JPH10280328A - Removal and erection method for bridge and pontoon equipment used to the method - Google Patents
Removal and erection method for bridge and pontoon equipment used to the methodInfo
- Publication number
- JPH10280328A JPH10280328A JP8251597A JP8251597A JPH10280328A JP H10280328 A JPH10280328 A JP H10280328A JP 8251597 A JP8251597 A JP 8251597A JP 8251597 A JP8251597 A JP 8251597A JP H10280328 A JPH10280328 A JP H10280328A
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- bridge girder
- girder
- pontoon
- barge
- 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.)
- Pending
Links
- 238000007667 floating Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000004642 transportation engineering Methods 0.000 abstract description 2
- 102000010637 Aquaporins Human genes 0.000 abstract 1
- 108010063290 Aquaporins Proteins 0.000 abstract 1
- 241000009298 Trigla lyra Species 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 101700031500 TECR Proteins 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、河川等の橋梁の撤
去および架設方法に関する。The present invention relates to a method for removing and erection of bridges such as rivers.
【０００２】[0002]
【従来の技術】河川等の水路に架設されている橋梁は、
道路事情または老朽化のため、撤去して新規橋梁に架設
替えする需要が増大している。2. Description of the Related Art Bridges installed in waterways such as rivers are:
Due to road conditions or aging, the demand for removing and replacing with new bridges is increasing.
【０００３】既設橋梁の撤去方法の従来技術として、
「道路構造物の解体技術に関する調査研究報告書」
（（財）道路保全技術センター道路構造物保全協会解体
部会）によれば、図４、図５に示す方法が知られてい
る。As a conventional technique for removing an existing bridge,
"Survey and Research Report on Road Structure Demolition Technology"
According to the Road Conservation Technology Center Road Structure Conservation Association Dismantling Subcommittee, the methods shown in FIGS. 4 and 5 are known.
【０００４】図４は、従来技術における橋梁の撤去方法
を示した側面図で、橋桁２０上の床版コンクリート２１
を除去し橋軸方向で分割した主桁２２を、橋体上のクロ
ーラクレーン２３で吊り上げ、トラック２４に積込み解
体場所へ撤去する方法（以下、従来技術１という。）で
ある。尚、Ｐ1 、Ｐ2 、Ｐ3 、Ｐ4 は橋脚であり、８は
水路面、Ａ2 は橋台である。FIG. 4 is a side view showing a bridge removing method according to the prior art.
The main girder 22 divided in the direction of the bridge axis is lifted by a crawler crane 23 on a bridge body, loaded on a truck 24 and removed to a dismantling place (hereinafter referred to as prior art 1). Incidentally, P 1, P 2, P 3, P 4 is the piers, 8 water road, A 2 is the abutment.
【０００５】また、図５は、他の従来技術における橋梁
の撤去方法を示した側面図で、ゲルバー桁３０上の床版
コンクリートを除去し橋軸方向で分割した主桁３１を、
橋台Ａ1 ，Ａ2 側はトラッククレーン３２で撤去し、水
路面８側の主桁３１は、桁受け３３が設けられた台船３
４を主桁３１の下部に位置させ、満潮を利用して主桁３
１を持ち上げ、撤去する方法（以下、従来技術２とい
う。）である。FIG. 5 is a side view showing another conventional bridge removing method. A main girder 31 obtained by removing a slab concrete on a gel bar girder 30 and dividing the same in a bridge axis direction is shown in FIG.
The abutments A 1 and A 2 are removed by a truck crane 32, and the main girder 31 on the waterway surface 8 side is a barge 3 provided with a girder support 33.
4 is located below the main girder 31 and the main girder 3 is
1 is a method of lifting and removing (hereinafter referred to as conventional technology 2).
