JP2004107972A - Launching method and launching machine for bridge - Google Patents

Launching method and launching machine for bridge Download PDF

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Publication number
JP2004107972A
JP2004107972A JP2002271104A JP2002271104A JP2004107972A JP 2004107972 A JP2004107972 A JP 2004107972A JP 2002271104 A JP2002271104 A JP 2002271104A JP 2002271104 A JP2002271104 A JP 2002271104A JP 2004107972 A JP2004107972 A JP 2004107972A
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JP
Japan
Prior art keywords
hand
rolling machine
roller
pier
tip
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JP2002271104A
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Japanese (ja)
Inventor
Shinsuke Kondo
近藤 伸介
Yasuyuki Tanji
丹治 康行
Shuji Sato
佐藤 修二
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Priority to JP2002271104A priority Critical patent/JP2004107972A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a launching method for a bridge in which a feeder, a receiving stand, a lifting facility or the like need not be installed previously to the upper section of the bridge and a pier-facility mounting process can be shortened and an economical load can be lightened, and a launching machine for use in the method. <P>SOLUTION: The front-end launching machine pivotally supported and connected at the connecting end of a launching machine body is launched under a state that the launching machine is tilted upward and brought into contact successively with the top face of the bridge from a roller at a head disposed on the bottom of the front-end launching machine, and a roller with a vertical jack is brought into contact with the top face of the bridge. The launching machine is loaded on a pier by the roller with the vertical jack, the feeder is installed on the pier under a state that the launching machine is loaded on the feeder and the vertical jack for the roller with the vertical jack is shortened and the launching machine is launched again by the feeder. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、橋梁を橋脚間に架設するための橋梁の送出し工法及びその工法に使用される手延機に関する。
【0002】
【従来の技術】
図11は、従来の手延機を用いて、従来の工法により橋梁の送出しを行い、橋梁を橋脚間に架設している先端部分の状況を示す側面図である。
【0003】
図中20は橋梁を構成する橋体で、その先端部には連結構22を介して手延機21が装着されており、各橋体20は送出しヤード23上において順次連結されている。但し、各橋体20は送出しヤード23上で全て連結しておいてもよい。
【0004】
0 は送出しヤード23の先端部の橋脚で、その橋脚P0 の上部には送り装置24が設けられ、又、次の橋脚P1 の上部には送り装置24と受け架台25とが設けられている。
【0005】
また、26は台車式推進装置で、送出しヤード23上に施設されたレール27上を走行し、手延機21を送出し得るようになっている。
【0006】
送出しヤード23上で連結された各橋体20は、台車式推進装置26及び橋脚P0 上の送り装置24上に載架され、台車式推進装置26をレール27に沿って前進させることにより、手延機21を次の橋脚P1 上に到達させて、その先端部を橋脚P1 上部の送り装置24上に載架させ、順次送出しを行って橋梁が橋脚上の所定位置に全部到達した段階で、送り装置24をジャッキダウンして橋梁を橋脚上に設けた受け架台25上に載置し、橋梁を橋脚間に架設するようにしている。
【0007】
この時、手延機21の送出しに当り、手延機21が撓むと、手延機21の水平を維持することが困難となり、手延機21の先端が橋脚P1 上に到達したときに、送り装置24上にスムーズに載架させることができなくなる恐れがある。
【0008】
そこで、手延機21の連結構22側にジャッキを設け、ジャッキに元付けされたケーブルを、手延機21との間に間隔をあけてケーブルの先端を手延機21の先端上面に係止し、そのケーブルの張力で手延機21の撓みを防止して、手延機21の水平を維持し、橋梁を橋脚間にスムーズに架設するようにした橋梁の送出し工法や、その工法に使用される手延機等が提案されている。(例えば特許文献1参照)。
【0009】
【特許文献1】
特開2001−193016号公報(第2〜3頁、図1〜図3参照)
【0010】
【発明が解決しようとする課題】
従来の橋梁の送出し工法及びその工法に使用される手延機を用いて橋梁を橋脚間に架設するに際しては、全ての橋脚の上部に送り装置24や受け架台25ならびに支承等を事前に据付ておく必要があり、特に据付される橋脚下の場所が移動式クレーンの配置の困難な工事用場所や、敷地が狭小な場所であったり、河川の渇水期間中であると、工事用場所道路の確保や送出し作業期間の確保等が制約されて経済的負担となり、工程の短期化等が要求されることになる。
【0011】
又、移動式クレーンとは別の揚重設備としてケーブルクレーン等を使用することもあるが、前記の経済的負担や工期の短期化等の要求に充分に対応することはできない。
【0012】
又、従来の工法において、手延機21の先端を橋脚上の設備により引上げて送出したり、手延機21の桁上部にレールを配置して資機材を運搬したり、手延機21の桁上部に配置したレール上に揚重設備を設置することもあるが、橋脚上の設備により手延機21の先端を引上げする場合にも、事前に橋脚上設備の設置を必要とし、地上から高い橋脚や渇水期における河川中の橋脚の場合においては、工事用道路の拡幅やクレーン配置箇所の敷地の確保、揚重設備としてのケーブルクレーンの設置等から、工事の工程においても、経済的にも負担が生じることになる。
【0013】
