JPH073728A - Removal of overhead bridge and bridge girder and device therefor - Google Patents
Removal of overhead bridge and bridge girder and device thereforInfo
- Publication number
- JPH073728A JPH073728A JP25280292A JP25280292A JPH073728A JP H073728 A JPH073728 A JP H073728A JP 25280292 A JP25280292 A JP 25280292A JP 25280292 A JP25280292 A JP 25280292A JP H073728 A JPH073728 A JP H073728A
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- girder
- suspension
- erection
- elevated
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【０００１】[0001]
【発明の利用分野】本発明は、既存の高架、橋梁をその
下方の状況に左右されることなく撤去することのできる
高架、橋梁撤去方法とその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevated structure and a bridge removing method and an apparatus therefor capable of removing an existing elevated structure and bridge without being influenced by the condition therebelow.
【０００２】[0002]
【従来の技術】従来、既存の高架、橋梁を撤去する方法
としては、大型クレーンやユニットドーリー台車を用い
て、高架、橋梁を吊り上げ、移動したり、高架、橋梁の
下方に作業台を設置し、その場で解体し運搬する等の方
法が知られている。2. Description of the Related Art Conventionally, as a method of removing an existing elevated bridge or bridge, a large crane or a unit dolly trolley is used to lift and move the elevated bridge or bridge, or a work platform is installed below the elevated bridge or bridge. , Methods of disassembling and transporting on the spot are known.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、クレー
ン工法による場合は、その吊り能力に限界があるため、
所要の形状、寸法、重量であることや高架、橋梁に接近
可能であること等、制約条件が多く、また撤去作業、横
断通行車両に対する危険要因も多く、安全性の確保が難
しいという問題がある。また、河川等では桟橋等の仮設
備が必要であり、費用の増加となる。また、ユニットド
ーリー台車を用いた施工法では、撤去物の長さ、幅、重
量等クレーン工法以上に制約を受けるとともに、台車の
機能上、昇降範囲が狭いため、隣接した高架、橋梁があ
る場合、その下を通過できないこと、河川横断橋には適
用できないこと等、使用上の制約条件や重量物運搬に対
する危険要因が多く、また走行速度が遅いため、撤去、
運搬に時間を要するという問題があった。さらに、作業
台上で解体し、搬出する方法は、作業台構築のための横
断通行車両に対する危険要因が多く、また費用が増大す
るという問題があった。However, in the case of the crane construction method, there is a limit to the lifting capacity, so
There are many constraints such as required shape, size, weight, access to overpasses, bridges, etc., and there are many risk factors for removal work and crossing vehicles, so it is difficult to secure safety. . In addition, temporary facilities such as piers are required for rivers, etc., which increases costs. In addition, in the construction method using a unit dolly truck, the length, width, weight, etc. of the removed material are more restricted than the crane construction method. There are many restrictions on use and risk factors for heavy goods transportation, such as not being able to pass underneath and not being applicable to river crossing bridges.
There was a problem that it took time to transport. Furthermore, the method of disassembling on a workbench and carrying it out has many problems that there are many risk factors for a crossing vehicle for constructing a workbench and the cost increases.
【０００４】本発明は前記問題点に鑑みてなされたもの
で、その目的は、より安全で且つ費用を低減することの
できる高架、橋梁撤去方法およびその装置を提供するこ
とを目的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide an elevated structure, a bridge removing method, and an apparatus thereof which are safer and can reduce the cost.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、撤去対象となる高架、橋梁の両サイドま
たは橋面に配置されるエレクションガーダー、および、
エレクションガーダー上に設置される吊り梁と、高架、
橋梁の橋桁下面の両支承付近に設置された受梁と、吊り
梁と受梁とを連結 する吊り材ＰＣ鋼棒と、吊り材緊張
用ジャッキとにより高架、橋梁の撤去装置を構成したこ
とを要旨とする。In order to achieve the above object, the present invention provides an elevated object to be removed, an erection girder disposed on both sides of a bridge or a bridge surface, and
Suspended beams installed on the erection girder, elevated,
It was constructed that an overpass and a bridge removing device were constructed by a receiving beam installed near both bearings on the lower surface of the bridge girder of the bridge, a suspension steel PC steel rod connecting the suspension beam and the receiving beam, and a suspension member tension jack. Use as a summary.
