JP2009024465A - Delivery method - Google Patents

Delivery method Download PDF

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JP2009024465A
JP2009024465A JP2007191624A JP2007191624A JP2009024465A JP 2009024465 A JP2009024465 A JP 2009024465A JP 2007191624 A JP2007191624 A JP 2007191624A JP 2007191624 A JP2007191624 A JP 2007191624A JP 2009024465 A JP2009024465 A JP 2009024465A
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delivery
girder
cart
temporary
erection
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JP4474445B2 (en
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Hideki Akasofu
秀樹 赤祖父
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Nippon Sharyo Ltd
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Nippon Sharyo Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a delivery method simplifying a displacement on a front delivery truck. <P>SOLUTION: The delivery method for erecting an erection girder 122 by placing and supporting the erection girder 122 on a plurality of delivery trucks 1A, 1B arranged fore and aft, and delivering the erection girder 122 from one bridge pier to the other bridge pier by the movement of the delivery trucks 1A, 1B along a travel rail 130, is carried out by repeating a step of advancing the erection girder 122 by the travel of the delivery trucks 1A, 1B and a displacement step of transferring the erection girder 122 from the front delivery truck 1A to a temporary pedestal 52 and retreating the front delivery truck 1A. In the displacement step, the vertical jack 4 of the front delivery truck 1A is contracted to lower the erection girder 122, and the erection girder 122 is transferred onto the temporary pedestal 52 only by the lowering operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、送出し台車の搭載した橋桁を河川や線路上を横断して架け渡す送出し工法であって、特に、前方の送出し台車に関する位置替えを簡単に行うようにした送出し工法に関する。   The present invention relates to a delivery method that bridges a bridge girder loaded with a delivery truck across a river or a track, and particularly relates to a delivery method that can easily change the position of a forward delivery truck. .

従来、橋梁の架設工事においては、架設予定の橋桁（以下、「架設桁」という）の下に鉄道や道路が通っていたり、河川や湖沼を跨ぐような場合など、桁下空間を利用できない場合の施工方法として送出し工法が採用されている。図６は、線路を横切る橋梁架設の現場で行われる架設桁の送出し工法について示した図である。橋梁架設では、図示するように橋脚１１１〜１１３が建てられ、そこにクレーンを使用して架設桁１２１が掛け渡される。しかし、線路をまたぐ橋脚１１４，１１５区間では、桁下空間が利用できないため、クレーンの設置ができないことから送出し工法が行われる。   Conventionally, when installing bridges, under the bridge girder (hereinafter referred to as “erection girder”), such as when railroads or roads pass over rivers or lakes, the under-girder space cannot be used. The delivery method is adopted as the construction method. FIG. 6 is a diagram illustrating a construction method for sending a construction girder performed at a site of bridge construction across a railway. In the bridge erection, piers 111 to 113 are built as shown in the figure, and an erection girder 121 is spanned by using a crane. However, in the section of bridge piers 114 and 115 crossing the track, the space under the girder cannot be used, so that the crane can not be installed, so the feeding method is performed.

この架設現場では仮設備１１０が組まれ、水平な走行軌条１３０を敷設し、その上を走行させ架設桁１２２の送出しが行われる。そこで、先端に手延べ機１４０が連結された架設桁１２２は、その前後位置に配置された送出し台車１００に搭載され、その送出し台車１００の駆動によって矢印で示す方向へ送り出される。   In this erection site, temporary equipment 110 is assembled, a horizontal traveling rail 130 is laid, and the erection girder 122 is sent out by traveling on it. Therefore, the erection beam 122 having the hand-roller 140 connected to the tip is mounted on the delivery cart 100 disposed at the front and rear positions thereof, and is sent out in the direction indicated by the arrow by driving the delivery cart 100.