【０００６】また、橋梁の架設方法として、図４および
図５の手段で橋桁を架設する方法、あるいは、ケーブル
クレーン片持式工法等が知られている。Further, as a method of erection of a bridge, a method of erection of a bridge girder by means of FIGS. 4 and 5 or a cantilever type construction method of a cable crane is known.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、橋桁の
撤去方法における前記従来技術１は、クローラクレーン
を用いる方法であるから、吊られる主桁は３５トン程度
が限度となり、橋脚スパンが短い比較的小型の橋梁であ
るか、または、軽量化のため床版コンクリートを除去し
た橋桁を橋軸方向に分割した主桁とする必要があり、作
業効率が悪いという問題点がある。However, since the prior art 1 in the method of removing the bridge girder uses a crawler crane, the main girder to be suspended is limited to about 35 tons, and the bridge pier span is relatively small. Or the bridge girder from which the floor slab concrete has been removed needs to be a main girder divided in the bridge axis direction for the purpose of weight reduction, and there is a problem that work efficiency is poor.
【０００８】また、前記従来技術２は、台船を用いるも
のの満潮時を利用して主桁を持ち上げ、撤去する方法で
あるので、撤去作業に長時間を要するという問題点があ
り、また、長時間の作業は、他の通航船の航行を阻害す
るという問題点がある。Further, the prior art 2 uses a barge to lift and remove the main girder at high tide, so that it takes a long time to remove the main girder. There is a problem that time work hinders the navigation of other passing vessels.
【０００９】また、前記従来技術以外の想定技術とし
て、橋梁の撤去に大型のフローティングクレーンを使用
すれば一挙に解決できるが、通常、河川等の水路には複
数の橋が架設されており、前記大型のフローティングク
レーンは、他の既設橋梁の下部の通航が不可能であり、
使用できない制約がある。[0009] As a supposed technology other than the conventional technology, a large floating crane can be used to remove a bridge, which can be solved all at once. However, usually, a plurality of bridges are installed in waterways such as rivers. Large floating cranes cannot pass under other existing bridges,
Some restrictions cannot be used.
【００１０】また、橋桁の架設方法としての前述の従来
技術においては、撤去と同様に小ブロックでの架設とな
り、あるいは、干満を利用する方法であり架設効率が悪
い問題点がある。さらに、橋桁の架設方法として大型フ
ローティングクレーンにより一括搭載方式があるが、既
設の他の橋梁が架設されている河川等では、該大型フロ
ーティングクレーンの通航が不可能であったり、設備コ
ストが高くつく問題がある。Further, in the above-mentioned prior art as a method of erection of a bridge girder, the erection is carried out in small blocks as in the case of removal, or a method of utilizing the ebb and flow, and there is a problem that the erection efficiency is poor. Furthermore, as a method of erection of bridge girders, there is a batch mounting method using a large floating crane. However, in a river or the like on which another existing bridge is erected, passage of the large floating crane is impossible or equipment cost is high. There's a problem.
【００１１】本発明は、河川等の水路に架設された橋桁
の撤去および架設作業を、安全かつ迅速に行うことを目
的とするものである。SUMMARY OF THE INVENTION An object of the present invention is to safely and promptly remove and install a bridge girder installed on a waterway such as a river.
【００１２】[0012]
【課題を解決するための手段】前述の課題を解決する第
一の手段は、橋桁の下方に台船を配置し、該橋桁幅方向
の両側を台船上に設けた対の吊り上げ機構で支持しなが
ら、橋桁の橋軸方向の両端を切断し、該切断された橋桁
を前記対の吊り上げ機構で台船上に降下させて橋桁を橋
体から離脱させることを特徴とする橋梁の撤去方法であ
る。A first means for solving the above-mentioned problems is to arrange a barge below a bridge girder and to support both sides in the width direction of the bridge girder by a pair of lifting mechanisms provided on the barge. A method for removing a bridge, comprising cutting both ends of a bridge girder in the bridge axis direction, lowering the cut bridge girder onto a barge by the pair of lifting mechanisms, and detaching the bridge girder from the bridge body.
【００１３】前述の課題を解決する第二の手段は、台船
で運搬されてきた橋桁を、前記台船上の対の吊り上げ機
構により橋桁幅方向の両側部を吊持して橋脚に支持させ
た後、前記橋桁を隣接する橋桁に接合することを特徴と
する橋梁の架設方法である。A second means for solving the above-mentioned problem is that a bridge girder carried by a barge is supported on a pier by suspending both sides in the bridge girder width direction by a pair of lifting mechanisms on the barge. Then, the bridge girder is joined to an adjacent bridge girder.