特に昨今の橋梁は、免震沓の採用により重量が増加し、橋脚上へ設置する揚重設備が大型化していると共に、手延機21の桁上部にレールを配置して資機材を運搬する場合には、橋脚上に揚重する別設備を必要とし、かつ手延機21を事前に仮受するための設備ならびにその設備を設置する揚重設備を必要とし、経済的にも工期においても大きな負担となっている。
【0014】
本発明は上記従来の問題点を解消するために提案されたもので、橋脚の上部に送り装置や受け架台、手延機の先端部を引上げるための設備や資機材を揚重する別設備等を事前に橋脚の上部に据付ておく必要はなく、又、橋脚下に工事用場所や工事用道路を設けることなく橋梁の送出しを行うことができ、橋脚設備設置工程の短縮化が図れると共に、経済的負担を軽減し得る、橋梁を橋脚間に架設するための橋梁の送出し工法及びその工法に使用される手延機を提供することを課題とするものである。
【0015】
【課題を解決するための手段】
上記課題を解決するために、請求項1の発明は、手延機本体の接続端に枢支して接続された先端手延機を、上向に傾倒させた状態で送出し、先端手延機の底部に所定の間隔をおいて配設された複数のローラを、先頭のローラから順次橋脚上面に接触させて行き、手延機本体の先端部の下部に設けた鉛直ジャッキ付ローラを橋脚上面に接触させた後、その鉛直ジャッキ付ローラで手延機を橋脚上に載架せしめ、その状態で送り装置を橋脚上に設置して手延機を送り装置に載架し、鉛直ジャッキ付ローラの鉛直ジャッキを縮短させて送り装置により再度送出しをするようにしたことを特徴とする橋梁の送出し工法とした。
【0016】
これにより、橋脚の上部に送り装置や受け架台、手延機の先端部を引上げるための設備や資機材を揚重する別設備等を事前に橋脚の上部に据付ておく必要はなく、又、橋脚下に工事用場所や工事用道路を設けることなく橋梁の送出しを行うことができ、橋脚設備設置工程の短縮化が図れると共に、経済的負担を軽減し得る、橋梁を橋脚間に架設するための橋梁の送出し工法を提供することができる。
【0017】
また、請求項2の発明は、請求項1に記載の橋梁の送出し工法において、鉛直ジャッキ付ローラで手延機を橋脚上に載架せしめた状態で、手延機本体に配設した運搬用レールにより送り装置を運搬し、手延機本体の先端部に設けた揚重設備により送り装置を橋脚上に設置するようにしたことを特徴としている。
【0018】
これにより、請求項1に記載の橋梁の送出し工法において、送り装置はスムーズに運搬され、短時間に橋脚上に設置することができることになる。
【0019】
また、請求項3の発明は、手延機本体と先端手延機を、それぞれの接続端の下端突出部に設けたヒンジ部を介して接続すると共に、接続端の上端部に設けた油圧ジャッキを介して接続して先端手延機を上向に傾倒可能に枢支し、手延機本体の先端部の下部に鉛直ジャッキ付ローラを配設すると共に、先端手延機の底部に所定の間隔をおいてローラを複数個配設したことを特徴とする手延機とした。
【0020】
これにより、手延機をスムーズに橋脚上に載架して橋梁の送り出しをすることができ、請求項1に記載の橋梁の送出し工法を実現するために必要な手延機を提供することができる。
【0021】
また、請求項4の発明は、請求項3に記載の手延機において、手延機本体に送り装置を運搬する運搬用レールを配設すると共に、手延機本体の先端部に、送り装置を橋脚上に設置するための揚重設備を設けたことを特徴としている。
【0022】
これにより、請求項3に記載の手延機において、送り装置をスムーズに運搬し、短時間に橋脚上に設置し得る構成とすることができる。
【0023】
また、請求項5の発明は、請求項3又は4に記載の手延機において、手延機本体に作業員が通行するための歩行路を設けると共に、手延機本体の先端部に、鉛直ジャッキ付ローラと油圧ジャッキを作動させるための油圧操作箇所を配置したことを特徴としている。
【0024】
これにより、請求項3又は4に記載の手延機において、作業員は油圧操作箇所でスムーズに鉛直ジャッキ付ローラと油圧ジャッキを操作することができ、操作性を向上させることができる。
【0025】
また、請求項6の発明は、請求項5に記載の手延機において、手延機本体の先端部に、作業員を歩行路より橋脚上に降下させる昇降梯子を設けたことを特徴としている。
【0026】
これにより、請求項5に記載の手延機において、作業員の橋脚上への昇降が容易となり、橋梁の送出し工法を、安全かつスムーズに行うことができることになる。
【0027】
【発明の実施の形態】
本発明の橋梁の送出し工法及びその工法に使用される手延機の実施の一形態について、図1〜図10に基づき説明する。
【0028】
図1は本発明の橋梁の送出し工法に使用される手延機の実施の一形態を示す側面図で、図2は図1に示す手延機の平面図である。
【0029】
図中Aは手延機で、手延機Aは手延機本体1と先端手延機2から構成されている。手延機本体1と先端手延機2とは、それぞれの接続端の下端突出部をヒンジ部3を介して接続されており、先端手延機2の先端側が上向に傾倒し得るようになっている。
【0030】
なお、図示は省略しているが、手延機本体1の後端には、架設される橋梁の橋体を構成する本体桁が連結されている。
【0031】
4は手延機本体1と、先端手延機2の上端部を接続する油圧ジャッキで、その油圧ジャッキ4を操作することで、先端手延機2はヒンジ部3に枢支されて上向に傾倒し、油圧によってその位置を維持するように構成されている。
【0032】
5は鉛直ジャッキ付ローラで、手延機本体1の先端部の下部に図示のように配設されており、先端手延機2の底部には、所定の間隔をおいてローラ6が複数個配設されている。
【0033】
なお、7は手延機本体1の内部を作業員が通行するための歩行路で、その底面側には資材や備品等を運搬する運搬用レール8が配設されている。
【0034】
9は運搬用レール8により運搬されて来る送り装置で、10は運搬されて来たその送り装置9等を橋脚P1 上に設置するために、手延機本体1の先端部に設けられた揚重設備である。
【0035】
11は鉛直ジャッキ付ローラ5の操作や先端手延機2の上向き角度を調整する油圧ジャッキ4を作動させるための油圧操作箇所(操作盤)で、手延機本体1の先端部に配置されている。
【0036】
但し、油圧操作箇所11は、他の位置に配置することもできるが、本実施形態では、できるだけ作業場所に接近させて作業を監視できるようにするために、手延機本体1の先端部に配置している。手延機本体1の先端部には、揚重設備10が設けられているので、設備を集中して配置することを考慮したものである。
【0037】
なお、12は作業員を歩行路7より橋脚P1 上に降下させる時に使用する昇降梯子で、この昇降梯子12も手延機本体1の先端部に配設されている。
【0038】
なお、図中の橋脚P1 は、すべての橋脚の代表として図示したものである。
【0039】
本実施形態の手延機Aは上記のように構成されているので、橋梁の送出しをするに際しては、送出しする橋梁の橋体の桁本体の先端に手延機本体1を装着し、更にそれに続けてヒンジ部3と油圧ジャッキ4を介して先端手延機2を送出しヤード上において組立する。
【0040】
送出し作業において、橋脚P1 に先端手延機2が接近すると、橋脚P1 上に先端手延機2の底部に設けたローラ6を接触させ、油圧ジャッキ4を伸長させて送出しを行うことにより次のローラ6を橋脚P1 上に接触させ、それらの作業を交互に行うことにより手延機本体1の先端部の下部に配設した鉛直ジャッキ付ローラ5を橋脚P1 上に接触させた後、計算値に基づいた反力になるように鉛直ジャッキを作動させる。
【0041】
鉛直ジャッキを作動させる為に、手延機本体1の内部に設けた歩行路7を通って作業員を油圧操作箇所11に配置し、操作させる。
【0042】
その後、手延機本体1の歩行路7の底面側に設けた運搬用レール8を用いて、送出しヤードより送り装置9を運搬し、揚重設備10にて橋脚P1 上に配置する。
【0043】
次に、送り装置9を機能させ、鉛直ジャッキ付ローラ5の鉛直ジャッキを縮短させて、再度送出し作業を進める。このようにして、次橋脚上も同様な作業を行い、安全かつ経済的に連続して橋梁の送出し作業を行うことができる。
【0044】
本工法においては、免震沓の運搬も運搬用レール8若しくは橋梁の桁本体の横桁に仮装着させ、所定の位置へ運搬することも出来る。
【0045】