次に図７は、従来の送出し台車を示した概念図である。仮設備１１０には例えば３本の走行軌条１３０が敷設され、送出し台車１００は、その上を走行するため前後に２つの車輪をもった台車本体１０１を有している。そして、下フレーム１０３を介して横並びの各台車本体１０１が連結される。下フレーム１０３上には鉛直ジャッキ１０２が設けられ、更に上フレーム１０４を介して架設桁１２２が搭載されている。従って、架設桁１２２は、こうして前後３台ずつの送出し台車１００に搭載され、送出し台車１００と走行軌条１３０に連結された水平ジャッキ１０８の伸長動作によって前方へ送り出される。   Next, FIG. 7 is a conceptual diagram showing a conventional delivery cart. For example, three travel rails 130 are laid on the temporary facility 110, and the delivery cart 100 has a cart body 101 having two wheels on the front and rear in order to run on it. Then, the cart bodies 101 arranged side by side are connected via the lower frame 103. A vertical jack 102 is provided on the lower frame 103, and an installation girder 122 is further mounted via the upper frame 104. Accordingly, the installation girder 122 is thus mounted on the three delivery carts 100 at the front and rear, and is sent forward by the extension operation of the horizontal jack 108 connected to the delivery cart 100 and the running rail 130.

前後それぞれにおいて３箇所で支持する各送出し台車１００では、架設桁１２２の荷重分担をなるべく均等にするように、鉛直ジャッキ１０２のストロークによって調整が行われている。しかし、走行軌条１３０間に生じる数ミリ程度の高さの変化によって荷重に大きな偏りが生じてしまい、特定の送出し台車１００に架設桁１２２の大きな荷重が集中して作用することになって仮設備１１０の強度が問題になる。そこで、鉛直ジャッキ１０２に不図示の圧力センサを設けて荷重反力を測定し、反力に偏りが生じた場合には鉛直ジャッキ１０２のストロークを変化させて反力調整を行うことで、送出し台車１００同士の荷重負担が均等に分散するようにしている。
特開２００３−２７８１１４号公報 In each delivery cart 100 supported at three positions in the front and rear, adjustment is performed by the stroke of the vertical jack 102 so that the load sharing of the installation girder 122 is made as even as possible. However, a large deviation in the load occurs due to a change in height of several millimeters generated between the running rails 130, and the large load of the installation girder 122 acts on the specific delivery cart 100 in a concentrated manner. The strength of the facility 110 becomes a problem. Therefore, a pressure sensor (not shown) is provided on the vertical jack 102 to measure the load reaction force, and when the reaction force is biased, the reaction force is adjusted by changing the stroke of the vertical jack 102 to send it out. The load burden between the trolleys 100 is distributed evenly.
JP 2003-278114 A

ところで、送出し工法では、前方の送出し台車１００を途中で何回も後方に移動させる位置替え作業が行われるが、その際、前方の送出し台車１００に代えて仮受け台で架設桁１２２を支える必要がある。しかし、従来の送出し工法では、送出し台車１００が高い位置で架設桁１２２を支えているため、図８に示すように、位置替え作業の際には仮受けジャッキ１５０を用いて架設桁１２２を上げ、更に、その落下防止のため仮受台にはサンドル１６０を積み重ねなければならなかった。従って、従来の送出し工法では、仮受けジャッキ１５０の設置や撤去に手間がかかる他、送出し工法を実行している際にも、仮受けジャッキ１５０やサンドル１６０による架設桁１２２の支持操作が必要になるなど、作業が非常に煩雑であった。   By the way, in the delivery method, a position change operation is performed in which the forward delivery cart 100 is moved backward several times along the way. At that time, the temporary girder 122 is used instead of the forward delivery cart 100 to install the construction beam 122. It is necessary to support. However, in the conventional delivery method, the delivery carriage 100 supports the installation beam 122 at a high position. Therefore, as shown in FIG. Furthermore, in order to prevent the fall, the sandals 160 had to be stacked on the temporary table. Therefore, in the conventional delivery method, it takes time to install and remove the temporary receiving jack 150, and also when the delivery method is being executed, the support operation of the construction beam 122 by the temporary receiving jack 150 and the sandal 160 is not performed. The work was very complicated, such as being necessary.

そこで、本発明は、かかる課題を解決すべく、前方の送出し台車に関する位置替えを簡単に行うようにした送出し工法を提供することを目的とする。   In view of the above, an object of the present invention is to provide a delivery method that can easily change the position of a forward delivery carriage.

