JP4378440B2 - Rotating device for bridge construction - Google Patents

Rotating device for bridge construction Download PDF

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JP4378440B2
JP4378440B2 JP2005362621A JP2005362621A JP4378440B2 JP 4378440 B2 JP4378440 B2 JP 4378440B2 JP 2005362621 A JP2005362621 A JP 2005362621A JP 2005362621 A JP2005362621 A JP 2005362621A JP 4378440 B2 JP4378440 B2 JP 4378440B2
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bridge
base member
side base
pier
piston
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JP2007162402A (en
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良司 石井
敏文 鳥部
知樹 水口
雄二 中山
良憲 藤原
實 西
誠二 細渕
知広 早田
光雄 井口
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株式会社横河ブリッジ
オックスジャッキ株式会社
独立行政法人鉄道建設・運輸施設整備支援機構
横河工事株式会社
株式会社 復建エンジニヤリング
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Description

本発明は、予め構築された橋脚間、あるいは、仮設備として仮設された橋脚間に橋梁を架設する際に用いられ、橋梁を橋脚回転可能に支持し、回転により橋梁を架設する橋梁架設用回転装置に関する。   The present invention is used when a bridge is installed between pre-built piers or between piers temporarily installed as temporary equipment, and supports the bridge so that the pier can rotate and rotates the bridge for erection. Relates to the device.

一般に、橋脚間に架設予定の橋梁の下側の空間に、例えば、既設の道路,線路,水路等があり、橋梁の架設時にこれらの使用停止を短時間で終わらせるために、橋脚間に橋梁を架設する際、回転により橋梁を架設することがある。この場合、橋梁の一部を橋脚回転可能に支持する橋梁架設用回転装置が設けられる。   In general, there are existing roads, railways, waterways, etc. in the space below the bridge planned to be built between the piers. In order to finish the suspension of use of these bridges in a short period of time, When erected, bridges may be erected by rotation. In this case, a bridge laying rotation device that supports a part of the bridge so that the pier can rotate is provided.

従来、この種の橋梁架設用回転装置としては、例えば、特許文献1(特開平11−158814号公報)に記載されたものが知られている。   2. Description of the Related Art Conventionally, as this type of bridge laying rotation device, for example, one described in Patent Document 1 (Japanese Patent Laid-Open No. 11-158814) is known.

図22に示すように、橋梁架設用回転装置Saは、橋脚基礎ブロック100に立設される橋脚101の下部に設けられている。この橋梁架設用回転装置Saは、橋脚基礎ブロック100に橋脚101を回転可能に支持する軸機構104を備えて構成されている。
図23に示すように、軸機構104は、橋脚基礎ブロック100の中心部から上側突設する軸111と、軸111の周囲に設けられるフッ素樹脂板等からなる滑板112と、滑板112と接するとともに橋脚101の下面側に設けられ軸111と嵌合する軸受部113を有した底板114とを備えてなる。
As shown in FIG. 22, the bridge laying rotation device Sa is provided at the lower part of the pier 101 standing on the pier foundation block 100. The bridge laying rotation device Sa includes a shaft mechanism 104 that rotatably supports the pier 101 on the pier foundation block 100.
As shown in FIG. 23, the shaft mechanism 104 is in contact with the sliding plate 112, a shaft 111 protruding upward from the center of the pier foundation block 100, a sliding plate 112 made of a fluororesin plate or the like provided around the shaft 111, and the like. And a bottom plate 114 having a bearing portion 113 which is provided on the lower surface side of the pier 101 and engages with the shaft 111.

また、橋梁架設用回転装置Saは、橋脚101の回動時の橋脚101の橋脚基礎ブロック100に対する傾動を抑止する傾動抑止機構115を備えている。この傾動抑止機構115は、橋脚基礎ブロック100上部周囲に設けられる台板110と、橋脚101に設けられ、台板110の外周縁部の裏面を摺接するL字状の摺接体116とを備えて構成されている。また、橋脚101の上部には、橋梁102が固定されている。   The bridge laying rotation device Sa includes a tilt suppression mechanism 115 that suppresses tilting of the pier 101 with respect to the pier foundation block 100 when the pier 101 rotates. The tilt suppression mechanism 115 includes a base plate 110 provided around the upper portion of the pier foundation block 100 and an L-shaped sliding contact body 116 provided on the pier 101 and slidably contacting the back surface of the outer peripheral edge of the base plate 110. Configured. A bridge 102 is fixed to the upper part of the pier 101.

この橋梁架設用回転装置Saを用いて橋梁102を橋脚101間に架設するには、既設の道路,線路,水路等の両側に、橋脚基礎ブロック100を構築し、夫々の橋脚基礎ブロック100の頂部に回転機構Saを設置し、回転機構Saの上部に橋脚101を構築し、ベント105を用いて橋梁102を構築し、橋梁102の反対側に、架台103を構築し、架台103の上部にカウンタウェイト106を設置する。
そして、この状態で両側の橋梁102を回転し、橋梁102先端同士を接合させる。
この場合、橋梁102の回転の際に、橋脚101が橋脚基礎ブロック100に対して傾動しようとすると、橋脚101は、摺接体116により台板110に支持されて、傾動が抑止される。
その後、回転機構Saを撤去し、橋脚基礎ブロック100と橋脚101とを一体化する。
In order to construct the bridge 102 between the bridge piers 101 using this bridge construction rotating device Sa, the bridge pier foundation blocks 100 are constructed on both sides of the existing roads, railways, waterways, etc., and the top portions of the respective pier foundation blocks 100. The rotation mechanism Sa is installed, the pier 101 is constructed on the upper part of the rotation mechanism Sa, the bridge 102 is constructed using the vent 105, the gantry 103 is constructed on the opposite side of the bridge 102, and the counter is placed on the gantry 103. A weight 106 is installed.
In this state, the bridges 102 on both sides are rotated to join the ends of the bridges 102 together.
In this case, when the pier 101 tries to tilt with respect to the pier foundation block 100 during the rotation of the bridge 102, the pier 101 is supported by the base plate 110 by the sliding contact body 116, and the tilt is suppressed.
Thereafter, the rotation mechanism Sa is removed, and the pier foundation block 100 and the pier 101 are integrated.

特開平11−158814号公報JP-A-11-158814

ところで、このような橋梁架設用回転装置Saにあっては、橋脚101,橋梁102等の荷重は、滑板112に接した底板114の平面で受けていることから、橋梁102側が傾動しようとすると、橋梁102に作用するモーメントにより底板114に対しては、不均一にかかることになり、そのため、橋梁102を回転させ難くなり、橋梁102の回転作業の作業効率が悪くなることがあるという問題があった。   By the way, in such a bridge laying rotation device Sa, loads of the bridge pier 101, the bridge 102, and the like are received by the plane of the bottom plate 114 in contact with the sliding plate 112. Therefore, when the bridge 102 side tries to tilt, Due to the moment acting on the bridge 102, the bottom plate 114 is applied unevenly. Therefore, it becomes difficult to rotate the bridge 102, and the work efficiency of the rotation work of the bridge 102 may be deteriorated. It was.

本発明は上記の問題点に鑑みて為されたもので、橋梁の回転時に橋脚側に不均一に橋梁側の荷重がかかっても、橋梁を円滑に回転できるようにし、橋梁の回転作業の作業効率を向上させた橋梁架設用回転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-described problems. Even when a load on the pier side is unevenly applied to the pier side during rotation of the bridge, the bridge can be rotated smoothly, and the work of rotating the bridge can be performed. An object of the present invention is to provide a rotating device for bridge construction with improved efficiency.