次に図1及び図2に示す本実施形態の手延機Aを用いて、橋脚上に事前に仮設備等を設置することなく、橋梁を橋脚間に架設する橋梁の送出し工法を、図3〜図10に基づいて説明する。
【0046】
図3は本発明の橋梁の送出し工法の実施の一形態における橋脚到達直前の手延機の先端部分の状況図である。
手延機Aは手延機Aならびに後続する橋梁の桁本体の張出し梁状態で下方へ撓みを生じているが、先端手延機2は橋脚P1 に到達させるべく、油圧ジャッキ4により上向に傾倒して仰角を与えられている。この状態で歩行路7を通って作業員を油圧操作箇所(操作盤)11に配置し、油圧ジャッキ4の操作を行わせる。但し、TVカメラによる後方での遠隔操作による場合には、必ずしも作業員を配置しておく必要はない。
【0047】
図4は油圧ジャッキにより仰角を大きく与えて先端手延機を橋脚上面に乗るべく操作を行った先端部分の状況図である。
先端手延機2の底部に配設した先頭のローラ6を橋脚P1 上面に接触させ、送出しヤードでの台車式推進装置により手延機A、橋梁の桁本体を前方へ送出しする。
送出しと共に次のローラ6と橋脚P1 の前面を干渉させないように、先端手延機2に更に仰角を与えるため、油圧ジャッキ4を操作させる。この操作時は前方への送出し作業を停止して行う。
【0048】
図5は油圧ジャッキにより更に仰角を大きく与えて、次のローラが橋脚上面に乗るべく操作を行った先端部分の状況図である。
この図でわかるように、ローラ6の間隔は橋脚P1 の幅より狭く配置されている。
【0049】
図6は次のローラが橋脚上面に乗った先端部分の状況図である。
この状態では手延機Aや橋梁の桁本体による撓みはほとんど解消されており、橋脚P1 上の障害物およびローラ6の異常がなければ繰返し送出しを行う。
【0050】
図7は最終のローラとなる鉛直ジャッキ付ローラが橋脚上に乗った先端部分の状況図である。
鉛直ジャッキは、計算値に基づいた荷重になるように、油圧操作箇所11において油圧操作を行うことにより、橋脚P1 上ではストロークの伸縮(主として伸びる)となる。
この状態で初めて、作業員を歩行路7より昇降梯子12を用いて橋脚P1 上に降下させることが出来る。
【0051】
図8は後方より運搬用レールによって送り装置が運ばれてきた先端部分の状況図である。
運搬に必要な駆動力は、歩行路7伝いの人力によるロープ牽引でも構わない。なお、橋脚P1 上から作業員が墜落するのを防止するため、橋脚P1 の周囲にはネットや手摺等の安全具Mを設けることが望ましい。
【0052】
図9は運ばれてきた送り装置を揚重設備により橋脚上に設置した先端部分の状況図である。
この状態ではまだ鉛直ジャッキ付ローラ5で全ての反力を担っている。
【0053】
図10は送り装置によりさらに前方へ送出した先端部分の状況図である。
送り装置9の鉛直ジャッキを作動させて鉛直ジャッキ付ローラ5を開放させ、鉛直ジャッキ付ローラ5のジャッキを縮短して送り装置9により前方へ送出している。
【0054】
なお、本実施の形態においては、手延機Aは板構造の手延機本体1とトラス構造の先端手延機2から構成しているが、手延機A全体をトラス構造にしてもよく、手延機A全体を板構造に構成することも可能である。
【0055】
また、本実施の形態においては、歩行路7の底面側に運搬用レール8を配設しているが、運搬用レール8は手延機本体1を構成する底部桁材の両側面に配設してもよいし、桁材と兼用させることも可能である。
【0056】
また、鉛直ジャッキ付ローラ5やローラ6、送り装置9、揚重設備10、昇降梯子12等は、図示の形状等に限定されるものではなく、必要に応じて任意に設計し得ることは言うまでもない。
【0057】
【発明の効果】
請求項1の発明は、手延機本体の接続端に枢支して接続された先端手延機を、上向に傾倒させた状態で送出し、先端手延機の底部に所定の間隔をおいて配設された複数のローラを、先頭のローラから順次橋脚上面に接触させて行き、手延機本体の先端部の下部に設けた鉛直ジャッキ付ローラを橋脚上面に接触させた後、その鉛直ジャッキ付ローラで手延機を橋脚上に載架せしめ、その状態で送り装置を橋脚上に設置して手延機を送り装置に載架し、鉛直ジャッキ付ローラの鉛直ジャッキを縮短させて送り装置により再度送出しをするような橋梁の送出し工法としたので、橋脚の上部に送り装置や受け架台、手延機の先端部を引上げるための設備や資機材を揚重する別設備等を事前に橋脚の上部に据付ておく必要はなく、又、橋脚下に工事用場所や工事用道路を設けることなく橋梁の送出しを行うことができ、橋脚設備設置工程の短縮化が図れると共に、経済的負担を軽減することができる。
【0058】
また、請求項2の発明は、請求項1に記載の橋梁の送出し工法において、鉛直ジャッキ付ローラで手延機を橋脚上に載架せしめた状態で、手延機本体に配設した運搬用レールにより送り装置を運搬し、手延機本体の先端部に設けた揚重設備により送り装置を橋脚上に設置するようにしたので、請求項1に記載の橋梁の送出し工法において、送り装置はスムーズに運搬され、短時間に橋脚上に設置することができる。
【0059】
また、請求項3の発明は、手延機本体と先端手延機を、それぞれの接続端の下端突出部に設けたヒンジ部を介して接続すると共に、接続端の上端部に設けた油圧ジャッキを介して接続して先端手延機を上向に傾倒可能に枢支し、手延機本体の先端部の下部に鉛直ジャッキ付ローラを配設すると共に、先端手延機の底部に所定の間隔をおいてローラを複数個配設して手延機を構成したので、手延機をスムーズに橋脚上に載架して橋梁の送出しをすることができ、請求項1に記載の橋梁の送り出し工法を実現するために必要な手延機を提供することができる。
【0060】
また、請求項4の発明は、請求項3に記載の手延機において、手延機本体に送り装置を運搬する運搬用レールを配設すると共に、手延機本体の先端部に、送り装置を橋脚上に設置するための揚重設備を設けたので、請求項3に記載の手延機において、送り装置をスムーズに運搬し、短時間に橋脚上に設置し得る構成とすることができる。
【0061】
また、請求項5の発明は、請求項3又は4に記載の手延機において、手延機本体に作業員が通行するための歩行路を設けると共に、手延機本体の先端部に、鉛直ジャッキ付ローラと油圧ジャッキを作動させるための油圧操作箇所を配置したので、請求項3又は4に記載の手延機において、作業員は油圧操作箇所でスムーズに鉛直ジャッキ付ローラと油圧ジャッキを操作することができ、操作性を向上させることができる。
【0062】
また、請求項6の発明は、請求項5に記載の手延機において、手延機本体の先端部に、作業員を歩行路より橋脚上に降下させる昇降梯子を設けたので、請求項5に記載の手延機において、作業員の橋脚上への昇降が容易となり、橋梁の送出し工法を、安全かつスムーズに行うことができることになる。
【0063】
本発明は以上のような効果を有し、橋梁を橋脚間に架設する上で、実用上きわめて有効な橋梁の送出し工法及び手延機を提供することができる。
【図面の簡単な説明】
【図1】本発明の橋梁の送出し工法に使用される手延機の実施の一形態を示す側面図である。
【図2】図1に示す手延機の平面図である。
【図3】本発明の橋梁の送出し工法の実施の一形態における橋脚到達直前の手延機の先端部分の状況図である。
【図4】油圧ジャッキにより仰角を大きく与えて先端手延機を橋脚上面に乗るべく操作を行った先端部分の状況図である。
【図5】油圧ジャッキにより更に仰角を大きく与えて、次にローラが橋脚上面に乗るべく操作を行った先端部分の状況図である。
【図6】次のローラが橋脚上面に乗った先端部分の状況図である。
【図7】最終のローラとなる鉛直ジャッキ付ローラが橋脚上に乗った先端部分の状況図である。
【図8】後方より運搬用レールによって送り装置が運ばれてきた先端部分の状況図である。
【図9】運ばれてきた送り装置を揚重設備により橋脚上に設置した先端部分の状況図である。
【図10】送り装置によりさらに前方へ送り出した先端部分の状況図である。
【図11】従来の手延機を用いて、従来の工法により橋梁の送出しを行い、橋梁を橋脚間に架設している先端部分の状況を示す側面図である。
【符号の説明】
A     手延機
0 ,P1  橋脚
1     手延機本体
2     先端手延機
3     ヒンジ部
4     油圧ジャッキ
5     鉛直ジャッキ付ローラ
6     ローラ
7     歩行路
8     運搬用レール
9     送り装置
10    揚重設備
11    油圧操作箇所