【０００６】[0006]
【作用】撤去対象となる高架、橋梁の両サイドまたは橋
面にエレクションガーダーを配置し、エレクションガー
ダー上に吊り装置を設置し、高架、橋梁は橋桁下面の両
支承付近に設置された受梁に吊り材ＰＣ鋼棒を連結し、
吊り材緊張用ジャッキにより持ち上げ、その状態で吊り
装置をエレクションガーダー上に敷設されて、レールに
沿って橋軸方向にウインチまたは自走台車により次の径
間の橋面上または橋台背後の地盤上に移動させ、その後
台車等の手段により横断道路上や河川等から撤去する。[Operation] Elevation girders to be removed are placed on both sides of the bridge or on the bridge surface, and a suspension device is installed on the erection girder. Connect hanging PC steel rods,
Suspending material is lifted by a tensioning jack, and in that state the suspension device is laid on the erection girder, and along the rail in the bridge axis direction by a winch or a self-propelled carriage on the bridge surface of the next span or on the ground behind the abutment. And then remove it from the crossroads or rivers by means of trolleys.
【０００７】[0007]
【実施例】以下、本発明の実施例について説明する。図
１は本発明による高架、橋梁の撤去装置の一実施例にお
ける撤去装置の全体構成を示す正面図であり、図２はこ
の実施例の側面図、図３はその平面図である。EXAMPLES Examples of the present invention will be described below. FIG. 1 is a front view showing the overall structure of a removing device in an embodiment of an elevated and bridge removing device according to the present invention, FIG. 2 is a side view of this embodiment, and FIG. 3 is a plan view thereof.
【０００８】これらの図において、符号１及び２は高
架、橋梁が架設される橋台及び橋脚である。３は高架、
橋梁を構成する橋桁で、橋台１と橋脚２との間、または
橋脚２と橋脚２との間に架設され、橋軸の方向へ延びて
いる。４は高架、橋梁の両サイドにおいて橋台１または
橋脚２の上に構築されたベント、５はベント４上におい
てベント４とベント４との間に差し渡して設置されるエ
レクションガーダー、６はエレクションガーダー５の上
に設置され、このエレクションガーダーに沿って移動す
る吊り装置である。In these drawings, reference numerals 1 and 2 are an elevated structure, an abutment on which a bridge is installed, and a bridge pier. 3 is an overpass,
A bridge girder forming a bridge, which is erected between the abutment 1 and the pier 2 or between the pier 2 and the pier 2 and extends in the direction of the bridge axis. 4 is an elevated, vents constructed on the abutments 1 or piers 2 on both sides of the bridge, 5 is an erection girder installed on the vent 4 between the vents 4 and 4, and 6 is an erection girder 5. It is a suspension device that is installed on top of and moves along this erection girder.