このような目的を達成するための本発明の橋梁架設用回転装置は、橋脚間に橋梁を架設する際、橋梁を橋脚に対して回転可能に支持し、回転により上記橋梁を架設する橋梁架設用回転装置であって、上記橋脚側に設けられる橋脚側ベース部材と、上記橋梁側に設けられる橋梁側ベース部材と、上記ベース部材間に設けられ上記橋梁側ベース部材を上記橋脚側ベース部材に対して回転可能にする軸機構と、該軸機構による橋梁側ベース部材の回転の際該橋梁側ベース部材の傾動を抑止する傾動抑止機構とを備えた橋梁架設用回転装置において、上記軸機構を、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか一方側に設けられ端部が略半球状の半球体に形成された一方部材と、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか他方側に設けられ端部が上記半球体を摺接可能に受ける半球状の凹部に形成された他方部材とを備えて構成されている。   In order to achieve such an object, the bridge laying rotation device of the present invention is designed for bridge erection in which the bridge is rotatably supported with respect to the pier when the bridge is erected between the piers, and the bridge is erected by rotation. A rotating device, the pier side base member provided on the pier side, the bridge side base member provided on the bridge side, and the bridge side base member provided between the base members with respect to the pier side base member A rotation mechanism for bridge construction comprising: a shaft mechanism that enables rotation; and a tilt suppression mechanism that suppresses tilting of the bridge-side base member when the bridge-side base member is rotated by the shaft mechanism. One member provided on one side of the pier-side base member and the bridge-side base member and having an end formed in a substantially hemispherical hemisphere, and the other of the pier-side base member and the bridge-side base member Provided on the end portion is configured with the other member formed in hemispherical recesses for receiving the slidably contact the hemisphere.

この橋梁架設用回転装置を用いる際には、予め、クレーン等を用いて、橋脚を構築し、この橋脚に橋梁架設用回転装置を設ける。そして、この橋梁架設用回転装置を介して橋梁を橋脚に支持し、この状態で、橋梁側ベース部材を回転する。これにより、軸機構においては、一方部材の半球体が、半球体の中心軸を軸に、他方部材の凹部に対して摺動して回動する。
この際、傾動抑止機構により橋梁側ベース部材の傾動が抑止される。この場合、橋梁側ベース部材側の荷重が橋脚側ベース部材に対して不均一に係ろうとしても、一方部材の半球体が、凹半球状の凹部で受けられているので、荷重の分散性が良く、橋梁側ベース部材側からの荷重は、他方部材の凹部の略全面に亘って均一に受けられるようになり、そのため、橋梁側ベース部材の回転には殆ど影響がなく、そのまま橋梁側ベース部材の回転を安定させたまま行なうことができるようになり、橋梁側ベース部材の回転作業の作業効率を向上させることができる。
When using this bridge erection rotation device, a pier is constructed in advance using a crane or the like, and the bridge erection rotation device is provided on this pier. Then, the bridge is supported by the bridge pier via the bridge erection rotating device, and the bridge side base member is rotated in this state. As a result, in the shaft mechanism, the hemisphere of one member slides and rotates with respect to the recess of the other member about the central axis of the hemisphere.
At this time, the tilt of the bridge side base member is suppressed by the tilt suppression mechanism. In this case, even if the load on the bridge-side base member side is unevenly related to the pier-side base member, the hemisphere of one member is received by the concave hemispherical concave portion, so that the load dispersibility is Well, the load from the bridge side base member side can be uniformly received over almost the entire surface of the concave part of the other member, so there is almost no effect on the rotation of the bridge side base member, and the bridge side base member is intact. Thus, the rotation efficiency of the bridge-side base member can be improved.

また、必要に応じ、上記一方部材の半球体の中央に当該半球体の中心軸に沿い該半球体の表面に向けて拡開するロート状の貫通孔を設け、上記他方部材の凹部の中央に当該凹部の中心軸に沿い上記貫通孔に遊挿されるロッドを設けている。
これにより、万が一橋梁側ベース部材の過度の傾動があっても、ロッドが貫通孔の内周面に当接するので、一方部材の半球体が他方部材の凹部から外れる事態を防止できる。
Further, if necessary, a funnel-shaped through hole is provided at the center of the hemisphere of the one member along the central axis of the hemisphere so as to expand toward the surface of the hemisphere, and at the center of the recess of the other member. A rod that is loosely inserted into the through hole is provided along the central axis of the recess.
As a result, even if the bridge-side base member is excessively tilted, the rod abuts against the inner peripheral surface of the through hole, so that it is possible to prevent the hemisphere of one member from coming out of the recess of the other member.

更に、必要に応じ、上記一方部材及び他方部材の少なくともいずれか一方を上下移動可能に支持する支持機構を設けた構成としている。
この場合、橋梁の回転前に、支持機構により一方部材及び他方部材の少なくともいずれか一方を上側に移動させ、橋梁側ベース部材を橋脚側ベース部材に対して浮上させる。そのため、橋脚側ベース部材と、橋梁側ベース部材とが接触しなくなるので、橋梁の回転を円滑に行なわせることができる。橋梁の回転後は、支持機構により一方部材及び他方部材の少なくともいずれか一方を元位置に復帰させれば、橋脚側ベース部材と橋梁側ベース部材とを結合させることができる。
また、一方部材または他方部材のいずれか一方を上下動させて、橋梁の高さ調整をすることもできる。
Furthermore, it is set as the structure which provided the support mechanism which supports at least any one of the said one member and the other member so that a vertical movement is possible as needed.
In this case, before the bridge is rotated, at least one of the one member and the other member is moved upward by the support mechanism, and the bridge side base member is lifted with respect to the pier side base member. Therefore, the bridge pier side base member and the bridge side base member are not in contact with each other, so that the bridge can be smoothly rotated. After the bridge rotates, the bridge pier side base member and the bridge side base member can be coupled by returning at least one of the one member and the other member to the original position by the support mechanism.
Also, the height of the bridge can be adjusted by moving either one member or the other member up and down.

更にまた、必要に応じ、上記支持機構を、ピストン及びシリンダからなる油圧駆動ジャッキで構成し、上記ピストンを上記一方部材及び他方部材の少なくともいずれか一方自体で構成している。
一方部材及び他方部材の少なくともいずれか一方がピストンとして構成されているので、軸機構からの橋梁の荷重を直接受けることができ、橋梁側ベース部材の支持を効率良く行なうことができる。
また、ピストンを円柱状に形成し、ピストンの軸と、半球体及び凹部の中心軸とを同軸に設けた場合には、半球体と凹部が摺動する際の摩擦でピストンに回転力が生じた場合、ピストンがシリンダに対して回転することができるので、橋梁側ベース部材の回転を円滑に行なわせることができる。
Furthermore, if necessary, the support mechanism is configured by a hydraulic drive jack including a piston and a cylinder, and the piston is configured by at least one of the one member and the other member.
Since at least one of the one member and the other member is configured as a piston, the bridge load from the shaft mechanism can be directly received, and the bridge-side base member can be efficiently supported.
In addition, when the piston is formed in a columnar shape and the axis of the piston and the central axis of the hemisphere and the recess are provided coaxially, a rotational force is generated in the piston due to friction when the hemisphere and the recess slide. In this case, since the piston can rotate with respect to the cylinder, the bridge-side base member can be smoothly rotated.

そしてまた、必要に応じ、上記傾動抑止機構を、上記橋脚側ベース部材の外周に沿って設けられるガイドレールと、上記橋梁側ベース部材に該橋梁側ベース部材の回転軸を中心にした円周上に等間隔にかつ上記ガイドレール上を移動可能に複数設けられ上記橋梁側ベース部材を上記ガイドレールに対して支持する移動体とを備えて構成している。
これにより、橋梁側ベース部材は、軸機構だけでなく、複数の移動体を介してガイドレールに支持される。そのため、その回転中においては、移動体が橋梁側ベース部材を支持しながらガイドレール上を移動するので、橋梁側ベース部材の傾動が確実に抑止され、橋梁側ベース部材の姿勢が安定し、橋梁側ベース部材の回転を円滑に行なうことができ、回転作業の作業効率を向上させることができる。
更に、ガイドレールはベース部材の外周に沿うように形成されているので、例えば、橋梁の先端側を支持した状態で移動する台車等を用いる場合に比較して、あまり設置スペースをとることがなくなり、橋脚間の既設の道路,線路,水路等に影響しにくくなり、これらの使用停止を短時間で終わらせることができる。
In addition, if necessary, the tilt suppression mechanism is provided on a guide rail provided along the outer periphery of the pier-side base member, and on a circumference around the rotation axis of the bridge-side base member on the bridge-side base member. And a plurality of movable bodies which are provided at equal intervals and are movable on the guide rail and which support the bridge-side base member with respect to the guide rail.
As a result, the bridge-side base member is supported by the guide rail via the plurality of moving bodies as well as the shaft mechanism. Therefore, during the rotation, the moving body moves on the guide rail while supporting the bridge-side base member, so that the tilting of the bridge-side base member is surely suppressed, the posture of the bridge-side base member is stabilized, and the bridge The side base member can be smoothly rotated, and the working efficiency of the rotating work can be improved.
Furthermore, since the guide rail is formed along the outer periphery of the base member, it does not take up much installation space, for example, compared to the case of using a carriage that moves while supporting the front end side of the bridge. This makes it less likely to affect existing roads, tracks, waterways, etc. between piers, and can stop the use of these in a short time.