12    昇降梯子
M     ネットや手摺等の安全具
20    橋体
21    手延機
22    連結構
23    送出しヤード
24    送り装置
25    受け架台
26    台車式推進装置
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bridge delivery method for erection of a bridge between piers, and a hand-rolling machine used in the method.
[0002]
[Prior art]
FIG. 11 is a side view showing a state of a tip end portion where a bridge is sent out by a conventional construction method using a conventional hand rolling machine and the bridge is erected between piers.
[0003]
In the figure, reference numeral 20 denotes a bridge body constituting a bridge, and a hand-rolling machine 21 is attached to a leading end of the bridge body via a connecting structure 22. The bridge bodies 20 are sequentially connected on a delivery yard 23. However, all the bridge bodies 20 may be connected on the sending yard 23.
[0004]
P 0 is a pier at the tip of the delivery yard 23, a feeder 24 is provided above the pier P 0 , and a feeder 24 and a receiving stand 25 are provided above the next pier P 1. Have been.
[0005]
Reference numeral 26 denotes a bogie type propulsion device, which runs on a rail 27 provided on a delivery yard 23 and can deliver the hand roll 21.
[0006]
Each of the bridge bodies 20 connected on the delivery yard 23 is mounted on a bogie type propulsion device 26 and a feed device 24 on the pier P 0 , and the bogie type propulsion device 26 is advanced along a rail 27. , all Tenobeki 21 allowed to reach on the next pier P 1, at its distal end is rests on piers P 1 upper feeder 24 sequentially sends predetermined position bridges on piers performed At this stage, the feeder 24 is jacked down and the bridge is placed on the receiving stand 25 provided on the pier, so that the bridge is erected between the piers.
[0007]
In this case, hit the sending of Tenobeki 21, the Tenobeki 21 flexes, it is difficult to maintain the horizontal Tenobeki 21, when the tip of Tenobeki 21 reaches on the pier P 1 In addition, there is a possibility that the robot cannot be smoothly mounted on the feeder 24.
[0008]
Therefore, a jack is provided on the connecting structure 22 side of the hand-rolling machine 21, and the cable attached to the jack is connected to the hand-rolling machine 21 at an interval between the cable and the front end of the cable. The bridge delivery method and the method for preventing the bending of the hand-rolling machine 21 by the tension of the cable, keeping the hand-rolling machine 21 horizontal, and smoothly erection of the bridge between the piers, and the like. Hand rolling machines and the like to be used for such devices have been proposed. (See, for example, Patent Document 1).
[0009]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2001-193016 (pages 2-3, see FIGS. 1-3)
[0010]
[Problems to be solved by the invention]
When a bridge is to be installed between piers using a conventional bridge delivery method and a hand-rolling machine used in the method, a feeder 24, a receiving stand 25, a bearing, and the like are installed in advance on all the piers. In particular, if the location under the pier to be installed is a construction site where mobile cranes are difficult to locate, or if the site is narrow or the river is drought, the construction site road Therefore, the securing of the transmission time and the transmission operation period are restricted, resulting in an economic burden, and a short process is required.
[0011]
Further, a cable crane or the like may be used as a lifting equipment different from the mobile crane, but it cannot sufficiently cope with the above-mentioned demands such as an economic burden and a shortened construction period.