【０００９】この実施例において、橋桁３を高速道路と
する。ベント４は、高架、橋梁の末端付近においては橋
台１の橋面１ａ上に支柱のように積み上げられる一方、
高架、橋梁の中間部分においては橋脚２上面の両端部に
積み上げられる。ベント４の上にはシート７が敷かれて
おり、このシート７を介してエレクションガーダー５が
設置される。シート７は、テフロンその他の比較的滑り
運動がし易く、しかも耐磨耗性に優れた材料から作られ
ている。エレクションガーダー５は橋桁３の２個分を幾
分か越える長さ寸法を有する鋼構造体から成り、複数の
ベント４（この実施例では３基のベント）に渡って橋軸
と平行に延びている。このエレクションガーダー５は、
橋梁の幅方向に所定の間隔をおいて対になって設置され
る。そして、各エレクションガーダー５の上面には当該
エレクションガーダーの長手方向に延びるレール８が一
対づつ敷設されている。In this embodiment, the bridge girder 3 is a highway. The vent 4 is piled up like a pillar on the bridge surface 1a of the abutment 1 near the end of the elevated bridge,
In the middle part of the viaduct and bridge, they are piled up on both ends of the upper surface of the pier 2. A sheet 7 is laid on the vent 4, and the erection girder 5 is installed via the sheet 7. The sheet 7 is made of a material such as Teflon which is relatively easy to slide and has excellent abrasion resistance. The erection girder 5 is made of a steel structure having a length dimension that slightly exceeds two bridge girders 3 and extends across a plurality of vents 4 (three vents in this embodiment) parallel to the bridge axis. There is. This erection girder 5
The bridges are installed in pairs at predetermined intervals in the width direction of the bridge. A pair of rails 8 extending in the longitudinal direction of the erection girders 5 are laid on the upper surface of each erection girder 5.
【００１０】吊り装置６は、エレクションガーダー５の
上に設置される吊り梁９と、橋桁３を下から受けて支持
する受梁１０と、吊り梁９に設けられた橋桁昇降用ジャ
ッキ１１と、受梁１０を橋桁３ごと吊り下げ、橋桁昇降
用ジャッキ１１によって昇降せしめられる吊り材ＰＣ鋼
棒１２と、吊り梁９のエレクションガーダー５への設置
部分に設けられた移動機構１３とから成る。この吊り装
置６は撤去される橋桁３に対して前後端部に対にして配
置される。The suspension device 6 includes a suspension beam 9 installed on the erection girder 5, a receiving beam 10 for receiving and supporting the bridge girder 3 from below, a jack girder lifting jack 11 provided on the suspension beam 9, The receiving beam 10 is suspended together with the bridge girder 3, and is made up of a suspension material PC steel rod 12 that is raised and lowered by a bridge girder lifting jack 11, and a moving mechanism 13 provided at the installation portion of the suspension beam 9 to the erection girder 5. The suspension device 6 is arranged in pairs at the front and rear ends of the bridge girder 3 to be removed.
【００１１】吊り梁９は例えばＨ形鋼から構成され、前
記対にして設けられたエレクションガーダー５の間に、
橋軸に対して直角方向に延びて架設される。受梁１０も
またＨ形鋼のような鋼材から成り、橋桁３の下側におい
て橋軸に対して直角方向に、橋桁３の撤去されるブロッ
クの幅寸法分だけ延びている。この受梁１０は吊り材Ｐ
Ｃ鋼棒１２の下端部分にボルト１４によって結合され
る。橋桁昇降用ジャッキ１１は油圧ポンプ等の流体駆動
機構によって操作される。この橋桁昇降用ジャッキ１１
は吊り梁９上に複数個設けられ、それぞれの橋桁昇降用
ジャッキ１１は互いに関連しながら動作するようコント
ロールされる。この実施例では、移動機構１３をウイン
チの他に自走式の装置を使用することが考えられ、この
うちの自走式の移動機構１３は駆動モータ１５と、エレ
クションガーダー５のレール８上に設置され駆動モータ
１５によって回転する車輪１６とから成る。The suspension beam 9 is made of, for example, H-shaped steel, and is provided between the erection girders 5 provided as the pair,
The bridge extends in a direction perpendicular to the bridge axis. The receiving beam 10 is also made of a steel material such as H-shaped steel and extends below the bridge girder 3 in the direction perpendicular to the bridge axis by the width dimension of the block to be removed of the bridge girder 3. This receiving beam 10 is a hanging member P
The lower end portion of the C steel rod 12 is connected with a bolt 14. The bridge girder lifting jack 11 is operated by a fluid drive mechanism such as a hydraulic pump. This jack girder lifting jack 11
Are provided on the suspension beam 9, and the bridge girder lifting jacks 11 are controlled to operate in association with each other. In this embodiment, it is conceivable to use a self-propelled device as the moving mechanism 13 in addition to the winch. The self-propelled moving mechanism 13 among them is mounted on the drive motor 15 and the rail 8 of the erection girder 5. Wheels 16 are installed and rotated by a drive motor 15.