【００１４】前述の課題を解決する第三の手段は、橋桁
幅に略等しい間隔で台船上に設置され、中間で上下２分
割に構成されている対の架構と、該架構上部に取付けら
れた吊り上げ機構とからなる橋梁の撤去、架設に使用す
る台船装置である。A third means for solving the above-mentioned problem is that a pair of frames which are installed on the barge at intervals substantially equal to the width of the bridge girder, and are formed in the middle and divided into upper and lower parts, and attached to the upper part of the frame This is a barge device used for removing and erection of bridges consisting of lifting mechanisms.
【００１５】前述の手段によれば、橋桁の撤去および架
設は、台船上の対の吊り上げ機構で、橋桁の幅方向両端
を吊持しながら降下、撤去または揚重、架設が行われる
ので、短時間に作業を終えることができる。According to the above-mentioned means, the removal and erection of the bridge girder is performed by a pair of lifting mechanisms on the barge, and the bridge girder is lowered, removed or lifted and erected while suspending both ends in the width direction of the bridge girder. Work can be completed in time.
【００１６】また、台船上に吊り上げ機構を対で設けた
ことにより、架構および吊り上げ機構の吊り索が貫通す
る開口を橋桁に穿つ必要がないので、開口のための切断
または塞ぎ作業が省力化される。Further, since the lifting mechanism is provided as a pair on the barge, it is not necessary to drill an opening through which the suspension cable of the frame and the lifting mechanism penetrates in the bridge girder, so that cutting or closing work for the opening can be saved. You.
【００１７】さらに、台船装置における台船上の架構
は、二分割に構成されているので、橋桁の水面からの高
さが低くても、容易に台船を配置することが可能であ
る。Further, since the frame on the barge in the barge device is formed in two parts, the barge can be easily arranged even if the height of the bridge girder from the water surface is low.
【００１８】[0018]
【発明の実施の形態】以下、本発明にかかる橋梁の撤
去、架設方法およびその方法に使用する台船装置につい
て、図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for removing and erection of a bridge according to the present invention and a barge device used in the method will be described below with reference to the drawings.
【００１９】図１は、本発明にかかる側面図で、１、２
は橋脚Ｐ1,Ｐ2 上で支承されたトラス橋桁であり、３、
３は台船である。FIG. 1 is a side view according to the present invention.
Is a truss girder supported on piers P 1 and P 2 ,
3 is a barge.
【００２０】４、４は、前記台船３、３の上に取付けら
れた架構、５、５は前記架構４、４の上部に設置された
吊り上げ機構である。６、６は前記架構４、４の倒れ止
めステーである。Reference numerals 4 and 4 denote frames mounted on the barges 3 and 5, and reference numerals 5 and 5 denote lifting mechanisms installed above the frames 4 and 4, respectively. Reference numerals 6 and 6 denote stays for preventing the frames 4 and 4 from falling down.
【００２１】台船装置は、前記台船３、架構４および倒
れ止めステー６、吊り上げ機構５から構成されている。The barge apparatus comprises the barge 3, the frame 4, the stay 6, and the lifting mechanism 5.
【００２２】図２は、図１のＡ−Ａ断面図で、台船３の
上には架構４がトラス橋桁１の桁幅方向の両側部に対向
して立設されており、該架構４は線Ｂの位置で上部架構
４ａと下部架構４ｂの上下に二分割可能名構造となって
いる。FIG. 2 is a sectional view taken along line AA of FIG. 1. A frame 4 is erected on the barge 3 so as to face both sides of the truss bridge girder 1 in the beam width direction. At the position of the line B, the upper frame 4a and the lower frame 4b can be vertically divided into two.
【００２３】先ず、トラス橋桁１の撤去に際しては、前
記架構４の上部架構４ａを撤去し、下部架構４ｂのみの
状態で、トラス橋桁１の下方に台船３を配置した後、上
部架構４ａを下部架構４ｂの上に取付ける。前記上部架
構４ａと下部架構４ｂの取付けは、トラス橋桁上の小型
クレーンまたは小型のフローティングクレーン（図示せ
ず）を用いて上部架構４ａを吊り、該上部架構４ａと下
部架構４ｂの当接部をボルト締結等の手段で接合または
離脱を行う。First, when removing the truss bridge girder 1, the upper frame 4a of the frame 4 is removed, the barge 3 is placed below the truss bridge girder 1 with only the lower frame 4b, and then the upper frame 4a is removed. It is mounted on the lower frame 4b. The upper frame 4a and the lower frame 4b are attached by suspending the upper frame 4a by using a small crane or a small floating crane (not shown) on a truss bridge girder, and forming a contact portion between the upper frame 4a and the lower frame 4b. Joining or detaching is performed by means such as bolting.