[0012]
Further, in the conventional construction method, the tip of the hand-rolling machine 21 is pulled up by equipment on the pier and sent out, or a rail is arranged above the girder of the hand-rolling machine 21 to transport materials and equipment. Lifting equipment may be installed on the rails located above the girder. However, when lifting the tip of the handroller 21 by equipment on the pier, installation of the equipment on the pier is required in advance, and In the case of high piers or piers in rivers during the drought season, widening of construction roads, securing site for crane placement, installation of cable cranes as lifting equipment, etc. are economical in the construction process. Will also be burdensome.
[0013]
Especially in recent bridges, the weight has increased due to the adoption of seismic isolation shoes, the lifting equipment installed on the piers has become larger, and rails are arranged above the girder of the hand-rolling machine 21 to transport materials and equipment. In this case, a separate facility for lifting on the pier is required, and a facility for temporarily receiving the hand roll 21 in advance and a lifting facility for installing the facility are required. It is a heavy burden.
[0014]
SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned conventional problems, and includes a feeder, a gantry, a facility for pulling up a tip of a hand-rolling machine, and a separate facility for lifting materials and equipment. It is not necessary to install them on the upper part of the pier in advance, and the bridge can be sent out without installing a construction site or construction road under the pier, and the pier installation process can be shortened. Another object of the present invention is to provide a bridge delivery method for erection of a bridge between piers and a hand-rolling machine used in the method, which can reduce an economic burden.
[0015]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is to send a tip hand-roller pivotally connected to a connection end of a hand-roller body in a state of being tilted upward, and to feed the tip hand-roller. A plurality of rollers arranged at a predetermined interval at the bottom of the machine are brought into contact with the upper surface of the pier sequentially from the top roller, and the roller with a vertical jack provided at the lower portion of the tip of the hand-rolling machine body is connected to the pier. After making contact with the upper surface, the hand roll is mounted on the pier with the roller with the vertical jack, and in that state, the feeder is installed on the pier, and the hand roll is mounted on the feeder, and the vertical jack is attached. The vertical jack of the roller is shortened, and is sent out again by a feeder.
[0016]
As a result, there is no need to install in advance the feeder, cradle, equipment for lifting the tip of the handroller, separate equipment for lifting materials and equipment, etc. above the pier in advance, and The bridge can be delivered without the need for a construction site or construction road beneath the pier, which can shorten the pier installation process and reduce the economical burden. A bridge delivery method can be provided.
[0017]
According to a second aspect of the present invention, in the method for delivering a bridge according to the first aspect, the hand-rolling machine is mounted on the main body of the hand-rolling machine while the hand-rolling machine is mounted on the pier with a roller with a vertical jack. The feeding device is transported by a rail for use, and the feeding device is installed on a pier by a lifting device provided at a tip end portion of a hand-rolling machine main body.
[0018]
Thus, in the bridge delivery method according to the first aspect, the delivery device can be smoothly transported, and can be installed on the pier in a short time.
[0019]
Further, the invention of claim 3 connects the hand-rolling machine main body and the leading hand-rolling machine via a hinge portion provided at a lower end projecting portion of each connection end, and a hydraulic jack provided at an upper end portion of the connection end. , The tip handroller is pivotably supported to tilt upward, a roller with a vertical jack is provided below the tip of the handroller main body, and a predetermined jack is provided at the bottom of the tip handroller. A hand-rolling machine is characterized in that a plurality of rollers are arranged at intervals.
[0020]
Thereby, the hand roll can be smoothly mounted on the pier and the bridge can be sent out, and a hand roll required for realizing the bridge sending method according to claim 1 is provided. Can be.
[0021]
According to a fourth aspect of the present invention, in the hand-rolling machine according to the third aspect, a transport rail for transporting the feeding device is provided on the main body of the hand-rolling machine, and the feeding device is provided at a tip end of the main body of the hand-rolling machine. It is characterized by the provision of a lifting facility for installing on a pier.
[0022]
Thus, in the hand-rolling machine according to the third aspect, it is possible to adopt a configuration in which the feeding device can be smoothly transported and installed on the pier in a short time.
[0023]
According to a fifth aspect of the present invention, in the hand-rolling machine according to the third or fourth aspect, a walking path for a worker to pass is provided in the hand-rolling machine main body, and a vertical portion is provided at a tip end of the hand-rolling machine main body. It is characterized by arranging a hydraulic roller for operating a jack-equipped roller and a hydraulic jack.
[0024]
Thus, in the hand-rolling machine according to the third or fourth aspect, the operator can smoothly operate the vertical jack-equipped roller and the hydraulic jack at the hydraulically operated location, thereby improving operability.
[0025]
According to a sixth aspect of the present invention, in the hand-rolling machine according to the fifth aspect, a lifting ladder for lowering a worker from a walking path onto a pier is provided at a tip end of the hand-rolling machine main body. .
[0026]
Thus, in the hand roll machine according to the fifth aspect, it is easy for the worker to ascend and descend on the pier, and the bridge delivery method can be performed safely and smoothly.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a bridge delivery method of the present invention and a hand-rolling machine used in the method will be described with reference to FIGS.
[0028]
FIG. 1 is a side view showing an embodiment of a hand-rolling machine used in the bridge delivery method of the present invention, and FIG. 2 is a plan view of the hand-rolling machine shown in FIG.
[0029]
In the figure, A denotes a hand-rolling machine, and the hand-rolling machine A includes a hand-rolling machine main body 1 and a tip hand-rolling machine 2. The hand roll main body 1 and the tip hand roll 2 are connected to each other at a lower end protruding portion of the connection end via a hinge portion 3 so that the tip side of the tip hand roll 2 can be tilted upward. Has become.
[0030]
Although not shown, a main body girder constituting a bridge body of a bridge to be erected is connected to a rear end of the hand roll machine main body 1.
[0031]
Reference numeral 4 denotes a hydraulic jack connecting the hand roll machine main body 1 and the upper end of the tip hand roll machine 2. By operating the hydraulic jack 4, the tip hand roll machine 2 is pivotally supported by the hinge part 3 and faces upward. To maintain its position by hydraulic pressure.
[0032]
Reference numeral 5 denotes a roller with a vertical jack, which is disposed below the tip of the main unit 1 as shown in the figure. It is arranged.
[0033]
Reference numeral 7 denotes a walking path through which the worker passes through the inside of the main unit 1, and a transport rail 8 for transporting materials, equipment, and the like is provided on the bottom side thereof.