【００１２】かかる構成を有する高架、橋梁の撤去装置
について、以下動作を説明する。図４はこの実施例にお
ける高架、橋梁の撤去手順を示す図である。撤去作業に
おいては、まず撤去対象となる高架、橋梁の両サイドに
ベント４をやぐら状に積み上げる。ベント４は、高架、
橋梁の末端付近においては橋台１の橋面１ａ上に積み上
げられる一方、高架、橋梁の中間部分においては橋脚２
上面の両端部（中空に突き出た先端部分）に積み上げら
れる。このベント４は最初の工程では橋軸方向に３個所
設けられる。次に、ベント４の上にシート７を敷き、そ
の上に撤去対象となる橋桁３の長さの２倍程度の長さを
有するエレクションガーダー５を設置し、その後、移動
機構１３を挿着した吊り装置６をエレクションガーダー
５に敷設されたレール８上に設置する。吊り装置６に配
置される吊り材ＰＣ鋼棒１２を配設するために、橋桁３
の所定の位置において橋面上から通し孔１７を開削し、
この通し孔１７に吊り材ＰＣ鋼棒１２を挿通し、その
後、橋桁３の下面支承付近に受け梁１０を設置し、ボル
ト１４により吊り材ＰＣ鋼棒１２と結合する。これによ
り、図４（ａ）に示すように、撤去されるべき橋桁３へ
の吊り装置６との連結が完了する。橋桁３を吊り上げる
ために、昇降用ジャッキ１１と吊り材ＰＣ鋼棒１２の設
置数を調整することにより、任意の橋桁３の形状、重量
等に対応することができる。The operation of the elevated and bridge removing device having the above structure will be described below. FIG. 4 is a diagram showing a procedure for removing the elevated bridge and the bridge in this embodiment. In the removal work, first, the vents 4 are piled up in a tower shape on both sides of the elevated and bridge to be removed. Vent 4 is elevated,
In the vicinity of the end of the bridge, it is piled up on the bridge surface 1a of the abutment 1, while in the middle part of the viaduct, the bridge pier 2
It is piled up on both ends of the top surface (the tip that protrudes in the hollow). The vents 4 are provided at three places in the bridge axis direction in the first step. Next, the sheet 7 is laid on the vent 4, and the erection girder 5 having a length about twice the length of the bridge girder 3 to be removed is installed on the sheet 7, and then the moving mechanism 13 is inserted. The suspension device 6 is installed on the rail 8 laid on the erection girder 5. In order to dispose the suspension material PC steel rod 12 disposed on the suspension device 6, the bridge girder 3
Open the through hole 17 from the bridge surface at the predetermined position of
The suspension material PC steel rod 12 is inserted into the through hole 17, and then the receiving beam 10 is installed near the lower surface support of the bridge girder 3 and is connected to the suspension material PC steel rod 12 by the bolt 14. As a result, as shown in FIG. 4A, the connection with the suspension device 6 to the bridge girder 3 to be removed is completed. By adjusting the number of lifting jacks 11 and hanging members PC steel rods 12 installed in order to lift the bridge girder 3, it is possible to cope with any shape, weight, etc. of the bridge girder 3.