本発明に係る送出し工法は、前後方向に配置された複数の送出し台車に架設桁を載せて支持し、その送出し台車の走行軌条に沿った移動により、架設桁を一方の橋脚から他方の橋脚へ送り出すことによって架設するものであり、送出し台車の走行により架設桁を前進させる工程と、架設桁を前方の送出し台車から仮受台に載せ替えて当該前方の送出し台車を後退させる位置替え工程とを繰り返すものであって、その位置替え工程において、前方の送出し台車の鉛直ジャッキを収縮させて架設桁を下降させ、その下降動作のみによって前記仮受台に架設桁を載せ替えるようにしたものであることを特徴とする。   In the delivery method according to the present invention, an installation girder is placed on and supported by a plurality of delivery carriages arranged in the front-rear direction, and the installation girder is moved from one pier to the other by movement along the running rail of the delivery carriage. It is constructed by sending it out to the pier of the pier. The process of advancing the erection girder by running of the delivery carriage, and the erection girder from the front delivery trolley to the temporary receiving pedestal are moved backward. In the position changing step, the vertical jack of the delivery cart in front is contracted to lower the installation girder, and the installation girder is placed on the temporary receiving table only by the lowering operation. It is characterized by being replaced.

よって、本発明によれば、前方の送出し台車を後退させる位置替え工程において、その送出し台車の鉛直ジャッキを収縮させて架設桁を下降させ、その下降動作のみによって前記仮受台に架設桁を載せ替えるようにしたので、従来の送出し工法のような仮受けジャッキなどの設置や撤去の手間の他、送出しの際の煩雑な作業が不要になる。   Therefore, according to the present invention, in the repositioning step of retracting the front delivery carriage, the vertical jack of the delivery carriage is contracted to lower the installation girder, and the installation girder is only installed on the temporary support base by the lowering operation. Since there is no need to install and remove a temporary receiving jack or the like as in the conventional delivery method, complicated work at the time of delivery becomes unnecessary.

次に、本発明に係る送出し工法の一実施形態について図面を参照しながら以下に説明する。図１は、本実施形態の送出し工法に使用する送出し台車を示した外観斜視図である。
本実施形態の送出し台車１は、従来例で示したものと同様に、例えば仮設備１１０の走行軌条１３０上を走行するように構成され、箱形の台車本体２内に、走行軌条１３０を走行する車輪３が前後して２つ設けられている。 Next, an embodiment of a delivery method according to the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view showing a delivery cart used in the delivery method of the present embodiment.
The delivery cart 1 of the present embodiment is configured to run on the running rail 130 of the temporary equipment 110, for example, as in the conventional example, and the running rail 130 is provided in the box-shaped cart body 2. Two traveling wheels 3 are provided back and forth.

台車本体２は、更にその前後する車輪３，３の間に鉛直ジャッキ４が設けられ、特に本実施形態では、その鉛直ジャッキ４が台車本体２内に組み込まれて一体に構成されている。台車本体２は、図示するように、前後の車輪３，３を覆うように車輪カバー部１１，１１が形成され、その間には段差を付けて凹ませたジャッキ装着部１２が形成されている。前後の車輪３，３は、走行軌条１３０を走行するものであって、一直線上に配置されて車輪カバー部１１に軸支されている。そして、車輪３は、走行軌条１３０から左右にずれないように両側にエッジが立てられた形状をしている。   The bogie main body 2 is further provided with a vertical jack 4 between the front and rear wheels 3, 3. In particular, in the present embodiment, the vertical jack 4 is integrated into the bogie main body 2 and is integrally formed. As shown in the figure, the cart body 2 is formed with wheel cover portions 11 and 11 so as to cover the front and rear wheels 3 and 3, and a jack mounting portion 12 which is recessed with a step is formed therebetween. The front and rear wheels 3, 3 travel on the travel rail 130, are arranged in a straight line, and are pivotally supported by the wheel cover portion 11. The wheel 3 has a shape in which edges are raised on both sides so as not to be displaced from the traveling rail 130 to the left and right.

