されてある斜材ケーブルを、
橋桁上のウインチで主塔側へ引き寄せながら主塔
側端部から所要距離をおいて主塔上のタワークレ
ーンで所定の定着管の高さまで吊り上げる一方、
主塔上に設置された引き込み装置に接続され、下
端に引き込み具が取り付けられた引き込みワイア
を主塔の定着管内を通して降下させ、この引き込
み具に定着具を接続し、引き込み装置で引き込み
ワイアを巻き上げて定着具を主塔に定着した後、
斜材ケーブルをタワークレーンから切り離し、橋
桁上の斜材ケーブルを橋桁側端部より所要距離を
おいてウインチで橋桁の定着管側へ引き寄せなが
ら定着具をこれにジヤツキのチヤツクを接続して
定着管内に引き込み、定着具を橋桁に定着すると
いう工程からなる斜張橋における斜材ケーブルの
架設方法。1. The diagonal cable is installed on the bridge girder and has fixing devices crimped to the ends of the main tower and the bridge girder in advance.
The winch on the bridge girder pulls it toward the main tower, and the tower crane on the main tower lifts it up to the specified height of the anchoring pipe, at a required distance from the end of the main tower.
A pull-in wire that is connected to a pull-in device installed on the main tower and has a pull-in tool attached to its lower end is lowered through the anchoring pipe of the main tower, the anchor is connected to this pull-in tool, and the pull-in wire is wound up with the pull-in device. After fixing the fixing tool to the main tower,
Disconnect the diagonal cable from the tower crane, pull the diagonal cable on the bridge girder to the anchoring pipe side of the bridge girder at the required distance from the end of the bridge girder using a winch, connect the anchoring device to it and the chuck of the jack, and insert it into the anchoring pipe. A method for installing cables in cable-stayed bridges, which consists of the steps of pulling the cable into the bridge and fixing the fixing device to the bridge girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16935487A JPS6414407A (en) | 1987-07-07 | 1987-07-07 | Method of erecting diagonal member cable in diagonal built bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16935487A JPS6414407A (en) | 1987-07-07 | 1987-07-07 | Method of erecting diagonal member cable in diagonal built bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414407A JPS6414407A (en) | 1989-01-18 |
| JPH0380203B2 true JPH0380203B2 (en) | 1991-12-24 |
Family
ID=15885016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16935487A Granted JPS6414407A (en) | 1987-07-07 | 1987-07-07 | Method of erecting diagonal member cable in diagonal built bridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6414407A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230593A (en) * | 1987-12-14 | 1993-07-27 | Mitsubishi Kinzoku Kabushiki Kaisha | Twist drill |
| CN110172919A (en) * | 2019-05-29 | 2019-08-27 | 中交二公局东萌工程有限公司 | A kind of low-pylon cable-stayed bridge is reeved method and system |
| CN111979916B (en) * | 2019-12-31 | 2021-09-14 | 中铁十一局集团第一工程有限公司 | Cable-stayed bridge tower part suspension construction method and suspension operation platform device |
-
1987
- 1987-07-07 JP JP16935487A patent/JPS6414407A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6414407A (en) | 1989-01-18 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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