【００１３】次に、吊り装置６の吊り梁９に設置された
橋桁昇降用ジャッキ１１により、吊り材ＰＣ鋼棒１２を
引き上げることにより、橋体を持ち上げ、所定の高さ、
すなわち、これから撤去しようとする橋桁３を持ち上げ
たときの吊り装置６の部分の下端が、まだ撤去されない
ままで残る橋桁３よりも上になるまで上昇させた後、吊
り材ＰＣ鋼棒１２を固定し、その状態で橋桁３に対して
前後端部に設置した吊り装置６を、同時に移動機構１３
により矢印Ｓで示す橋軸方向へ向け次の径間の橋面上又
は橋台背後の地面上に移動させる（図４（ｂ））。この
作業において、数本の吊り材ＰＣ鋼棒１２により、橋桁
３を持ち上げる場合、吊り材ＰＣ鋼棒１２に作用する張
力を一定に保つ必要がある。この実施例方法では、連動
ポンプを使用し、各橋桁昇降用ジャッキ１１の圧力を一
定に保つ方法や吊り材ＰＣ鋼棒１２の伸びと張力によ
り、吊り材ＰＣ鋼棒１２の張力を調整することにより一
定に保つことができる。Then, the bridge girder lifting jack 11 installed on the suspension beam 9 of the suspension device 6 lifts the suspension PC steel rod 12 to lift the bridge body to a predetermined height,
That is, after the bridge girder 3 to be removed is lifted, the lower end of the portion of the suspension device 6 is lifted up to be higher than the bridge girder 3 which has not been removed yet, and then the suspension member PC steel rod 12 is fixed. Then, in that state, the suspension device 6 installed at the front and rear ends of the bridge girder 3 is moved simultaneously with the moving mechanism 13
Is moved in the direction of the bridge axis indicated by arrow S onto the bridge surface of the next span or on the ground behind the abutment (Fig. 4 (b)). In this work, when the bridge girder 3 is lifted by several suspending material PC steel rods 12, it is necessary to keep the tension acting on the suspending material PC steel rods 12 constant. In this embodiment method, an interlocking pump is used, and the tension of the hanging material PC steel rod 12 is adjusted by a method of keeping the pressure of each jack girder up / down jack 11 constant or by the elongation and tension of the hanging material PC steel rod 12. Can be kept constant by.
【００１４】そして、前記のようにして移動された橋桁
３は、次径間の橋面上で待ち受けていた台車１８の上に
おろされ、この台車１８によって移動撤去される（図４
（ｃ））。Then, the bridge girder 3 moved as described above is put down on the carriage 18 waiting on the bridge surface of the next span, and moved and removed by this carriage 18 (FIG. 4).
(C)).
【００１５】この１つ目の橋桁３の撤去が済むと、次に
１つ先の橋脚２の上に新たにベント４を構築する。そし
て、この新しいベント４の上にシート７を敷いた後、エ
レクションガーダー５をウインチ等により矢印Ｓで示す
橋軸方向へ向け次の径間にまたがるよう引っ張り、移動
させる。そして、前記１つ目の橋桁３の撤去のときと同
様にして、２つ目の橋桁３に吊り装置６を連結し、その
撤去作業を開始する（図４（ｄ））。When the removal of the first bridge girder 3 is completed, a vent 4 is newly constructed on the pier 2 which is one ahead. Then, after laying the seat 7 on the new vent 4, the erection girder 5 is pulled by a winch or the like in the bridge axis direction indicated by the arrow S so as to straddle the next diameter and moved. Then, similarly to the case of removing the first bridge girder 3, the suspension device 6 is connected to the second bridge girder 3 and the removing work is started (FIG. 4 (d)).
【００１６】なお、この実施例においては、ベント４と
エレクションガーダー５との間にテフロン等から成るシ
ートを敷く例を挙げたが、このシートの代わりにコロを
設置してもよい。また、移動機構１３として自走式の台
車が挙げられているが、単なる台車でも良く、この台車
をウインチ等の装置で引っ張る方式を採用することも可
能である。In this embodiment, a sheet made of Teflon or the like is laid between the vent 4 and the erection girder 5, but a roller may be installed instead of this sheet. Although a self-propelled dolly is mentioned as the moving mechanism 13, it may be a mere dolly, and a method of pulling this dolly by a device such as a winch can be adopted.