【００２４】次に、上部架構４ａに吊り上げ機構５を取
り付ける。吊り上げ機構５は、ジャッキ５ａと鋼線等の
吊り索５ｂとから構成され、吊り索５ｂの下端はトラス
橋桁１に係止されている。前記吊り索５ｂは前記ジャッ
キ５ａ内部の２ケのクランプ（図示せず）で交互に把持
し、シリンダー機構（図示せず）で該把持状態のクラン
プを上下動させることにより吊り索５ｂを上送りさせた
り、下送りさせることによりトラス橋桁１の上昇、下降
を行わせるもので、ＶＳＬジャッキ（商標）として公知
のものである。該吊り上げ機構５は、同様の機能のもの
であれば、特に、前記ＶＳＬジャッキに限定されない。Next, the lifting mechanism 5 is attached to the upper frame 4a. The lifting mechanism 5 includes a jack 5a and a suspension cable 5b such as a steel wire, and a lower end of the suspension cable 5b is locked to the truss bridge girder 1. The hanging cable 5b is alternately gripped by two clamps (not shown) in the jack 5a, and the clamp in the gripping state is moved up and down by a cylinder mechanism (not shown) to move the hanging cable 5b upward. The truss bridge girder 1 is raised and lowered by moving the truss bridge girder 1 downward, and is known as VSL jack (trademark). The lifting mechanism 5 is not particularly limited to the VSL jack as long as it has a similar function.
【００２５】前記吊り索５ｂの下端は、トラス橋桁１の
下部に当接された反力受け桁７に係止させ、その状態
で、トラス橋桁１の橋軸方向の両端を切断する。切断線
は、トラス橋の構造から所定の切断線が決定される。そ
の後、吊り上げ機構５の吊り索５ｂをジャッキ５ａを作
動させて上送りさせ、トラス橋桁１を上方に持ち上げ、
橋脚Ｐ1,Ｐ2 の支承沓から離脱させ、その状態で台船
３、３を橋桁幅方向に移動させ、橋体から離れた所で、
吊り上げ機構５の吊り索５ｂをジャッキ５ａを作動させ
て下送りさせることにより、トラス橋桁１を徐々に矢視
方向に下降し、破線図のように台船３の上部に載置させ
る。The lower end of the suspension cable 5b is engaged with a reaction force receiving girder 7 which is in contact with the lower part of the truss bridge girder 1. In this state, both ends of the truss girder 1 in the bridge axis direction are cut off. A predetermined cutting line is determined from the structure of the truss bridge. Then, the lifting cable 5b of the lifting mechanism 5 is moved upward by operating the jack 5a, and the truss bridge girder 1 is lifted upward.
The piers P 1, P 2 are detached from the bearing shoes, and the barges 3, 3 are moved in the bridge girder width direction in that state.
The truss bridge girder 1 is gradually lowered in the direction of the arrow by operating the jack 5a to lower the suspension cable 5b of the lifting mechanism 5 so as to be mounted on the upper part of the barge 3 as shown by the broken line diagram.
【００２６】台船３の上部に載置されたトラス橋桁１
は、台船３の曳航により解体場所へ移送される。運搬途
上で架構４の高さが問題となる場合は、上部架構４ａを
下部架構４ｂから撤去し、台船３上に載置した状態で曳
航し、陸上げの段階で再び下部架構４ｂ上に設置され
る。The truss bridge girder 1 mounted on the upper part of the barge 3
Is transported to the demolition site by towing the barge 3. If the height of the frame 4 becomes a problem during transportation, the upper frame 4a is removed from the lower frame 4b, towed while being placed on the barge 3, and re-mounted on the lower frame 4b during the landing. Will be installed.