また、必要に応じ、上記ガイドレールの上面を平面に形成し、上記移動体を上記ガイドレールの上面を摺接する平面を有した摺接体を備えて構成している。
移動体は、橋梁側ベース部材の回転中において、摺接体がガイドレールに摺接して回転する。これにより、移動体は、簡単な構造でガイドレール上を移動することができ、橋梁側ベース部材を安定して支持しつつ回転させることができる。
Further, if necessary, the upper surface of the guide rail is formed into a flat surface, and the movable body is configured to include a sliding contact body having a flat surface that is in sliding contact with the upper surface of the guide rail.
The movable body rotates while the sliding contact body slides on the guide rail while the bridge-side base member rotates. Thereby, the moving body can move on the guide rail with a simple structure, and can rotate while stably supporting the bridge-side base member.

更に、必要に応じ、上記移動体をピストン及びシリンダからなる油圧駆動ジャッキで構成している。
これにより、橋梁側ベース部材が橋脚側ベース部材に対して傾動しようとすると、シリンダの油圧を高めて、傾こうとする側の油圧駆動ジャッキのピストンを進出させて橋梁側ベース部材の姿勢を制御することができる。そのため、橋梁側ベース部材は、橋脚側ベース部材に対して安定した姿勢で支持されるので、橋梁側ベース部材の回転を円滑に行なうことができ、橋梁側ベース部材の回転作業の作業効率を向上させることができる。
Further, the moving body is constituted by a hydraulic drive jack composed of a piston and a cylinder as required.
As a result, when the bridge-side base member tilts relative to the pier-side base member, the hydraulic pressure of the cylinder is increased and the piston of the hydraulically driven jack on the side to be tilted is advanced to control the posture of the bridge-side base member. can do. Therefore, the bridge-side base member is supported in a stable posture with respect to the pier-side base member, so that the bridge-side base member can be smoothly rotated and the work efficiency of the bridge-side base member rotation work is improved. Can be made.

更にまた、必要に応じ、上記ピストンの進出距離を検知する検知手段と、該検知手段の検知に基づいて上記油圧駆動ジャッキのシリンダの油圧を制御する制御手段とを設けている。
これにより、油圧駆動ジャッキのピストンの進出,後退は、橋梁側ベース部材の回転中においても制御手段により自動で行なわれるので、傾動しようとする橋梁側ベース部材に即座に対応でき、橋梁側ベース部材を安定した状態で回動させることができ、回転作業の作業効率を向上させることができる。
Furthermore, if necessary, there are provided detection means for detecting the advance distance of the piston, and control means for controlling the hydraulic pressure of the cylinder of the hydraulic drive jack based on the detection of the detection means.
As a result, the piston of the hydraulic drive jack is advanced and retracted automatically by the control means even during rotation of the bridge-side base member, so that it can immediately respond to the bridge-side base member to be tilted. Can be rotated in a stable state, and the working efficiency of the rotating work can be improved.

また、必要に応じ、上記橋梁側ベース部材を回転する回転駆動機構を設け、上記回転駆動機構を、上記ガイドレールに着脱自在に取り付け可能なクランプ部と、該クランプ部に一端が回動可能に連結され他端が上記移動体に回動可能に連結され、上記クランプ部のクランプ時に伸長若しくは縮小して上記移動体を移動させ、上記クランプ部のクランプ解除時に元位置に復帰する伸縮機構とを備えて構成している。
この回転駆動機構を用いて、橋梁側ベース部材を回転させるには、クランプ部を作動させてガイドレールをクランプし、伸縮機構を伸長または縮小させて、一方の回転駆動機構のクランプ部と、移動体を離間または近接させ、その後、クランプ部のクランプを解除し、伸縮機構を元位置に復帰させる。次に、上記と同様にして、クランプ部でガイドレールをクランプして伸縮機構を離間または近接させる。これを繰り返し、回転駆動機構により、橋梁側ベース部材を所望の角度回転させる。
これにより、橋梁側ベース部材を回転駆動機構で回転するので、容易に橋梁側ベース部材の回転を行なうことができ、回転作業の作業効率を向上させることができる。
Further, if necessary, a rotation drive mechanism for rotating the bridge side base member is provided, and the rotation drive mechanism can be detachably attached to the guide rail, and one end of the clamp portion can be rotated. A telescopic mechanism connected to the movable body at the other end so as to be rotatable, and extending or contracting when the clamp portion is clamped to move the movable body and returning to the original position when the clamp portion is released from the clamp. It is prepared and configured.
In order to rotate the bridge side base member using this rotation drive mechanism, the clamp part is operated to clamp the guide rail, and the expansion / contraction mechanism is expanded or contracted to move with the clamp part of one rotation drive mechanism. The body is moved away from or close to the body, and then the clamp part is released to return the expansion / contraction mechanism to the original position. Next, in the same manner as described above, the guide rail is clamped by the clamp portion, and the expansion / contraction mechanism is separated or brought close to each other. This is repeated and the bridge-side base member is rotated by a desired angle by the rotation drive mechanism.
Thereby, since the bridge side base member is rotated by the rotation drive mechanism, the bridge side base member can be easily rotated, and the working efficiency of the rotation work can be improved.

更に、必要に応じ、上記伸縮機構をピストン及びシリンダからなる油圧駆動ジャッキで構成している。
これにより、伸縮機構に油圧駆動ジャッキを用いたので、小さな簡単な構造で移動体とクランプ部とを離間または近接させることができ、回転を容易に行なうことができる。
Further, if necessary, the expansion / contraction mechanism is constituted by a hydraulic drive jack composed of a piston and a cylinder.
Thereby, since the hydraulic drive jack is used for the expansion / contraction mechanism, the movable body and the clamp part can be separated or brought close to each other with a small simple structure, and the rotation can be easily performed.

次にまた、必要に応じ、上記橋梁側ベース部材に設けられる上記一方部材または上記他方部材に対し上記橋梁側ベース部材を移動可能に支持し、上記橋梁側ベース部材を移動させ適宜の位置でロックする移動機構を設けた構成としている。
これにより、例えば、橋梁の回転後に、橋梁を、架設される橋脚側に合わせて橋梁側ベース部材を移動させることができ、架設作業を容易に行なわせることができる。
Next, if necessary, the bridge side base member is movably supported with respect to the one member or the other member provided on the bridge side base member, and the bridge side base member is moved and locked at an appropriate position. The moving mechanism is provided.
Thereby, for example, after the bridge is rotated, the bridge-side base member can be moved in accordance with the bridge pier side where the bridge is installed, and the installation work can be easily performed.

また、必要に応じ、上記橋梁側ベース部材の下側に摺接板を設け、上記橋梁側ベース部材側の一方部材または他方部材の上側に上記摺接板に摺接する反力材を設け、上記移動機構を、ピストン及びシリンダを有するとともにピストン及びシリンダのいずれか一方が上記摺接板に固定されいずれか他方が上記反力材に当接しピストンの進退動により上記摺接板と反力材とを相対移動させる複数の油圧駆動ジャッキを備えて構成している。
この移動機構を用いて、一方部材または他方部材に対して橋梁側ベース部材を移動させる場合には、移動機構の油圧駆動ジャッキにより反力材を押圧し、摺接板を反力材に対して摺動させて、摺接板の反力材による支持位置を移動させる。これにより、一方部材または他方部材に支持された状態で、橋梁側ベース部材を回転軸に直交する平面方向に、ピストンの進出分だけ自在に移動させることができる。
Further, if necessary, a sliding contact plate is provided on the lower side of the bridge side base member, a reaction force material that is in sliding contact with the sliding contact plate is provided on one side of the bridge side base member side or the other member, and The moving mechanism includes a piston and a cylinder, and either one of the piston and the cylinder is fixed to the sliding contact plate, and the other is in contact with the reaction force material, and the sliding contact plate and the reaction force material are Are provided with a plurality of hydraulic drive jacks for relative movement.
When moving the bridge-side base member with respect to one member or the other member using this moving mechanism, the reaction force member is pressed against the reaction force member by pressing the reaction force member with the hydraulic drive jack of the movement mechanism. The support position by the reaction force material of the sliding contact plate is moved by sliding. Accordingly, the bridge-side base member can be freely moved in the plane direction orthogonal to the rotation axis by the advancement of the piston while being supported by the one member or the other member.