この送出し台車１は自走式であって、詳しく図示しないが、一方の車輪３が、例えばギアードモータに連結された駆動輪として構成されている。従って、電源部からそのギヤードモータに電力が供給されると、モータの回転が減速機構を介して減速し、高トルクの回転出力となって出力軸に伝えられる。そして、その出力軸に連結された駆動車輪３に対して回転が伝えられ、送出し台車１が走行軌条１３０上を走行することができるようになっている。   The delivery carriage 1 is self-propelled, and although not shown in detail, one wheel 3 is configured as a drive wheel connected to, for example, a geared motor. Therefore, when electric power is supplied from the power supply unit to the geared motor, the rotation of the motor is decelerated via the reduction mechanism, and is transmitted to the output shaft as a high torque rotation output. And rotation is transmitted with respect to the drive wheel 3 connected with the output shaft, and the sending trolley | bogie 1 can drive | work on the running rail 130 now.

台車本体２のジャッキ装着部１２には、左右の幅方向両端に支持ブロック１３，１３が固定され、その間に鉛直ジャッキ４が配置されて取り付けられている。鉛直ジャッキ４は、例えば１００ｔ程度の支持が可能な油圧シリンダであり、そのピストンロッド４ａが上方に突き出して配置されている。また、鉛直ジャッキ４は、その中心軸に直交するようにシリンダチューブ４ｂにロッド４ｃが突設され、そのロッド４ｃを軸にして支持ブロック１３，１３に対して取り付けられている。従って、鉛直ジャッキ４は、台車本体２に対して揺動可能であって、例えば走行軌条１３０の多少の傾斜に対してもその上に搭載する架設桁１２２を水平に保った送出しができるようになっている。   Support blocks 13 and 13 are fixed to the jack mounting portion 12 of the cart body 2 at both ends in the left and right width direction, and the vertical jack 4 is disposed and attached between the support blocks 13 and 13. The vertical jack 4 is a hydraulic cylinder capable of supporting, for example, about 100 t, and its piston rod 4a protrudes upward. The vertical jack 4 has a rod 4c protruding from the cylinder tube 4b so as to be orthogonal to the central axis thereof, and is attached to the support blocks 13 and 13 with the rod 4c as an axis. Therefore, the vertical jack 4 can swing with respect to the carriage main body 2, and can send out the construction girder 122 mounted on the horizontal rail 122 horizontally even when the traveling rail 130 is slightly inclined, for example. It has become.

鉛直ジャッキ４には、ピストンロッド４ａの先端に取付プレート１５が固定されている。図１では、鉛直ジャッキ４が伸長した状態を示しているが、収縮した状態では、その取付プレート１５が支持ブロック１３，１３の直上に位置し、上面が台車本体２の車輪カバー部１１，１１の上面とほぼ同じ高さになるように構成されている。従って、本実施形態の送出し台車１は、収縮した状態の鉛直ジャッキ４が台車本体２から突き出ることなく、台車本体２内に収まるように構成されている。また、その鉛直ジャッキ４には不図示のストロークセンサが内蔵され、その伸縮状態や、支持する架設桁１２２の高さが確認できるようになっている。   A mounting plate 15 is fixed to the vertical jack 4 at the tip of the piston rod 4a. FIG. 1 shows the state in which the vertical jack 4 is extended, but in the contracted state, the mounting plate 15 is located immediately above the support blocks 13, 13 and the upper surface is the wheel cover portion 11, 11 of the carriage body 2. It is comprised so that it may become substantially the same height as the upper surface of. Therefore, the delivery cart 1 of the present embodiment is configured such that the contracted vertical jack 4 does not protrude from the cart body 2 and fits in the cart body 2. The vertical jack 4 has a built-in stroke sensor (not shown) so that the stretched state and the height of the supporting girder 122 to be supported can be confirmed.

次に、こうした送出し台車１を使用した架設桁の送出し工法について説明する。図２乃至図４は、送出し工法の各段階の架設状態を示した図である。特に、図２は最初の送出しの状態を示し、図３は送出し台車の位置替えによる送出しの状態を示し、図４は送出し完了時の状態を示している。
本実施形態の送出し工法では、図６に示す場合と同様に、仮設備１１０が組まれ、水平な走行軌条１３０が敷設された場合であって、その上を送出し台車１によって架設桁１２２を送り出す場合について説明する。 Next, a construction method for erection girders using such a delivery cart 1 will be described. FIGS. 2 to 4 are views showing the erection state at each stage of the delivery method. In particular, FIG. 2 shows an initial delivery state, FIG. 3 shows a delivery state by changing the position of the delivery carriage, and FIG. 4 shows a state when delivery is completed.
In the delivery method of the present embodiment, as in the case shown in FIG. 6, the temporary equipment 110 is assembled and the horizontal running rail 130 is laid, and the construction beam 122 is constructed by the delivery carriage 1 on the temporary traveling rail 130. The case of sending out will be described.