【００１７】また、以上の説明では、高架、橋梁の幅が
狭い場合で、ベント４及びエレクションガーダー５の対
がいずれも高架、橋梁の両サイド外側に設置される例が
示されているが、高架、橋梁の幅が広い場合にはこのよ
うな撤去作業を遂行することはできない。このような幅
広の橋梁の場合は、橋梁を幅方向に２分割、あるいは３
分割となるように橋軸方向に切断し分割体毎に橋桁３を
撤去する。そしてベント４及びエレクションガーダー５
の対のうち、一方は橋脚２の端部に設置される一方、他
方はまだ撤去されない橋桁分割体の橋面上に設置され吊
り装置６を支持する。さらに、橋梁を幅方向に３分割し
た場合は、先ず幅方向に左右両側の橋桁分割体の橋面上
に一対のベント４及びエレクションガーダー５を組立て
て吊り装置６を移動し、中央部の橋桁分割体を撤去す
る。その次に前記ベント４、エレクションガーダー５お
よび吊り装置６を移動して、今度は橋桁分割体が撤去さ
れたために中央部分に露出した橋脚２の上にベント４及
びエレクションガーダー５を１組だけ組立てその上にて
んびん構造の吊り装置を設置する。そして、この吊り装
置の左右両側に残りの橋桁分割体をそれぞれ吊り下げ橋
軸方向へ移動させて撤去する、というような手順によっ
て橋梁を撤去することも可能である。In addition, in the above description, an example in which the pair of the vent 4 and the erection girder 5 is installed outside both sides of the elevated bridge when the width of the elevated bridge is narrow is shown. Such removal work cannot be performed when the width of the viaduct and bridge is wide. In the case of such a wide bridge, the bridge is divided into two in the width direction, or three
The bridge girder 3 is removed for each divided body by cutting in the axial direction of the bridge. And vent 4 and erection girder 5
Of the pair, one is installed at the end of the pier 2, while the other is installed on the bridge surface of the bridge girder division that has not been removed yet and supports the suspension device 6. Further, when the bridge is divided into three in the width direction, first, the pair of vents 4 and the erection girders 5 are assembled on the bridge surface of the bridge girder split body on the left and right sides in the width direction, the suspending device 6 is moved, and the bridge girder in the central portion is moved. Remove the split body. Then, the vent 4, the erection girder 5 and the suspension device 6 are moved to assemble only one set of the vent 4 and the erection girder 5 on the pier 2 exposed in the central part because the bridge girder division was removed. A suspension device with a bottle structure is installed on it. Then, the bridge can be removed by a procedure in which the remaining bridge girder divided bodies are respectively hung on the left and right sides of the suspension device and moved in the suspension bridge axial direction to be removed.
【００１８】[0018]
【発明の効果】以上のように、本発明による撤去方法
は、エレクションガーダーと特殊な吊り装置を使用し
て、既存の高架、橋梁を分割することなしに、横断道路
の交通に支障を来たさずにまた撤去対象高架、橋梁下の
諸条件に左右されず、安全にして効率よく高架、橋梁を
撤去することができる。なお、本発明による撤去方法
は、コンクリート橋に限らず、鋼橋にも利用することが
できるとともに、連続桁橋、ラーメン橋等各種の橋梁に
適用可能である。INDUSTRIAL APPLICABILITY As described above, the removal method according to the present invention uses the erection girder and the special suspension device and does not interfere with the traffic on the crossing road without dividing the existing elevated bridge and bridge. Without being affected by the elevated structures subject to removal and the conditions under the bridge, the elevated structures and bridges can be removed safely and efficiently. The removal method according to the present invention can be applied not only to concrete bridges but also to steel bridges, and can be applied to various bridges such as continuous girder bridges and ramen bridges.