本発明の橋梁架設用回転装置によれば、軸機構を、橋脚側ベース部材及び橋梁側ベース部材のいずれか一方側に設けられ端部が略半球状の半球体に形成された一方部材と、橋脚側ベース部材及び橋梁側ベース部材のいずれか他方側に設けられ端部が半球体を摺接可能に受ける半球状の凹部に形成された他方部材とを備えて構成したので、橋梁側ベース部材が傾動しようとしても、橋梁側ベース部材側からの荷重を、他方部材の凹部で分散して受けることができ、これにより、橋梁側ベース部材の回転には殆ど影響がなく、そのまま橋梁側ベース部材の回転を行なうことができるようになり、橋梁側ベース部材の回転作業の作業効率を向上させることができる。   According to the bridge erection rotating device of the present invention, the shaft mechanism is provided on one side of the pier side base member and the bridge side base member, and one end member is formed into a substantially hemispherical hemisphere, The bridge-side base member is provided with the other member formed on the other side of the bridge pier side base member and the bridge side base member and having the other end formed in a hemispherical recess whose end is slidably received by the hemisphere. Even if it tries to tilt, the load from the bridge side base member side can be distributed and received by the recesses of the other member, so that the rotation of the bridge side base member is hardly affected, and the bridge side base member is left as it is. Thus, the work efficiency of the rotation work of the bridge-side base member can be improved.

以下、添付図面に基づいて、本発明の実施の形態に係る橋梁架設用回転装置について詳細に説明する。この橋梁架設用回転装置は、主に、橋脚間に、例えば、既設の線路,道路,水路等があり、架設予定の橋梁の下部に橋梁を一時的に支えるためのベント等が設置できない場合に用いられる。   Hereinafter, based on an accompanying drawing, a rotation device for bridge construction concerning an embodiment of the invention is explained in detail. This rotating device for bridge construction is mainly used when there are existing tracks, roads, waterways, etc. between bridge piers, and vents etc. for temporarily supporting the bridge cannot be installed under the bridge to be built. Used.

図1乃至図3に示すように、橋梁架設用回転装置Sは、橋脚1,2間に橋梁4を架設する際、橋梁4を橋脚1に回転可能に支持し、回転により橋梁4を架設するものである。
橋脚1は、円筒形状に形成されており、地中に打ち込まれた基礎3部分に立設される。
橋梁4は、長手方向に連設された複数の橋梁ブロック4aで構成されている。橋梁4は、その回転前に、橋梁ブロック4aをベント5により一時的に支持した状態で隣り合う橋梁ブロック4aを接合して構築される。
As shown in FIG. 1 to FIG. 3, when installing the bridge 4 between the piers 1 and 2, the bridge laying rotation device S rotatably supports the bridge 4 on the pier 1 and lays the bridge 4 by rotation. Is.
The pier 1 is formed in a cylindrical shape, and is erected on a portion of the foundation 3 driven into the ground.
The bridge 4 is composed of a plurality of bridge blocks 4a connected in the longitudinal direction. The bridge 4 is constructed by joining adjacent bridge blocks 4a in a state where the bridge block 4a is temporarily supported by the vent 5 before the rotation.

橋梁架設用回転装置Sの基本的な構成は、橋脚1の上部に設けられる橋脚側ベース部材10と、橋梁4の下部に設けられる橋梁側ベース部材20と、ベース部材間に設けられ橋梁側ベース部材20を橋脚側ベース部材10に対して回転可能にする軸機構30と、軸機構30による橋梁側ベース部材20の回転の際橋梁側ベース部材20の傾動を抑止する傾動抑止機構50とを備えてなる。   The basic construction of the bridge erection rotating device S is as follows. The bridge pier side base member 10 provided at the upper part of the pier 1, the bridge side base member 20 provided at the lower part of the bridge 4, and the bridge side base provided between the base members. A shaft mechanism 30 that enables the member 20 to rotate with respect to the pier-side base member 10 and a tilt suppression mechanism 50 that suppresses tilting of the bridge-side base member 20 when the bridge-side base member 20 is rotated by the shaft mechanism 30 are provided. It becomes.

橋脚側ベース部材10は、橋脚1に一体に形成された円筒体11と、円筒体11の内部に設けられ軸機構30が取り付けられる取付部材12とを備えてなる。
取付部材12は、円筒体11の内壁に円筒体11の中心を通り互いに直交する2つの直線上に十字に4箇所夫々溶接固定される台部材13と、この台部材13に、先端部が高さ調整材15を介してボルト及びナットで固定される十字形状の受梁14とを備えてなる。
The pier side base member 10 includes a cylindrical body 11 formed integrally with the pier 1 and an attachment member 12 provided inside the cylindrical body 11 to which the shaft mechanism 30 is attached.
The mounting member 12 includes a base member 13 that is welded and fixed to the inner wall of the cylindrical body 11 at four locations on two straight lines passing through the center of the cylindrical body 11 and orthogonal to each other. And a cross-shaped receiving beam 14 fixed with bolts and nuts via a thickness adjusting member 15.

橋梁側ベース部材20は、橋梁ブロック4aと接合されて橋梁4の一部となる橋梁基部部材21と、橋梁基部部材21の下面から垂下して設けられ橋脚側ベース部材10と同じ径を有した金属製の円筒状体22と、円筒状体22の内部に設けられ後述の軸機構30の反力材38に載置される摺接板23とを備えてなる。橋梁基部部材21には、図4及び図5に示すように、底部に円筒状体22の内部に連通する出入口24aが形成された断面円形の凹所24が備えられている。
摺接板23は、図1乃至図3,図6に示すように、その中心が円筒状体22の軸を中心とする十字状に形成されている。また、摺接板23は、摺接板取付部25を介して橋梁基部部材21と、円筒状体22に固着されている。摺接板取付部25は、円筒状体22の内側面に軸方向に平行かつ互いに平行な矩形状の一対の板材26と、一対の板材間に架設された互いに平行な一対の板部材27とを備えてなる。板材26と板部材27とは、井桁状に設けられ、その上端縁が橋梁基部部材21の下面に接合されている。また、板部材27は、その中央に外側に向けて突設されるリブ部材28が設けられている。更に、板部材27の上側中央には、出入口24aに対応する位置に切欠き29が設けられている。
The bridge-side base member 20 is joined to the bridge block 4 a and becomes a bridge base member 21 that becomes a part of the bridge 4. The bridge-side base member 20 is suspended from the lower surface of the bridge base member 21 and has the same diameter as the pier-side base member 10. A cylindrical body 22 made of metal and a sliding contact plate 23 provided inside the cylindrical body 22 and placed on a reaction force member 38 of the shaft mechanism 30 described later are provided. As shown in FIGS. 4 and 5, the bridge base member 21 is provided with a recess 24 having a circular cross section in which an entrance / exit 24 a communicating with the inside of the cylindrical body 22 is formed at the bottom.
As shown in FIGS. 1 to 3 and 6, the slidable contact plate 23 is formed in a cross shape whose center is centered on the axis of the cylindrical body 22. The sliding contact plate 23 is fixed to the bridge base member 21 and the cylindrical body 22 via the sliding contact plate mounting portion 25. The sliding contact plate mounting portion 25 includes a pair of rectangular plates 26 parallel to each other in the axial direction on the inner surface of the cylindrical body 22, and a pair of parallel plate members 27 provided between the pair of plates. It is equipped with. The plate member 26 and the plate member 27 are provided in a cross beam shape, and the upper end edge thereof is joined to the lower surface of the bridge base member 21. The plate member 27 is provided with a rib member 28 that protrudes outward from the center thereof. Further, a notch 29 is provided in the upper center of the plate member 27 at a position corresponding to the entrance / exit 24a.