[0034]
9 is a feeder coming being transported by the transporting rail 8, 10 to the feed device 9 or the like came be transported is placed on the piers P 1, provided at the distal end of Tenobe machine body 1 Lifting equipment.
[0035]
Reference numeral 11 denotes a hydraulic operating portion (operation panel) for operating the vertical jack-equipped roller 5 and for operating the hydraulic jack 4 for adjusting the upward angle of the hand-rolling machine 2, which is disposed at the front end of the hand-rolling machine main body 1. I have.
[0036]
However, the hydraulic operating point 11 can be arranged at another position. However, in this embodiment, in order to be able to monitor the work by approaching the work place as much as possible, the hydraulic operation part 11 is provided at the tip end of the hand-rolling machine main body 1. Have been placed. Since the lifting equipment 10 is provided at the tip of the hand rolling machine main body 1, consideration is given to arranging the equipment in a concentrated manner.
[0037]
Reference numeral 12 denotes an elevating ladder used when lowering the worker from the walking path 7 onto the pier P 1 , and the elevating ladder 12 is also disposed at the tip end of the main unit 1.
[0038]
Incidentally, piers P 1 in the drawing is an illustration of a representative of all the piers.
[0039]
Since the hand-rolling machine A of the present embodiment is configured as described above, when sending out a bridge, the hand-rolling machine main body 1 is attached to the tip of the girder body of the bridge body of the bridge to be sent out, Subsequently, the tip hand roll 2 is sent out via the hinge portion 3 and the hydraulic jack 4, and is assembled on the yard.
[0040]
Performed in delivery work, when a pier P 1 tip Tenobe machine 2 approaches, is brought into contact with roller 6 provided in the bottom of the tip Tenobe machine 2 on piers P 1, it was sent by extending the hydraulic jack 4 Thus, the next roller 6 is brought into contact with the pier P 1 , and the work is performed alternately, whereby the roller 5 with the vertical jack disposed at the lower portion of the tip of the hand-rolling machine main body 1 is brought into contact with the pier P 1. After that, the vertical jack is operated so as to obtain a reaction force based on the calculated value.
[0041]
In order to operate the vertical jack, an operator is arranged at the hydraulic operation point 11 through a walking path 7 provided inside the hand roll machine main body 1 and operated.
[0042]
Then, by using the carrying rail 8 provided on the bottom side of the walkway 7 of Tenobe machine body 1, delivery and transport the feed device 9 from the yard, placed on piers P 1 in lifting equipment 10.
[0043]
Next, the feeding device 9 is operated to shorten the vertical jack of the roller 5 with the vertical jack, and the sending operation is performed again. In this way, the same operation can be performed on the next pier, and the operation of sending out the bridge can be performed safely and economically continuously.
[0044]
In this construction method, the seismic isolation shoes can also be transported to a predetermined position by temporarily attaching them to the transport rails 8 or the horizontal beams of the bridge girder main body.
[0045]
Next, using the hand-rolling machine A of the present embodiment shown in FIGS. 1 and 2, a method for sending out a bridge, in which the bridge is erected between the piers without installing temporary facilities on the piers in advance, is shown in FIG. This will be described with reference to FIGS.
[0046]
FIG. 3 is a view showing the state of the tip of the hand roll immediately before reaching the pier in one embodiment of the bridge delivery method according to the present invention.
Tenobeki A is occurring bending downwardly projecting beam state of bridges beam body to Tenobe machine A and the subsequent, the tip Tenobe machine 2 so as to reach the pier P 1, upward by the hydraulic jack 4 You are tilted and given an elevation. In this state, the worker is arranged at the hydraulic operation point (operation panel) 11 through the walking path 7 to operate the hydraulic jack 4. However, in the case of remote operation from behind using a TV camera, it is not always necessary to arrange an operator.
[0047]
FIG. 4 is a view showing a state of a tip portion in which an elevation angle is given by a hydraulic jack to operate the tip hand roller on the pier upper surface.
The head of the roller 6 which is disposed at the bottom of the tip Tenobe machine 2 is brought into contact with the pier P 1 top, delivery Tenobe machine A by carriage propulsion system in yards and sends the bridges beam body forward.
With feed out so as not to interfere with the front of the next roller 6 and pier P 1, to provide a further elevation the tip Tenobe machine 2, thereby operating the hydraulic jack 4. At the time of this operation, the forward sending operation is stopped.
[0048]
FIG. 5 is a diagram showing a state of a leading end portion in which the elevation angle is further increased by the hydraulic jack and the next roller is operated to ride on the pier upper surface.
As seen in this figure, the interval of the rollers 6 are arranged narrower than the width of the piers P 1.
[0049]
FIG. 6 is a diagram showing a state of a tip portion where the next roller rides on the upper surface of the pier.
The state deflection due to beam body of Tenobe machine A and bridges in is almost eliminated, performs repeatedly transmitted if there is no abnormality of the obstacle and the roller 6 on the piers P 1.
[0050]
FIG. 7 is a diagram showing the state of the end portion where the roller with the vertical jack, which is the final roller, rides on the pier.
Vertical jack, so that based on the calculated value load, by performing the hydraulic operation in the hydraulic operation point 11, the expansion stroke (mainly extends) is on piers P 1.
The first time in this state, the elevating ladder 12 from the walking passage 7 workers can be lowered onto the piers P 1 using.
[0051]
FIG. 8 is a view showing the state of the leading end portion where the feeder has been carried from behind by the carrying rail.
The driving force required for transportation may be rope pulling by human power along the walking path 7. In order to prevent the personnel working over pier P 1 is crashed, around the pier P 1, it is desirable to provide a safety device M such as a net or a handrail.
[0052]
FIG. 9 is a diagram showing the state of the tip portion where the transporting device has been installed on the pier by the lifting equipment.
In this state, the vertical jack-equipped roller 5 still bears all the reaction force.
[0053]
FIG. 10 is a diagram showing the state of the distal end portion further forwarded by the feeder.
The vertical jack of the feeding device 9 is operated to open the roller 5 with the vertical jack, and the jack of the roller 5 with the vertical jack is shortened and sent forward by the feeding device 9.
[0054]
In this embodiment, the hand-rolling machine A includes the hand-rolling machine main body 1 having a plate structure and the tip hand-rolling machine 2 having a truss structure. However, the entire hand rolling machine A may have a truss structure. It is also possible to configure the entire hand-rolling machine A in a plate structure.
[0055]
In the present embodiment, the transport rails 8 are provided on the bottom side of the walking path 7, but the transport rails 8 are provided on both side surfaces of the bottom girder constituting the hand roll machine main body 1. Alternatively, it is also possible to use the girder material.