【図１】本発明が適用される高架、橋梁の撤去装置の一
実施例を示す正面図である。FIG. 1 is a front view showing an embodiment of an elevated and bridge removing device to which the present invention is applied.
【図２】前記実施例の側面図である。FIG. 2 is a side view of the embodiment.
【図３】前記実施例の平面図である。FIG. 3 is a plan view of the embodiment.
【図４】本発明による高架、橋梁の撤去作業の手順を示
す図である。FIG. 4 is a diagram showing a procedure of work for removing an overpass and a bridge according to the present invention.
１ 橋台 ２ 橋脚 ３ 橋桁 ４ ベント ５ エレクションガーダー ６ 吊り装置 ７ シート ８ レール ９ 吊り梁 １０ 受梁 １１ 橋桁昇降用ジャッキ １２ 吊り材ＰＣ鋼棒 １３ 移動機構 1 abutment 2 bridge pier 3 bridge girder 4 vent 5 erection girder 6 suspension device 7 seat 8 rail 9 suspension beam 10 receiving beam 11 jack girder lifting jack 12 suspension material PC steel rod 13 moving mechanism
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原田 雅男 東京都港区北青山２−５−８ 株式会社間 組内 (72)発明者 佐倉 孝治 京都府京都市山科区勧修寺西栗栖野町54− ５ 株式会社ダイモ社内 (72)発明者 高津 輝男 福島県耶麻郡塩川町大字小府根字大谷地八 株式会社会津工建社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Harada 2-5-8 Kita-Aoyama, Minato-ku, Tokyo In-house Co., Ltd. (72) Inventor Koji Sakura 54-5, Nishikurisuno-cho, Kyoshuji, Yamashina-ku, Kyoto-shi, Kyoto Prefecture Company Daimo In-house (72) Inventor Teruo Takatsu Oochijihachi Oochiji, Shiokawa-cho, Yama-gun, Fukushima Prefecture Aizu Koken Co., Ltd.
Claims (2)
たは橋面にエレクションガーダーを配置し、エレクショ
ンガーダー上に吊り装置を設置する段階と、高架、橋梁
の橋桁下面の両支承付近に設置された受梁に吊り装置に
装備された吊り材ＰＣ鋼棒を連結する段階と、橋桁を吊
り装置に装備された橋桁昇降用ジャッキにより持ち上
げ、その状態で吊り装置をエレクションガーダーに沿っ
て橋軸方向に次の径間の橋面上または橋台背後の地盤上
に移動させる段階と、次の径間の橋面上または橋台背後
の地盤上に移動させた橋桁を運び出す段階とから成る高
架、橋梁の撤去方法。1. A step of installing an erection girder on both sides or a bridge surface of an elevated or bridge to be removed and installing a suspension device on the erection girder, and installed near both supports of the elevated girder and the lower surface of the bridge girder. The step of connecting the suspension material PC steel rod equipped to the suspension device to the receiving beam, and lifting the bridge girder by the bridge girder lifting jack equipped to the suspension device, and in that state the suspension device along the erection girder in the bridge axis direction. Of the overpass and the bridge, which consists of moving the bridge girder that has been moved to the next span on the bridge surface or the ground behind the abutment and carrying out the bridge girder that has been moved to the next span on the bridge surface or on the ground behind the abutment. Removal method.