図1,図7及び図8にも示すように、軸機構30は、橋脚側ベース部材10及び橋梁側ベース部材20のいずれか一方側に設けられ端部が略半球状の半球体32に形成された一方部材31と、橋脚側ベース部材10及び橋梁側ベース部材20のいずれか他方側に設けられ端部が半球体32を摺接可能に受ける半球状の凹部34に形成された他方部材33とを備えて構成されている。この軸機構30は、実施の形態においては、一方部材31が橋梁側ベース部材20側に、他方部材33が橋脚側ベース部材10側に夫々設けられている。   As shown in FIGS. 1, 7, and 8, the shaft mechanism 30 is formed in a hemispherical body 32 that is provided on one side of the pier-side base member 10 and the bridge-side base member 20 and has an almost hemispherical end. One member 31 formed on the other side of the pier side base member 10 and the bridge side base member 20 and the other member 33 formed on a hemispherical recess 34 whose end portion receives the hemispherical body 32 so as to be slidable. And is configured. In the embodiment, the shaft mechanism 30 is provided with one member 31 on the bridge side base member 20 side and the other member 33 on the bridge pier side base member 10 side.

一方部材31は、矩形状の板体35の下面に半球体32が形成されている。また、一方部材31の半球体32の中央に半球体32の中心軸に沿い半球体32の表面に向けて拡開するロート状の貫通孔36が設けられている。貫通孔36は、板体35側に設けられ、後述のロッド43の頭が収納される収納部37に連通している。
また、一方部材31は、板体の上側には、摺接板23に摺接する反力材38を備えている。反力材38は、正方形の上側板39と、上側板39と同形状の下側板40と、上側板39を下側板40に対して支持する支持部材41とにより、横断面正方形の直方体状に形成されている。また、上側板39は、摺接板23にボルト及びナットを用いて着脱可能に結合される。また、下側板40は、一方部材31の板体35に着脱可能に結合される。
On the other hand, the member 31 has a hemisphere 32 formed on the lower surface of a rectangular plate 35. In addition, a funnel-shaped through hole 36 is provided at the center of the hemisphere 32 of the one member 31 so as to expand toward the surface of the hemisphere 32 along the central axis of the hemisphere 32. The through hole 36 is provided on the plate body 35 side and communicates with a storage portion 37 in which a head of a rod 43 described later is stored.
The one member 31 includes a reaction material 38 that is in sliding contact with the sliding contact plate 23 on the upper side of the plate body. The reaction force member 38 is formed in a rectangular parallelepiped shape having a square cross section by a square upper plate 39, a lower plate 40 having the same shape as the upper plate 39, and a support member 41 that supports the upper plate 39 with respect to the lower plate 40. Is formed. The upper plate 39 is detachably coupled to the sliding contact plate 23 using bolts and nuts. The lower plate 40 is detachably coupled to the plate body 35 of the one member 31.

他方部材33の凹部34には、半球体32との摩擦を低減するために高圧面用の摺動部材42が貼り付けられている(半球体32は、例えば、所謂S54Cと呼ばれる表面にハードクロムメッキが施された機械構造用炭素鋼材で形成され、摺動部材は、例えば、PTFE(フッ素樹脂)等で構成されている。また、半球体32と摺動部材42の滑り摩擦係数は、μ=0.05である。)。
また、他方部材33の凹部34の中央に凹部34の中心軸に沿い貫通孔36に遊挿されるロッド43が設けられている。ロッド43は、凹部34の中央に設けた雌ネジ部44に先端が螺合する雄ネジを有したボルトで構成されている。
In the recess 34 of the other member 33, a sliding member 42 for a high pressure surface is attached to reduce the friction with the hemisphere 32 (the hemisphere 32 has, for example, a hard chrome on a surface called S54C. The sliding member is made of, for example, PTFE (fluorine resin), etc. The sliding friction coefficient between the hemisphere 32 and the sliding member 42 is μ. = 0.05).
Further, a rod 43 that is loosely inserted into the through hole 36 along the central axis of the recess 34 is provided at the center of the recess 34 of the other member 33. The rod 43 is constituted by a bolt having a male screw whose tip is screwed into a female screw portion 44 provided in the center of the recess 34.

また、一方部材31及び他方部材33の少なくともいずれか一方を上下移動可能に支持する支持機構45を設けている。実施の形態においては、支持機構45を、ピストン46及びシリンダ47からなる油圧駆動ジャッキで構成している。そして、支持機構45のピストンを他方部材33自体で構成している。この支持機構45の油圧駆動ジャッキは、図14に示すように、シリンダ47に接続されるポンプ77からのオイルにより駆動される。
また、支持機構45のピストン46である他方部材33は、その下端側が円柱状に形成され、シリンダ47に対して回転可能になっている。また、支持機構45のピストン46は、その軸が凹部34の中心軸と同軸に形成されている。支持機構45のシリンダ47は、受梁14の中央にボルト及びナットにより着脱自在に取り付けられている。また、支持機構45のシリンダ47には、支持機構45のピストン46がピストン46の軸回りに回動可能に挿通されている。
Further, a support mechanism 45 that supports at least one of the one member 31 and the other member 33 so as to be vertically movable is provided. In the embodiment, the support mechanism 45 is constituted by a hydraulic drive jack including a piston 46 and a cylinder 47. The piston of the support mechanism 45 is constituted by the other member 33 itself. The hydraulic drive jack of the support mechanism 45 is driven by oil from a pump 77 connected to the cylinder 47 as shown in FIG.
The other member 33, which is the piston 46 of the support mechanism 45, has a lower end formed in a columnar shape and is rotatable with respect to the cylinder 47. The piston 46 of the support mechanism 45 is formed so that its axis is coaxial with the central axis of the recess 34. The cylinder 47 of the support mechanism 45 is detachably attached to the center of the receiving beam 14 with bolts and nuts. A piston 46 of the support mechanism 45 is inserted into the cylinder 47 of the support mechanism 45 so as to be rotatable about the axis of the piston 46.

図1,図7,図8乃至12に示すように、傾動抑止機構50は、橋脚側ベース部材10の外周に沿って設けられるガイドレール51と、橋梁側ベース部材20に橋梁側ベース部材20の回転軸を中心とする円周上に等間隔にかつガイドレール51上を移動可能に複数設けられ橋梁側ベース部材20をガイドレール51に対して支持する移動体60とを備えた構成としている。   As shown in FIGS. 1, 7, and 8 to 12, the tilt prevention mechanism 50 includes a guide rail 51 provided along the outer periphery of the pier side base member 10, and the bridge side base member 20 and the bridge side base member 20. A plurality of movable bodies 60 that support the bridge-side base member 20 with respect to the guide rail 51 are provided so as to be movable on the guide rail 51 at equal intervals on the circumference around the rotation axis.

ガイドレール51は、橋脚側ベース部材10の円筒体11の軸と同軸のドーナツ状の上側フランジ52と、上側フランジ52と同形状の下側フランジ53と、下側フランジ53に対して上側フランジ52を支持する円筒状の内ウェブ54aと、内ウェブ54aに同軸に設けられる円筒状の外ウェブ54bと、上側フランジ52の上面に載置されたステンレス板55とを備えて構成されている。下側フランジ53は、橋脚側ベース部材10に底部反力ブラケット57を介して結合されている。底部反力ブラケット57は、ボルト及びナットにより、ガイドレール51及び橋脚側ベース部材10に着脱可能に結合されている。   The guide rail 51 includes a donut-shaped upper flange 52 coaxial with the axis of the cylindrical body 11 of the pier-side base member 10, a lower flange 53 having the same shape as the upper flange 52, and an upper flange 52 with respect to the lower flange 53. The cylindrical inner web 54 a is supported, the cylindrical outer web 54 b provided coaxially with the inner web 54 a, and the stainless steel plate 55 placed on the upper surface of the upper flange 52. The lower flange 53 is coupled to the pier side base member 10 via a bottom reaction force bracket 57. The bottom reaction force bracket 57 is detachably coupled to the guide rail 51 and the pier side base member 10 by bolts and nuts.