架設桁１２２は、その先端に手延べ機１４０が連結され、前後の位置で送出し台車１（１Ａ，１Ｂ）によって支えられ矢印で示す方向へと送り出される。ここで、前後の送出し台車１を区別して説明する場合には、前方の送出し台車１を１Ａとし、後方の送出し台車１を１Ｂとして表す。   The construction beam 122 is connected to the leading end of the handrail 140, and is supported by the delivery cart 1 (1A, 1B) at the front and rear positions and sent out in the direction indicated by the arrow. Here, when the front and rear delivery carts 1 are described separately, the front delivery cart 1 is denoted as 1A, and the rear delivery cart 1 is denoted as 1B.

架設桁１２２は、前後の２箇所が送出し台車１Ａ，１Ｂによって支えるが、各箇所においては、幅方向に数列設けられた走行軌条１３０の数に応じて送出し台車１が設置されている。例えば、仮設備に４本の走行軌条１３０が敷設されていれば、前後２箇所においてそれぞれ走行軌条１３０毎に１台ずつ計４台の送出し台車１が配置される。横並びした４台の送出し台車１Ａ，１Ｂは、各取付プレート１５上に連結フレームが固定され、一体となって走行するよう配置される。そして、送出し台車１の上には、連結フレームを介して架設桁１２２が搭載される。   The erection girder 122 is supported at two places on the front and rear sides by sending carts 1A and 1B. At each location, the sending cart 1 is installed according to the number of traveling rails 130 provided in several rows in the width direction. For example, if four traveling rails 130 are laid in the temporary facility, a total of four delivery carts 1 are arranged for each traveling rail 130 at two locations in the front and rear. The four delivery carts 1A and 1B arranged side by side are arranged so that the connecting frames are fixed on the respective mounting plates 15 and run together. And the installation girder 122 is mounted on the delivery cart 1 via the connection frame.

架設桁１２２を搭載した送出し台車１は、ギヤードモータがコントロールされ、駆動輪３が回転することにより走行軌条１３０に沿って走行する。これにより、搭載された架設桁１２２が前方へと送り出される。その際、送出し工法では、各送出し台車１にかかる荷重のバランスが調整される。各送出し台車１に対する荷重負担に大きな偏りが生じると、その送出し台車１を介して仮設備１１０へ荷重が集中してしまうからである。そこで、送出し台車１には、その鉛直ジャッキ４に不図示の圧力センサが設けられ、その検出値を基に荷重反力に偏りが確認できた場合には、鉛直ジャッキ４のストロークを変化させて反力調整を行うことで荷重が均等に分散するようにしている。   The delivery cart 1 on which the installation girder 122 is mounted runs along the running rail 130 as the geared motor is controlled and the drive wheels 3 rotate. As a result, the installed girder 122 is sent forward. At that time, in the delivery method, the balance of the load applied to each delivery carriage 1 is adjusted. This is because when the load burden on each delivery cart 1 is greatly biased, the load is concentrated on the temporary equipment 110 via the delivery cart 1. Therefore, the delivery cart 1 is provided with a pressure sensor (not shown) on the vertical jack 4, and when it is confirmed that the load reaction force is biased based on the detected value, the stroke of the vertical jack 4 is changed. By adjusting the reaction force, the load is distributed evenly.