されるエレクションガーダーと、このエレクションガー
ダーの上に設置される吊り装置とから成り、吊り装置
は、エレクションガーダーの上に当該エレクションガー
ダーにそって移動可能な吊り梁と、橋桁を下側から受け
る受梁と、吊り梁と受梁との間に結合されて橋桁を支持
する吊り材と、吊り梁上に設置され吊り材を昇降させる
ジャッキ部材とから構成されることを特徴とする高架、
橋梁の撤去装置。2. An erection girder disposed on both sides of a viaduct or a bridge or on a bridge surface, and a suspending device installed on the erection girder. The suspending device is mounted on the erection girder and attached to the erection girder. A suspension beam that can move along the bridge beam, a receiving beam that receives the bridge girder from below, a suspension member that is connected between the suspension beam and the receiving beam to support the bridge girder, and is installed on the suspension beam to raise and lower the suspension member. An elevated structure comprising a jack member,
Bridge removal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25280292A JPH073728A (en) | 1992-09-22 | 1992-09-22 | Removal of overhead bridge and bridge girder and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25280292A JPH073728A (en) | 1992-09-22 | 1992-09-22 | Removal of overhead bridge and bridge girder and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH073728A true JPH073728A (en) | 1995-01-06 |
Family
ID=17242436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25280292A Pending JPH073728A (en) | 1992-09-22 | 1992-09-22 | Removal of overhead bridge and bridge girder and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073728A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239313A (en) * | 2006-03-09 | 2007-09-20 | Arai Gumi Ltd | Bridge batch removal method |
| JP2014066007A (en) * | 2012-09-24 | 2014-04-17 | Nexco-East Engineering Co Ltd | Removal method of existent bridge and renewal method of existent bridge |
| JP5890060B1 (en) * | 2015-09-03 | 2016-03-22 | オリエンタル白石株式会社 | Bridge dismantling method using erection girder |
| CN108457207A (en) * | 2018-04-08 | 2018-08-28 | 中铁八局集团第二工程有限公司 | Utilize the method for the vertical line multispan bridge beam body dismounting of even carrying on the business of Bridge Erector |
| JP2021050512A (en) * | 2019-09-24 | 2021-04-01 | Ｊｒ東日本コンサルタンツ株式会社 | Bridge replacement method and bridge upper structure |
| WO2021120687A1 (en) * | 2019-12-19 | 2021-06-24 | 中建科工集团有限公司 | Method for entire removal of space truss and assistive support mechanism |
| CN114182654A (en) * | 2021-12-28 | 2022-03-15 | 中铁七局集团有限公司 | Railway box girder transverse moving and falling device and dismantling construction method |
-
1992
- 1992-09-22 JP JP25280292A patent/JPH073728A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239313A (en) * | 2006-03-09 | 2007-09-20 | Arai Gumi Ltd | Bridge batch removal method |
| JP2014066007A (en) * | 2012-09-24 | 2014-04-17 | Nexco-East Engineering Co Ltd | Removal method of existent bridge and renewal method of existent bridge |
| JP5890060B1 (en) * | 2015-09-03 | 2016-03-22 | オリエンタル白石株式会社 | Bridge dismantling method using erection girder |
| JP2017048635A (en) * | 2015-09-03 | 2017-03-09 | オリエンタル白石株式会社 | Bridge disassembly method of using installation girder |
| CN108457207A (en) * | 2018-04-08 | 2018-08-28 | 中铁八局集团第二工程有限公司 | Utilize the method for the vertical line multispan bridge beam body dismounting of even carrying on the business of Bridge Erector |
| CN108457207B (en) * | 2018-04-08 | 2020-05-19 | 中铁八局集团第二工程有限公司 | Method for dismantling multi-span bridge body of operation line by utilizing longitudinal connection of bridge girder erection machine |
| JP2021050512A (en) * | 2019-09-24 | 2021-04-01 | Ｊｒ東日本コンサルタンツ株式会社 | Bridge replacement method and bridge upper structure |
| WO2021120687A1 (en) * | 2019-12-19 | 2021-06-24 | 中建科工集团有限公司 | Method for entire removal of space truss and assistive support mechanism |
| CN114182654A (en) * | 2021-12-28 | 2022-03-15 | 中铁七局集团有限公司 | Railway box girder transverse moving and falling device and dismantling construction method |
| CN114182654B (en) * | 2021-12-28 | 2023-05-26 | 中铁七局集团有限公司 | Railway box girder transverse falling device and dismantling construction method |
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