移動体60は、ガイドレールと51、橋梁側ベース部材20の円筒状体22外側に設けた上部ブラケット61間に設けられ、上部ブラケット61を介して橋梁側ベース部材20を支持している。実施の形態においては、移動体60及び上部ブラケット61は、円筒状体22の軸を中心に60度毎に6箇所設けられている。
移動体60は、ピストン71及びシリンダ72からなる油圧駆動ジャッキで構成されている。この移動体60の油圧駆動ジャッキは、図14に示すように、シリンダ72に接続されるポンプ77からのオイルにより駆動される。
また、移動体60のシリンダ72の下側には、ガイドレール51のステンレス板55を摺接する平面を有した摺接体73を備えている。摺接体73は、フッ素樹脂製の板で構成されている(ステンレス板55とフッ素樹脂板の滑り摩擦係数は、μ=0.10である。)。
The moving body 60 is provided between the guide rail 51 and the upper bracket 61 provided outside the cylindrical body 22 of the bridge side base member 20, and supports the bridge side base member 20 via the upper bracket 61. In the embodiment, the moving body 60 and the upper bracket 61 are provided at six positions every 60 degrees around the axis of the cylindrical body 22.
The moving body 60 is configured by a hydraulic drive jack including a piston 71 and a cylinder 72. The hydraulic drive jack of the moving body 60 is driven by oil from a pump 77 connected to a cylinder 72 as shown in FIG.
Further, a sliding contact body 73 having a flat surface for sliding contact with the stainless steel plate 55 of the guide rail 51 is provided below the cylinder 72 of the moving body 60. The sliding contact body 73 is made of a fluororesin plate (the sliding friction coefficient between the stainless steel plate 55 and the fluororesin plate is μ = 0.10).

上部ブラケット61は、円筒状体22の外側に沿って円弧状に形成される取付部62と、取付部62の下端に設けられ円筒状体22の軸に対して直交する平面を有しこの平面がピストン71で押圧される被押圧板63と、取付部62に対して被押圧板63を補強する補強部64とを備えてなる。取付部62は、ボルト及びナットにより円筒状体22に着脱可能に取り付けられる。
また、被押圧板63の平面には、ピストン71が接している。また、被押圧板63の平面には、この平面に立設され、移動体60を覆って移動体60を保持する保持部材65が設けられている。保持部材65は、移動体60の油圧駆動ジャッキのシリンダ72の外形に沿う円弧状に形成された一対の板状体66で構成されている。
The upper bracket 61 has a mounting portion 62 formed in an arc shape along the outer side of the cylindrical body 22, and a plane provided at the lower end of the mounting portion 62 and orthogonal to the axis of the cylindrical body 22. Is provided with a pressed plate 63 that is pressed by the piston 71 and a reinforcing portion 64 that reinforces the pressed plate 63 against the mounting portion 62. The attachment portion 62 is detachably attached to the cylindrical body 22 with bolts and nuts.
The piston 71 is in contact with the plane of the pressed plate 63. Further, a holding member 65 is provided on the plane of the pressed plate 63 so as to stand on the plane and cover the moving body 60 and hold the moving body 60. The holding member 65 includes a pair of plate-like bodies 66 formed in an arc shape along the outer shape of the cylinder 72 of the hydraulic drive jack of the moving body 60.

また、橋梁架設用回転装置Sには、移動体60に係る荷重及び移動体60のピストン71の進出距離を検知する検知手段と、検知手段の検知に基づいて移動体60の油圧駆動ジャッキを制御する制御手段とが設けられている。
検知手段は、例えば、支持機構45及び各移動体60のシリンダ72に係る油圧を検知する油圧検知センサ75と、ピストン71の進出距離を計測するリニアエンコーダ76とを備えた構成としている。また、検知手段は、支持機構45のシリンダ47に係る油圧検知センサ75a及び支持機構45のピストン46の進出距離を計測するリニアエンコーダ76aを備えている。
Further, in the bridge laying rotation device S, a detection unit that detects a load related to the moving body 60 and an advance distance of the piston 71 of the moving body 60 and a hydraulic drive jack of the moving body 60 are controlled based on the detection by the detecting means. And a control means is provided.
The detection means includes, for example, a hydraulic pressure detection sensor 75 that detects the hydraulic pressure applied to the support mechanism 45 and the cylinder 72 of each moving body 60, and a linear encoder 76 that measures the advance distance of the piston 71. The detection means includes a hydraulic pressure detection sensor 75 a related to the cylinder 47 of the support mechanism 45 and a linear encoder 76 a that measures the advance distance of the piston 46 of the support mechanism 45.

リニアエンコーダ76は、図9乃至図11に示すように、各上部ブラケット61に設けられる本体67と、本体67に一端が巻き取られるワイヤ69と、ワイヤ69の他端をシリンダ側に固定するワイヤ固定部材68とを備えてなる。このリニアエンコーダ76は、本体67において、ワイヤ69が引出された距離をカウントすることにより、ピストン71の進出距離hを計測している。
また、リニアエンコーダ76aは、リニアエンコーダ76と同様のもので構成され、取付状態を図示しないが、シリンダ46側に本体が取り付けられ、シリンダ47側にワイヤ固定部材が取り付けられる。
As shown in FIGS. 9 to 11, the linear encoder 76 includes a main body 67 provided on each upper bracket 61, a wire 69 wound on one end of the main body 67, and a wire for fixing the other end of the wire 69 to the cylinder side. And a fixing member 68. The linear encoder 76 measures the advance distance h of the piston 71 by counting the distance that the wire 69 is pulled out in the main body 67.
The linear encoder 76a is configured in the same manner as the linear encoder 76, and the attachment state is not shown, but the main body is attached to the cylinder 46 side, and the wire fixing member is attached to the cylinder 47 side.

更にまた、制御手段は、シリンダ47,72とポンプ77との間に介装される油圧制御パネル78(所謂、油圧制御盤と呼ばれる)と、検知手段の油圧検知センサ75,75a及びリニアエンコーダ76,76aの検知に基づいて油圧制御パネル78を制御してポンプ77からのオイルの圧力を制御する制御部79(所謂、制御操作盤と呼ばれる)とを備えてなる。
油圧制御パネル78は、ポンプ77からのオイルが入力される入力口59aと、オイルの油圧を異ならせて出力する4つの出力口59b,59cとを備えている。4つの出力口のうち1つ(59b)は、シリンダ46に接続される管58aが接続されている。また、残りの3つの各出力口(59c)には、隣り合う2つの移動体60のシリンダ72に夫々接続され、この2つのシリンダ72同じ油圧がかけられるように、末端が2つに分岐した管58が接続されている。
Furthermore, the control means includes a hydraulic control panel 78 (called a so-called hydraulic control panel) interposed between the cylinders 47 and 72 and the pump 77, hydraulic detection sensors 75 and 75a as detection means, and a linear encoder 76. , 76 a, and a control unit 79 (so-called control operation panel) for controlling the oil pressure from the pump 77 by controlling the hydraulic control panel 78.
The hydraulic control panel 78 includes an input port 59a to which oil from the pump 77 is input, and four output ports 59b and 59c that output the oil with different oil pressures. One of the four output ports (59b) is connected to a pipe 58a connected to the cylinder 46. Further, each of the remaining three output ports (59c) is connected to the cylinders 72 of the two adjacent moving bodies 60, and the two branches 72 branch so that the same hydraulic pressure is applied. A tube 58 is connected.

制御部79は、予め、支持機構45の油圧駆動ジャッキのピストン46で橋梁側ベース部材20側に加えられる力の設定値Aと、各移動体60の油圧駆動ジャッキのピストン71で橋梁側ベース部材20側に加えられる力の設定値Bとが設定可能になっている。この力A及び力Bと橋梁側ベース部材20よりも上側の荷重Fとの関係は、荷重F=A+6×Bになるように設定される(実施の形態においては、A:6×B=80〜90:10〜20となるように設定した)。   The control unit 79 preliminarily sets the set value A of the force applied to the bridge side base member 20 side by the piston 46 of the hydraulic drive jack of the support mechanism 45, and the bridge side base member by the piston 71 of the hydraulic drive jack of each moving body 60. The set value B of the force applied to the 20 side can be set. The relationship between the force A and the force B and the load F above the bridge-side base member 20 is set to be a load F = A + 6 × B (in the embodiment, A: 6 × B = 80). To 90: 10-20).