架設桁１２２が送り出されている際には、圧力センサからの検出結果が監視室の監視モニタに表示される。監視モニタの前では、管理者が各送出し台車１にかかる荷重の変化を確認し、特定の送出し台車１の荷重が大きくなったような場合には、仮設備１１０上で送出しを操作しているオペレータに無線機で指示を出す。オペレータは、その指示に従い送出し装置１の鉛直ジャッキ４へ供給する圧力油をコントロールしてストロークを調整する。これにより、横並びの送出し台車１Ａ又は１Ｂにおいて、各送出し台車１同士が負担する荷重がほぼ均等になるような調整が行われる。また、それでも圧力センサからの値が一定の値を超えてしまうような状況では、送出し装置１の走行を一旦停止させる。そして、停止原因となった鉛直ジャッキ４は監視モニタに反力表示されているため、直ちに無線で仮設備上にいるオペレータに連絡がいき、原因の究明がなされ、解決後に再び送出しが再開される。   When the erection beam 122 is being sent out, the detection result from the pressure sensor is displayed on the monitoring monitor in the monitoring room. Before the monitoring monitor, the administrator confirms a change in the load applied to each delivery cart 1 and operates the delivery on the temporary facility 110 when the load on a specific delivery cart 1 becomes large. The operator is instructed by radio. The operator adjusts the stroke by controlling the pressure oil supplied to the vertical jack 4 of the feeding device 1 according to the instruction. As a result, in the side-by-side delivery carts 1A or 1B, adjustment is performed so that the loads borne by the delivery carts 1 are substantially equal. Moreover, in a situation where the value from the pressure sensor still exceeds a certain value, the travel of the delivery device 1 is temporarily stopped. Since the vertical jack 4 that caused the stop is displayed as a reaction force on the monitoring monitor, the operator on the temporary equipment is immediately contacted by radio, the cause is investigated, and the delivery is resumed after the solution. The

架設桁の送出し工法では、図２などに示すように、不図示の線路などを挟んで送出しの手前側（図面右側）と奥側（図面左側）とに仮受台５２，５３が設けられている。そして、奥側の仮受台５３には、ローラを備えた仮受装置５５が設置され、送り出される手延べ機１４０を受けるようにしている。
送出し工法では、先ず図２（ａ）から図２（ｂ）に示すように、一度の走行によって手延べ機１４０の先端が仮受台５３の仮受装置５５に達する位置まで前進した送出しが行われる。前方の送出し台車１Ａは、仮受台５２の直前に位置し、それ以上の移動ができなくなる。前方の送出し台車１Ａは、こうした一度の走行によって手延べ機１４０の仮受装置５５に達するように、手延べ機１４０先端から所定の距離をとって配置されている。 As shown in FIG. 2 and the like, the temporary girder 52, 53 is provided on the front side (right side of the drawing) and the back side (left side of the drawing) of the construction girder sending method, as shown in FIG. It has been. Then, a provisional receiving device 55 having a roller is installed in the provisional reception stand 53 on the back side so as to receive the hand-roller 140 to be sent out.
In the delivery method, first, as shown in FIGS. 2 (a) to 2 (b), the delivery is advanced to the position where the tip of the hand-roller 140 reaches the provisional receiving device 55 of the provisional stand 53 by one run. Is done. The forward delivery cart 1A is located immediately before the provisional stand 52, and cannot move further. The forward delivery cart 1A is arranged at a predetermined distance from the tip of the spreader 140 so as to reach the temporary receiving device 55 of the spreader 140 by such a single run.

続いて、前方の送出し台車１Ａの位置替えが行われる。そのためには、前方の送出し台車１Ａの鉛直ジャッキ４が縮められ、架設桁１２２や手延べ機１４０が降ろされて仮受台５２に載せ替えられる。こうしてフリーになった前方の送出し台車１Ａは、図３（ａ）に示すように後方に移動する。そして、再び前方の送出し台車１Ａの鉛直ジャッキ４が伸ばされ、仮受台５２で受けていた架設桁１２２などを前後の送出し台車１Ａ，１Ｂで支える。その後、送出しを再開し、図３（ｂ）に示すように、前方の送出し台車１Ａが仮受台５２に達する度に、その送出し台車１Ａの位置替えが繰り返され、図４に示すように、架設桁１２２が仮受台５３に達するまで行われる。   Subsequently, the position of the front delivery cart 1A is changed. For this purpose, the vertical jack 4 of the front delivery cart 1A is shrunk, and the erection girder 122 and the handrailing machine 140 are lowered and placed on the temporary support 52. The forward delivery carriage 1A that has become free as described above moves backward as shown in FIG. Then, the vertical jack 4 of the front delivery cart 1A is extended again, and the installation girders 122 and the like received by the temporary support base 52 are supported by the front and rear delivery carts 1A and 1B. Thereafter, the delivery is resumed, and as shown in FIG. 3B, every time the forward delivery carriage 1A reaches the temporary receiving base 52, the position change of the delivery carriage 1A is repeated, as shown in FIG. As described above, the process is performed until the erection beam 122 reaches the temporary support 53.