[0056]
Further, the rollers 5 and 6 with the vertical jack, the rollers 6, the feeding device 9, the lifting equipment 10, the elevating ladder 12, and the like are not limited to the shapes and the like shown in the drawings, and it goes without saying that they can be arbitrarily designed as needed. No.
[0057]
【The invention's effect】
According to the first aspect of the present invention, the tip hand-roller pivotally connected to the connection end of the hand-roller main body is sent out in a state of being tilted upward, and a predetermined interval is provided at the bottom of the tip hand-roller. The rollers arranged in this manner are brought into contact with the top surface of the pier sequentially from the top roller, and after the roller with the vertical jack provided at the lower part of the tip of the hand roll machine body is brought into contact with the top surface of the pier, The hand roll is mounted on the pier with the roller with the vertical jack, the feeder is installed on the pier in that state, the hand roll is mounted on the feeder, and the vertical jack of the roller with the vertical jack is shortened. Since the bridge was sent out again using a feeder, the feeder, cradle, equipment for pulling up the tip of the hand-rolling machine, and other equipment for lifting materials and equipment were placed above the pier. It is not necessary to install them above the piers in advance, And construction road sends bridges without providing can be performed, with can be shortened piers equipment installation process, it is possible to reduce the economic burden.
[0058]
According to a second aspect of the present invention, in the method for delivering a bridge according to the first aspect, the hand-rolling machine is mounted on the main body of the hand-rolling machine while the hand-rolling machine is mounted on the pier with a roller with a vertical jack. The feeder is transported by the rail for use, and the feeder is installed on the pier by the lifting equipment provided at the tip of the main unit of the hand-rolling machine. The equipment is transported smoothly and can be installed on the pier in a short time.
[0059]
Further, the invention of claim 3 connects the hand-rolling machine main body and the leading hand-rolling machine via a hinge portion provided at a lower end projecting portion of each connection end, and a hydraulic jack provided at an upper end portion of the connection end. , The tip handroller is pivotably supported to tilt upward, a roller with a vertical jack is provided below the tip of the handroller main body, and a predetermined jack is provided at the bottom of the tip handroller. 2. The bridge according to claim 1, wherein a plurality of rollers are arranged at intervals to form a hand-rolling machine, so that the hand-rolling machine can be smoothly mounted on a pier to send out the bridge. Can be provided.
[0060]
According to a fourth aspect of the present invention, in the hand-rolling machine according to the third aspect, a transport rail for transporting the feeding device is provided on the main body of the hand-rolling machine, and the feeding device is provided at a tip end of the main body of the hand-rolling machine. Since the lifting equipment for installing on the pier is provided, in the hand-rolling machine according to claim 3, the feeder can be smoothly transported, and can be configured to be installed on the pier in a short time. .
[0061]
According to a fifth aspect of the present invention, in the hand-rolling machine according to the third or fourth aspect, a walking path for a worker to pass is provided in the hand-rolling machine main body, and a vertical portion is provided at a tip end of the hand-rolling machine main body. Since the hydraulic operation part for operating the roller with the jack and the hydraulic jack is arranged, the worker can smoothly operate the roller with the vertical jack and the hydraulic jack at the hydraulic operation part in the hand-rolling machine according to claim 3 or 4. Operability can be improved.
[0062]
According to a sixth aspect of the present invention, in the hand-rolling machine according to the fifth aspect, an elevating ladder for lowering a worker from a walking path onto a pier is provided at a tip end of the main body of the hand-rolling machine. In the hand-rolling machine described in (1), the worker can easily move up and down on the pier, and the bridge delivery method can be performed safely and smoothly.
[0063]
The present invention has the above-mentioned effects, and can provide a practically effective bridge delivery method and a hand rolling machine for erection of a bridge between piers.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a hand-rolling machine used in a bridge delivery method according to the present invention.
FIG. 2 is a plan view of the hand-rolling machine shown in FIG.
FIG. 3 is a view showing a situation of a tip portion of a hand-rolling machine immediately before reaching a pier in an embodiment of a bridge delivery method according to the present invention.
FIG. 4 is a diagram showing a state of a tip portion in which an elevation angle is given to a large extent by a hydraulic jack and an operation is performed so that the tip hand roll machine is mounted on the pier upper surface.
FIG. 5 is a diagram showing a state of a tip end portion in which an elevation angle is further increased by a hydraulic jack, and then a roller is operated to ride on an upper surface of a pier.
FIG. 6 is a diagram showing a state of a leading end portion on which the next roller rides on the pier upper surface.
FIG. 7 is a view showing a state where a roller with a vertical jack as a final roller rides on a pier;
FIG. 8 is a view showing a state of a front end portion where the feed device is carried from behind by a carrying rail.
FIG. 9 is a view showing a situation of a leading end portion where the transported feed device is installed on a pier by a lifting facility.
FIG. 10 is a diagram showing a state of a tip portion further fed forward by the feed device.
FIG. 11 is a side view showing a state of a tip portion where a bridge is delivered between piers by using a conventional hand-rolling machine to send out a bridge by a conventional construction method.