また、制御部79には、設定値Aに対して許容範囲値A±αが設定されるとともに、設定値Bに対して許容範囲値B±βが設定される。
そして、制御部79は、油圧検知センサ75aで検知した油圧から算出した支持機構45の油圧駆動ジャッキのピストン46から加えられる力fと、許容範囲値A±αとを比較し、油圧制御パネル78を介してシリンダ47の油圧を制御する。また、油圧検知センサ75で検知した油圧から算出した移動体60の油圧駆動ジャッキのピストン71から加えられる力fと、許容範囲値B±βとを比較し、油圧制御パネル78を介してシリンダ72の油圧を制御する。
詳しくは作用の部分で説明する。
In the control unit 79, an allowable range value A ± α is set for the set value A, and an allowable range value B ± β is set for the set value B.
Then, the control unit 79 compares the force f 1 applied from the piston 46 of the hydraulic drive jack of the support mechanism 45 calculated from the hydraulic pressure detected by the hydraulic pressure detection sensor 75a with the allowable range value A ± α, and the hydraulic control panel The hydraulic pressure of the cylinder 47 is controlled via 78. Further, the force f 2 applied from the piston 71 of the hydraulic drive jack of the moving body 60 calculated from the hydraulic pressure detected by the hydraulic pressure detection sensor 75 is compared with the allowable range value B ± β, and the cylinder is set via the hydraulic control panel 78. 72 is controlled.
Details will be described in the operation section.

また、制御部79は、同じ管58が接続される2つの移動体60のうち、一方の移動体60の油圧駆動ジャッキのピストン71のリニアエンコーダ76で検知した進出距離h(h1)と、他方の移動体60の油圧駆動ジャッキのピストン71のリニアエンコーダ76で進出距離h(h2)の差の絶対値が、許容値γを越える場合には、装置全体を一次的に停止させる。   Further, the control unit 79 determines the advance distance h (h1) detected by the linear encoder 76 of the piston 71 of the hydraulically driven jack of one of the two moving bodies 60 to which the same pipe 58 is connected, and the other. When the absolute value of the difference in advance distance h (h2) exceeds the allowable value γ by the linear encoder 76 of the piston 71 of the hydraulically driven jack of the movable body 60, the entire apparatus is temporarily stopped.

図7及び図13に示すように、橋梁架設用回転装置Sには、橋梁側ベース部材20を回転する回転駆動機構80が設けられている。回転駆動機構80は、ガイドレール51に着脱自在に取り付け可能なクランプ部81と、クランプ部81に一端が回動可能に連結され他端が移動体60に回動可能に連結され、クランプ部81のクランプ時に伸長若しくは縮小して移動体60を移動させ、クランプ部81のクランプ解除時に元位置に復帰する伸縮機構82とを備えた構成としている。この回転駆動機構80は、実施の形態においては、橋梁側ベース部材20の円筒状体22の軸を中心に、点対称的に2箇所に配置されている。
クランプ部81は、上側フランジ52の内周及び外周において、この上側フランジ52を上下から挟み込むクランプで構成されている。クランプ部81は、油圧ポンプ(図示せず)により、油圧駆動させられる。このクランプ部81のクランプ及びクランプ解除の制御は、制御部79によってなされる。また、クランプ部81のクランプ解除時には、ガイドレール51上をガイドレール51に沿って移動可能になっている。
As shown in FIGS. 7 and 13, the bridge laying rotation device S is provided with a rotation drive mechanism 80 that rotates the bridge-side base member 20. The rotation drive mechanism 80 includes a clamp part 81 that can be detachably attached to the guide rail 51, one end rotatably connected to the clamp part 81, and the other end rotatably connected to the moving body 60. The movable body 60 is moved by being expanded or contracted at the time of clamping, and an expansion / contraction mechanism 82 that returns to the original position when the clamp 81 is released from the clamp is provided. In the embodiment, the rotational drive mechanism 80 is arranged in two points symmetrically about the axis of the cylindrical body 22 of the bridge-side base member 20.
The clamp portion 81 is configured by a clamp that sandwiches the upper flange 52 from above and below on the inner periphery and the outer periphery of the upper flange 52. The clamp part 81 is hydraulically driven by a hydraulic pump (not shown). Control of clamping and releasing of the clamp unit 81 is performed by the control unit 79. Further, when the clamp 81 is released from the clamp, the guide rail 51 can be moved along the guide rail 51.

伸縮機構82は、ピストン84及びシリンダ85からなる油圧駆動ジャッキで構成されている。
この伸縮機構82の油圧駆動ジャッキは、一端及び他端にクレビス86が設けられている。そして、このクレビス86は、移動体60が取り付けられる上部ブラケット61と、クランプ部81とに設けられたクレビス金具87とともにピン88が挿通されて、上部ブラケット61及びクランプ部81に回動可能に連結される。この伸縮機構82の油圧駆動ジャッキは、油圧ポンプ(図示せず)からのオイルの供給により作動させられる。
尚、図示しないが、伸縮機構82の油圧駆動ジャッキは、制御部79により、油圧ポンプからの油圧を制御されて駆動させられる。
The expansion / contraction mechanism 82 is configured by a hydraulic drive jack including a piston 84 and a cylinder 85.
The hydraulic drive jack of the telescopic mechanism 82 is provided with a clevis 86 at one end and the other end. The clevis 86 is pivotally connected to the upper bracket 61 and the clamp portion 81 by inserting a pin 88 together with the clevis fitting 87 provided on the upper bracket 61 to which the movable body 60 is attached and the clamp portion 81. Is done. The hydraulic drive jack of the telescopic mechanism 82 is operated by supplying oil from a hydraulic pump (not shown).
Although not shown, the hydraulic drive jack of the telescopic mechanism 82 is driven by the control unit 79 by controlling the hydraulic pressure from the hydraulic pump.

また、図1,図7,図8に示すように、橋梁側ベース部材20に設けられる一方部材31または他方部材33に対し橋梁側ベース部材20を移動可能に支持し、橋梁側ベース部材20を移動させ適宜の位置でロックする移動機構90を設けた構成としている。
移動機構90は、ピストン91及びシリンダ92を有するとともにピストン91及びシリンダ92のいずれか一方が摺接板23に固定されいずれか他方が反力材38に当接しピストン92の進退動により摺接板23と反力材38とを相対移動させる複数の油圧駆動ジャッキ90aを備えて構成されている。また、移動機構90の油圧駆動ジャッキ90aは、シリンダ側が摺接板23の下側の端部に夫々設けられる移動機構用反力ブラケット93を介して、摺接板23に対して着脱自在に取り付けられている。この油圧駆動ジャッキ90aは、ピストン91が互いに向かい合うように十字に配置されている。
そして、図10に示すように、この4つの油圧駆動ジャッキ90aは、手動ポンプ95により、向かい合う油圧駆動ジャッキ90aと連動させられて、ピストン91が進退動させられる。手動ポンプ95は、互いに向かい合う油圧駆動ジャッキ90aのうち一方の油圧駆動ジャッキ90aのピストン91を進出させると他方の油圧駆動ジャッキ90aのピストンが後退させられ、一方の油圧駆動ジャッキ90aのピストン91を後退させると他方の油圧駆動ジャッキ90aのピストン91を進出させる。
As shown in FIGS. 1, 7, and 8, the bridge-side base member 20 is movably supported with respect to one member 31 or the other member 33 provided on the bridge-side base member 20, and the bridge-side base member 20 is supported. A moving mechanism 90 that is moved and locked at an appropriate position is provided.
The moving mechanism 90 includes a piston 91 and a cylinder 92, and either one of the piston 91 or the cylinder 92 is fixed to the sliding contact plate 23, and the other is in contact with the reaction force material 38, and the sliding contact plate is moved forward and backward by the piston 92. 23 and a plurality of hydraulic drive jacks 90a for moving the reaction force member 38 relative to each other. The hydraulic drive jack 90a of the moving mechanism 90 is detachably attached to the slidable contact plate 23 via a moving mechanism reaction force bracket 93 provided on the cylinder side at the lower end of the slidable contact plate 23, respectively. It has been. The hydraulic drive jack 90a is arranged in a cross so that the pistons 91 face each other.
Then, as shown in FIG. 10, the four hydraulic drive jacks 90a are interlocked with the opposing hydraulic drive jacks 90a by the manual pump 95, and the piston 91 is moved forward and backward. When the manual pump 95 advances the piston 91 of one hydraulic drive jack 90a among the hydraulic drive jacks 90a facing each other, the piston of the other hydraulic drive jack 90a is retracted, and the piston 91 of one hydraulic drive jack 90a is retracted. Then, the piston 91 of the other hydraulic drive jack 90a is advanced.