【００２７】次に、トラス橋桁１の架設の場合は、前述
の撤去とは逆の工程で台船３上に新規のトラス橋桁１を
陸地等から積込み、架設位置まで台船３で運搬し、橋軸
線および橋脚に合わせて吊り上げ機構５でトラス橋桁１
を橋脚より上方に吊り上げ、台船３を橋幅方向に移動さ
せ橋軸線に一致させた状態で、橋脚上に載置する。Next, in the case of erection of the truss bridge girder 1, a new truss bridge girder 1 is loaded from the land or the like on the barge 3 in a process reverse to the above-mentioned removal, and transported to the erection position by the barge 3, Truss bridge girder 1 with lifting mechanism 5 according to the bridge axis and pier
Is lifted above the pier, and the barge 3 is moved in the bridge width direction and placed on the pier in a state where it is aligned with the bridge axis.
【００２８】図３は、図１の平面図で、二隻の台船３、
３でトラス橋桁１を支持している状態で、前記架構４の
周囲三方は倒れ止めステー６で固められており、また、
３ａ，３ｂは橋脚Ｐ1,Ｐ2 に係止される係留索、３ｃは
アンカー係留索、３ｄは台船３、３の間隔を設定する係
留索である。FIG. 3 is a plan view of FIG.
In a state where the truss bridge girder 1 is supported by 3, three sides around the frame 4 are fixed by the stays 6 for preventing falling, and
3a, 3b are mooring, 3c to be engaged in piers P 1, P 2 is the anchor mooring lines, 3d a mooring cable to set the interval of barge 3,3.
【００２９】以上、本発明は橋桁をトラス橋桁の例で説
明したが、トラス橋桁に限定されず鋼製箱桁、ゲルバー
桁、等各種の橋桁に適用できる。As described above, the present invention has been described by using the truss bridge girder as the bridge girder. However, the present invention is not limited to the truss bridge girder, and can be applied to various bridge girder such as a steel box girder, a gel bar girder and the like.
【００３０】さらに、橋桁の長さが長い場合は、対の台
船装置を複数組橋軸方向に配置することにより対応する
ことが可能である。Further, when the length of the bridge girder is long, it is possible to cope with the problem by arranging a plurality of paired barge devices in the axial direction of the bridge.
【００３１】[0031]
【発明の効果】本発明は、以上のとおりであるから、巨
大な橋桁単位で撤去および架設できるので、作業効率が
向上し、他船の通航を長時間にわたり通航止めとするこ
とがない。As described above, since the present invention can be removed and erected in units of huge bridge girders, the work efficiency is improved and the passage of another ship is not stopped for a long time.
【００３２】また、橋桁に架構が貫通する開口を設ける
必要がないので、撤去時の開口切断作業、または、架設
時の開口塞ぎ作業がないので、大幅な省力化が可能とな
る。Further, since it is not necessary to provide an opening through which the frame penetrates the bridge girder, there is no need to cut off the opening when removing or to close the opening when installing the bridge girder.
【図１】本発明の側面図。FIG. 1 is a side view of the present invention.
【図２】図１のＡ−Ａ断面図。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】図１の平面図。FIG. 3 is a plan view of FIG. 1;
【図４】従来技術の側面図。FIG. 4 is a side view of the prior art.
【図５】従来技術の側面図。FIG. 5 is a side view of the prior art.
１ トラス橋桁 ２ トラス橋桁 ３ 台船 ４ 架構 ４ａ 上部架構 ４ｂ 下部架構 ５ 吊り上げ機構 ５ａ ジャッキ ５ｂ 吊り索 ６ 倒れ止めステー ７ 反力受け桁 DESCRIPTION OF SYMBOLS 1 Truss bridge girder 2 Truss bridge girder 3 Barge 4 Frame 4a Upper frame 4b Lower frame 5 Lifting mechanism 5a Jack 5b Hanging cable 6 Fall prevention stay 7 Reaction force receiving girder
Claims (3)
向の両側を台船上に設けた対の吊り上げ機構で支持しな
がら、橋桁の橋軸方向の両端を切断し、該切断された橋
桁を前記対の吊り上げ機構で台船上に降下させて橋桁を
橋体から離脱させることを特徴とする橋梁の撤去方法。1. A barge is arranged below a bridge girder, and both ends of the bridge girder in the bridge axis direction are cut while supporting both sides in the width direction of the bridge girder by a pair of lifting mechanisms provided on the barge. Removing the bridge girder from the bridge body by lowering the bridge girder onto the barge by the pair of lifting mechanisms.