ところで、本実施形態の送出し工法では、前方の送出し台車１Ａについて位置替えを行う際、図８に示す従来例のように、仮受けジャッキ１５０やサンドル１６０を設けて架設桁１２２を上昇させる必要がなくなった。ここで、図５は、送出し台車１Ａの位置替えを行う状態を示した図である。送出し状態では、図５（ａ）に示すように、送出し台車１Ａの鉛直ジャッキ４が延びて架設桁１２２が持ち上げられている。
一方、前方の送出し台車１Ａについて位置替えを行う場合には、図５（ｂ）に示すように、単に鉛直ジャッキ４を収縮させるだけで、降ろした架設桁１２２を仮受台５２へと載せ替える。従って、送出し台車１Ａの鉛直ジャッキ４を収縮させた後、そのままの状態で後退し、再び位置替えした位置で鉛直ジャッキ４を伸ばすことにより、架設桁１２２を仮受台５２から受け取って送出しを再開する。 By the way, in the delivery method according to the present embodiment, when the position of the forward delivery carriage 1A is changed, provisional jacks 150 and sandals 160 are provided to raise the construction beam 122 as in the conventional example shown in FIG. No longer needed. Here, FIG. 5 is a diagram showing a state in which the position of the delivery carriage 1A is changed. In the delivery state, as shown in FIG. 5 (a), the vertical jack 4 of the delivery carriage 1A is extended and the installation girder 122 is lifted.
On the other hand, when the position of the forward delivery cart 1A is changed, as shown in FIG. 5B, the vertical jack 4 is simply contracted, and the lowered installation girder 122 is placed on the temporary support base 52. Change. Accordingly, after the vertical jack 4 of the delivery carriage 1A is contracted, it is retracted as it is, and the vertical jack 4 is extended again at the repositioned position, so that the installation girder 122 is received from the temporary support base 52 and sent out. To resume.

よって、本実施形態の送出し工法によれば、鉛直ジャッキ４を台車本体２内に収まるように組み込んだ全高の低い送出し台車１を使用し、図５に示すように、鉛直ジャッキ４を収縮さることによって、それまで支えていた架設桁１２２を仮受台５２へ載せ替えて移動するようにしている。従って、従来の送出し台車のような仮受けジャッキ１５０やサンドル１６０を使用することなく架設桁１２２の送出しが可能になり、そのための設置や撤去等に要する手間の他、送出しの際の煩雑な高さ調整作業が不要になる。また、そのことにより架設桁の掛け渡しにかかる作業時間を短縮することが可能となる。   Therefore, according to the delivery method of the present embodiment, the delivery truck 1 having a low overall height is used, and the vertical jack 4 is contracted as shown in FIG. By doing so, the erection girder 122 that has been supported up to that point is transferred to the temporary support 52 and moved. Therefore, it is possible to send the construction girder 122 without using the temporary receiving jack 150 or the sandal 160 like the conventional delivery cart, and in addition to the time and labor required for installation and removal, No complicated height adjustment work is required. In addition, this makes it possible to shorten the work time required for passing the erection girder.

以上、本発明に係る送出し台車について実施形態を説明したが、本発明はこれに限定されることなく、その趣旨を逸脱しない範囲で様々な変更が可能である。   As mentioned above, although embodiment was described about the delivery trolley | bogie which concerns on this invention, this invention is not limited to this, A various change is possible in the range which does not deviate from the meaning.