[Explanation of symbols]
A Hand roll machines P 0 , P 1 Pier 1 Hand roll machine body 2 Tip hand roll machine 3 Hinge 4 Hydraulic jack 5 Roller with vertical jack 6 Roller 7 Walking path 8 Transport rail 9 Feeder 10 Lifting equipment 11 Hydraulic operation Point 12 Elevating ladder M Safety equipment 20 such as nets and handrails 20 Bridge 21 Hand roll 22 Connecting structure 23 Sending yard 24 Feeding device 25 Receiving stand 26 Bogie type propulsion device

Claims (6)

手延機本体の接続端に枢支して接続された先端手延機を、上向に傾倒させた状態で送出し、先端手延機の底部に所定の間隔をおいて配設された複数のローラを、先頭のローラから順次橋脚上面に接触させて行き、手延機本体の先端部の下部に設けた鉛直ジャッキ付ローラを橋脚上面に接触させた後、その鉛直ジャッキ付ローラで手延機を橋脚上に載架せしめ、その状態で送り装置を橋脚上に設置して手延機を送り装置に載架し、鉛直ジャッキ付ローラの鉛直ジャッキを縮短させて送り装置により再度送出しをするようにしたことを特徴とする橋梁の送出し工法。The tip hand-roller pivotally connected to the connection end of the hand-roller main body is sent out in a state of being tilted upward, and a plurality of tip hand-rollers arranged at a predetermined interval on the bottom of the tip hand-roller. Roller from the top roller in order from the top roller, contact the roller with the vertical jack provided at the lower part of the tip of the hand-rolling machine body to the upper surface of the pier, and then roll it with the roller with the vertical jack. The machine is mounted on the pier, and in that state, the feeder is installed on the pier, the hand-rolling machine is mounted on the feeder, the vertical jack of the roller with the vertical jack is shortened, and the feeder sends it out again. A bridge delivery method characterized by the following. 鉛直ジャッキ付ローラで手延機を橋脚上に載架せしめた状態で、手延機本体に配設した運搬用レールにより送り装置を運搬し、手延機本体の先端部に設けた揚重設備により送り装置を橋脚上に設置するようにしたことを特徴とする請求項1に記載の橋梁の送出し工法。A lifting device installed at the end of the main unit of the hand-rolling machine, with the hand-rolling machine mounted on the bridge pier using rollers with vertical jacks, and the feeder transported by the transport rails provided on the main unit of the hand-rolling machine. The method according to claim 1, wherein the feeder is installed on the pier by means of the following. 手延機本体と先端手延機を、それぞれの接続端の下端突出部に設けたヒンジ部を介して接続すると共に、接続端の上端部に設けた油圧ジャッキを介して接続して先端手延機を上向に傾倒可能に枢支し、手延機本体の先端部の下部に鉛直ジャッキ付ローラを配設すると共に、先端手延機の底部に所定の間隔をおいてローラを複数個配設したことを特徴とする手延機。The hand-roller main body and the tip hand-roller are connected via hinges provided at the lower end protrusions of the respective connection ends, and are connected via hydraulic jacks provided at the upper end of the connection ends. The machine is pivoted so that it can be tilted upward, and a roller with a vertical jack is provided below the tip of the hand-rolling machine main body, and a plurality of rollers are provided at the bottom of the hand-rolling machine at predetermined intervals. A hand-rolling machine characterized by being installed. 手延機本体に送り装置を運搬する運搬用レールを配設すると共に、手延機本体の先端部に、送り装置を橋脚上に設置するための揚重設備を設けたことを特徴とする請求項3に記載の手延機。A transport rail for transporting the feeder is provided on the main unit of the hand-rolling machine, and a lifting device for installing the feeder on the pier is provided at a tip of the main body of the hand-rolling machine. Item 6. A hand roll according to Item 3. 手延機本体に作業員が通行するための歩行路を設けると共に、手延機本体の先端部に、鉛直ジャッキ付ローラと油圧ジャッキを作動させるための油圧操作箇所を配置したことを特徴とする請求項3又は4に記載の手延機。In addition to providing a walkway for workers to pass through the main unit of the hand-rolling machine, a hydraulic jack for operating a roller with a vertical jack and a hydraulic jack is arranged at the tip of the main body of the hand-rolling machine. The hand rolling machine according to claim 3 or 4. 手延機本体の先端部に、作業員を歩行路より橋脚上に降下させる昇降梯子を設けたことを特徴とする請求項5に記載の手延機。The hand rolling machine according to claim 5, wherein a lifting ladder for lowering a worker from a walking path onto a pier is provided at a tip end of the hand rolling machine main body.
JP2002271104A 2002-09-18 2002-09-18 Launching method and launching machine for bridge Withdrawn JP2004107972A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464026C (en) * 2007-12-19 2009-02-25 中铁十八局集团有限公司 Girder-exchange construction method for existing railway bridge by successively incremeantal launching framework process
CN102943443A (en) * 2012-11-21 2013-02-27 山东省路桥集团有限公司 Movable mould frame bridge fabrication machine C type beam system
CN102953339A (en) * 2012-11-21 2013-03-06 山东省路桥集团有限公司 Front support beam lifting system
CN104947599A (en) * 2015-04-27 2015-09-30 中交路桥华南工程有限公司 Method for incremental launching construction of bridge
CN106522113A (en) * 2016-11-19 2017-03-22 中交路桥建设有限公司 Integrally continuous backing method for moving formwork on girder face
CN107815975A (en) * 2017-11-28 2018-03-20 江西乔田重工有限公司 Incremental launching construction by multipoint jacking device and construction method of the multi-joint multi-span steel beam based on independent non-rigid bridge pier
JP2018178572A (en) * 2017-04-14 2018-11-15 Jfeエンジニアリング株式会社 Launching method
JP2019044453A (en) * 2017-08-31 2019-03-22 西日本旅客鉄道株式会社 Replacement method and erection machine
CN113513630A (en) * 2021-04-30 2021-10-19 四川石油天然气建设工程有限责任公司 Pipeline crossing pushing system for narrow deep valley or wide river and process thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464026C (en) * 2007-12-19 2009-02-25 中铁十八局集团有限公司 Girder-exchange construction method for existing railway bridge by successively incremeantal launching framework process
CN102943443A (en) * 2012-11-21 2013-02-27 山东省路桥集团有限公司 Movable mould frame bridge fabrication machine C type beam system
CN102953339A (en) * 2012-11-21 2013-03-06 山东省路桥集团有限公司 Front support beam lifting system
CN104947599A (en) * 2015-04-27 2015-09-30 中交路桥华南工程有限公司 Method for incremental launching construction of bridge
CN106522113A (en) * 2016-11-19 2017-03-22 中交路桥建设有限公司 Integrally continuous backing method for moving formwork on girder face
CN106522113B (en) * 2016-11-19 2018-01-09 中交路桥建设有限公司 The overall continuous rear annealing method in mobile formwork beam face
JP2018178572A (en) * 2017-04-14 2018-11-15 Jfeエンジニアリング株式会社 Launching method
JP2019044453A (en) * 2017-08-31 2019-03-22 西日本旅客鉄道株式会社 Replacement method and erection machine
JP6991017B2 (en) 2017-08-31 2022-01-12 西日本旅客鉄道株式会社 Replacement method and erection machine
CN107815975A (en) * 2017-11-28 2018-03-20 江西乔田重工有限公司 Incremental launching construction by multipoint jacking device and construction method of the multi-joint multi-span steel beam based on independent non-rigid bridge pier
CN107815975B (en) * 2017-11-28 2023-06-09 江西乔田重工有限公司 Multi-point synchronous pushing device based on independent non-rigid pier for multi-connected multi-span steel girder and construction method
CN113513630A (en) * 2021-04-30 2021-10-19 四川石油天然气建设工程有限责任公司 Pipeline crossing pushing system for narrow deep valley or wide river and process thereof

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