上の対の吊り上げ機構により橋桁幅方向の両側部を吊持
して橋脚に支持させた後、前記橋桁を隣接する橋桁に接
合することを特徴とする橋梁の架設方法。2. A bridge girder carried by a barge is supported on a pier by suspending both sides in the bridge girder width direction by a pair of lifting mechanisms on the barge, and then the bridge girder is joined to an adjacent bridge girder. The method of erection of the bridge characterized by doing.
れ、中間で上下２分割に構成されている対の架構と、該
架構上部に取付けられた吊り上げ機構とからなる橋梁の
撤去、架設に使用する台船装置。3. Removal and erection of a bridge comprising a pair of frames which are installed on a barge at intervals substantially equal to the width of a bridge girder and are formed in the middle and divided into upper and lower parts, and a lifting mechanism attached to the upper part of the frame. Barge equipment used for
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8251597A JPH10280328A (en) | 1997-04-01 | 1997-04-01 | Removal and erection method for bridge and pontoon equipment used to the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8251597A JPH10280328A (en) | 1997-04-01 | 1997-04-01 | Removal and erection method for bridge and pontoon equipment used to the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10280328A true JPH10280328A (en) | 1998-10-20 |
Family
ID=13776675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8251597A Pending JPH10280328A (en) | 1997-04-01 | 1997-04-01 | Removal and erection method for bridge and pontoon equipment used to the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10280328A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040040695A (en) * | 2002-11-07 | 2004-05-13 | 주식회사 하이테크한상 | Temporary apparatus for dismantalement of slab |
| JP2006348685A (en) * | 2005-06-20 | 2006-12-28 | Penta Ocean Constr Co Ltd | Method for lifting concrete member and lifting fixture |
| JP2007321475A (en) * | 2006-06-01 | 2007-12-13 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Barge for construction of bridge, and bridge removal method |
| JP2007321474A (en) * | 2006-06-01 | 2007-12-13 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Rebuilding method for bridge |
| JP2009228300A (en) * | 2008-03-24 | 2009-10-08 | Maeda Corp | Construction method of enlarging space under girder of river bridge |
| CN102409623A (en) * | 2011-09-05 | 2012-04-11 | 山东中宏路桥建设有限公司 | Floating bridge removing method |
| KR101153779B1 (en) | 2011-08-26 | 2012-06-07 | (주) 한국비계 | Device for bridge dismantle using the strand jack and its methode |
-
1997
- 1997-04-01 JP JP8251597A patent/JPH10280328A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040040695A (en) * | 2002-11-07 | 2004-05-13 | 주식회사 하이테크한상 | Temporary apparatus for dismantalement of slab |
| JP2006348685A (en) * | 2005-06-20 | 2006-12-28 | Penta Ocean Constr Co Ltd | Method for lifting concrete member and lifting fixture |
| JP4541978B2 (en) * | 2005-06-20 | 2010-09-08 | 五洋建設株式会社 | Method of lifting concrete member and lifting jig |
| JP2007321475A (en) * | 2006-06-01 | 2007-12-13 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Barge for construction of bridge, and bridge removal method |
| JP2007321474A (en) * | 2006-06-01 | 2007-12-13 | Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co Ltd | Rebuilding method for bridge |
| JP4727504B2 (en) * | 2006-06-01 | 2011-07-20 | 三菱重工鉄構エンジニアリング株式会社 | Bridge removal method |
| JP2009228300A (en) * | 2008-03-24 | 2009-10-08 | Maeda Corp | Construction method of enlarging space under girder of river bridge |
| KR101153779B1 (en) | 2011-08-26 | 2012-06-07 | (주) 한국비계 | Device for bridge dismantle using the strand jack and its methode |
| CN102409623A (en) * | 2011-09-05 | 2012-04-11 | 山东中宏路桥建设有限公司 | Floating bridge removing method |
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