送出し台車の実施形態を示した外観斜視図である。It is the external appearance perspective view which showed embodiment of the delivery trolley | bogie. 送出し工法の最初の送出し状態を示した図である。It is the figure which showed the first sending state of the sending method. 送出し工法の送出し台車の位置替えの状態を示した図である。It is the figure which showed the state of position change of the delivery trolley | bogie of a delivery method. 送出し工法の送出し完了時の状態を示した図である。It is the figure which showed the state at the time of delivery completion of the delivery method. 送出し台車の位置替え作業を示した図である。It is the figure which showed the position change operation | work of a delivery trolley | bogie. 線路を横切る橋梁架設の現場で行われる架設桁の送出し工法について示した図である。It is the figure shown about the delivery method of the construction girder performed at the site of the bridge construction crossing a track. 従来の送出し台車を示した図である。It is the figure which showed the conventional sending cart. 前方の送出し台車の位置替え作業を示した図である。It is the figure which showed the position change operation | work of the front delivery trolley | bogie.

符号の説明Explanation of symbols

１（１Ａ，１Ｂ） 送出し台車
２ 台車本体
３ 車輪
４ 鉛直ジャッキ
１１ 車輪カバー部
１２ ジャッキ装着部
５２，５３ 仮受台
５５ 仮受装置
１２２ 架設桁
１３０ 走行軌条
１４０ 手延べ機 1 (1A, 1B) Delivery cart 2 Cart body 3 Wheel 4 Vertical jack 11 Wheel cover portion 12 Jack mounting portion 52, 53 Temporary stand 55 Temporary receiving device 122 Construction girder 130 Traveling rail 140 Hand extender

Claims (1)

前後方向に配置された複数の送出し台車に架設桁を載せて支持し、その送出し台車の走行軌条に沿った移動により、架設桁を一方の橋脚から他方の橋脚へ送り出すことによって架設する架設桁の送出し工法において、
送出し台車の走行により架設桁を前進させる工程と、架設桁を前方の送出し台車から仮受台に載せ替えて当該前方の送出し台車を後退させる位置替え工程とを繰り返すものであって、その位置替え工程において、前方の送出し台車の鉛直ジャッキを収縮させて架設桁を下降させ、その下降動作のみによって前記仮受台に架設桁を載せ替えるようにしたものであることを特徴とする送出し工法。 A construction in which an installation girder is mounted on and supported by a plurality of delivery carts arranged in the front-rear direction, and the installation girder is sent from one pier to the other pier by moving along the running rail of the delivery cart. In the digit sending method,
Repeating the step of advancing the erection girder by running the delivery carriage and the position changing step of moving the erection girder from the front delivery trolley to the temporary cradle and retreating the front delivery trolley, In the position changing step, the vertical jack of the delivery cart in front is contracted to lower the installation girder, and the installation girder is remounted on the temporary receiving table only by the lowering operation. Delivery method.
JP2007191624A 2007-07-24 2007-07-24 Delivery method Active JP4474445B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011069162A (en) * 2009-09-28 2011-04-07 Nippon Sharyo Seizo Kaisha Ltd Delivery method for mono-chord lohse bridge girder member
JP2014047525A (en) * 2012-08-31 2014-03-17 Hitachi Ltd Method for erecting bridge between building ridges
CN109440659A (en) * 2018-11-29 2019-03-08 襄阳协利成机车车辆工程设备有限公司 Bridge Erector relays defeated girder system system, Bridge Erector and bridging method
CN110565543A (en) * 2019-08-02 2019-12-13 中铁四院集团岩土工程有限责任公司 Correcting system and correcting method for bridge structure of operation railway

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011069162A (en) * 2009-09-28 2011-04-07 Nippon Sharyo Seizo Kaisha Ltd Delivery method for mono-chord lohse bridge girder member
JP2014047525A (en) * 2012-08-31 2014-03-17 Hitachi Ltd Method for erecting bridge between building ridges
CN109440659A (en) * 2018-11-29 2019-03-08 襄阳协利成机车车辆工程设备有限公司 Bridge Erector relays defeated girder system system, Bridge Erector and bridging method
CN110565543A (en) * 2019-08-02 2019-12-13 中铁四院集团岩土工程有限责任公司 Correcting system and correcting method for bridge structure of operation railway
CN110565543B (en) * 2019-08-02 2021-05-11 中铁四院集团工程建设有限责任公司 Correcting system and correcting method for bridge structure of operation railway

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