従って、図1乃至図3に示すように、この橋梁架設用回転装置Sを用いて橋脚1,2間に橋梁4を架設するには、まず、橋脚1,2の基礎3を線路の両側に打ち込み、クレーン等を用いて基礎3に夫々橋脚1,2を立設する。次に、この橋脚1,2のうち、一方の橋梁1の上部に、足場(図示せず)を設けるとともに、クレーン及び足場を用いて橋梁架設用回転装置Sを設置する。   Therefore, as shown in FIG. 1 to FIG. 3, in order to construct the bridge 4 between the piers 1 and 2 using this bridge construction rotating device S, first, the foundations 3 of the piers 1 and 2 are placed on both sides of the track. The piers 1 and 2 are erected on the foundation 3 by driving in and using a crane or the like. Next, a scaffold (not shown) is provided on the upper portion of one bridge 1 of the bridge piers 1 and 2, and a bridge erection rotating device S is installed using a crane and a scaffold.

この際、橋脚1の上部に、円筒体11の内部に受梁14を構築して橋脚側ベース部材10を設け、受梁14の中央に支持機構45及び軸機構30を取り付ける。また、橋脚側ベース部材10の外周に底部反力ブラケット57を橋脚側ベース部材10に取り付け、この橋脚側ベース部材10にガイドレール51を取り付ける。
次にまた、橋梁側ベース部材20の円筒状体22に、上部ブラケット61及び移動体60を取り付け、摺接板23に移動体60を取り付けた状態で、クレーンで橋梁側ベース部材20を吊下し、橋脚1の上部に設ける。
At this time, on the upper part of the bridge pier 1, the receiving beam 14 is constructed inside the cylindrical body 11 and the pier side base member 10 is provided, and the support mechanism 45 and the shaft mechanism 30 are attached to the center of the receiving beam 14. Further, the bottom reaction force bracket 57 is attached to the pier side base member 10 on the outer periphery of the pier side base member 10, and the guide rail 51 is attached to the pier side base member 10.
Next, the upper bracket 61 and the moving body 60 are attached to the cylindrical body 22 of the bridge-side base member 20, and the bridge-side base member 20 is suspended by a crane in a state where the moving body 60 is attached to the sliding contact plate 23. And provided at the top of the pier 1.

また、橋梁架設用回転装置Sを設けた一方の橋脚1に、橋梁4を構築していく。
この際、橋梁4は、予め設けたベント5に橋梁ブロック4aを支持させた状態で、溶接等により橋梁側ベース部材20の橋梁基部部材21及び隣り合う橋梁ブロック4aを接合していく。また、橋梁4側の重さに対してバランスをとるために、橋梁4の基端部側に設けた架台98上に所謂カウンタウェイト99と呼ばれるおもりを載置する。更に、他方の橋脚2の上部に、一方の橋脚1の上部に設けた橋梁4の回動後にこの橋梁4の先端部が係合し、橋梁4の一部となる別の橋梁基部部材9を設ける。
Further, the bridge 4 is constructed on one pier 1 provided with the bridge erection rotating device S.
At this time, the bridge 4 joins the bridge base member 21 of the bridge-side base member 20 and the adjacent bridge block 4a by welding or the like in a state where the bridge block 4a is supported by a vent 5 provided in advance. In order to balance the weight on the bridge 4 side, a so-called counterweight 99 is placed on a gantry 98 provided on the base end side of the bridge 4. Further, after the bridge 4 provided on the upper portion of the one pier 1 is rotated, the tip end portion of the bridge 4 is engaged with the upper portion of the other pier 2, and another bridge base member 9 that becomes a part of the bridge 4 is provided. Provide.

そして、橋梁4を回転する。この場合、回転に先立って、支持機構45及び傾動抑止機構50の調整を行なう。この調整について、図16に示すフローチャートに従って説明すると、以下のようになる。
まず、クランプ部81によりガイドレール51をクランプする(1−1)。クランプ部81のクランプが完了したならば(1−2)、制御部79により、支持機構45及び傾動抑止機構50の油圧駆動ジャッキに係る検知手段の油圧検知センサ75及びリニアエンコーダ76の検知に基づいて、油圧制御パネル78によりポンプ77からのオイルの油圧を制御し、支持機構45の油圧駆動ジャッキ及び移動体60の油圧駆動ジャッキのピストン46,71を進出し、橋梁側ベース部材20を橋脚側ベース部材10に対して浮上させていく(1−3)。
この際、制御部79は、支持機構45の油圧駆動ジャッキのシリンダ47の荷重を検知する油圧検知センサ75aの検知により、ピストン46から橋梁側ベース部材20側に加えられる力fが設定値Aになるように、油圧制御パネル78からのオイルを制御する。また、制御部79は、移動体60の油圧駆動ジャッキのシリンダ72の荷重を検知する油圧検知センサ75の検知により、ピストン71から橋梁側ベース部材20側に加えられる力fが設定値Bになるように、油圧制御パネル78からのオイルを制御する。
また、この際、リニアエンコーダ76,76aでピストン46,71の進出を検知できない等、支持機構45及び移動体60の油圧駆動ジャッキになんらかの異常があれば装置を停止する(1−4N、1−10)。
Then, the bridge 4 is rotated. In this case, the support mechanism 45 and the tilt suppression mechanism 50 are adjusted prior to the rotation. This adjustment will be described as follows according to the flowchart shown in FIG.
First, the guide rail 51 is clamped by the clamp part 81 (1-1). When the clamping of the clamp part 81 is completed (1-2), the control part 79 is based on the detection of the hydraulic pressure detection sensor 75 and the linear encoder 76 of the detection means related to the hydraulic drive jacks of the support mechanism 45 and the tilt suppression mechanism 50. Then, the hydraulic pressure of the oil from the pump 77 is controlled by the hydraulic control panel 78, the pistons 46 and 71 of the hydraulic drive jack of the support mechanism 45 and the hydraulic drive jack of the moving body 60 are advanced, and the bridge side base member 20 is moved to the pier side. It floats with respect to the base member 10 (1-3).
At this time, the control unit 79 detects that the force f 1 applied from the piston 46 to the bridge-side base member 20 side is the set value A by the detection of the hydraulic pressure detection sensor 75a that detects the load of the cylinder 47 of the hydraulic drive jack of the support mechanism 45. Then, the oil from the hydraulic control panel 78 is controlled. In addition, the control unit 79 detects that the force f 2 applied from the piston 71 to the bridge-side base member 20 side is set to the set value B by the detection of the oil pressure detection sensor 75 that detects the load of the cylinder 72 of the hydraulic drive jack of the moving body 60. Thus, the oil from the hydraulic control panel 78 is controlled.
At this time, if there is any abnormality in the hydraulic drive jacks of the support mechanism 45 and the moving body 60 such that the linear encoders 76 and 76a cannot detect the advance of the pistons 46 and 71, the apparatus is stopped (1-4N, 1- 10).

更に、これらの油圧駆動ジャッキのピストン46,71の進出により、橋梁4が、ベント5から離間して解放されたならば(1−5Y)、各油圧駆動ジャッキのシリンダの油圧が正常値にあるかどうかを油圧検知センサ75,75aにより検知し(1−6)、正常値とは異なる場合には、装置を停止する(1−6N,1−10)。
また、橋梁側ベース部材20が橋脚側ベース部材10に対する浮上が小さ過ぎるあるいは大き過ぎる場合等、各油圧駆動ジャッキの調整が必要な場合(1−7Y)、制御部79の設定値A,Bを変更したり、各油圧駆動ジャッキを夫々手動で調整したりする(1−8,1−9)。
Further, if the bridges 4 are released away from the vent 5 by the advancement of the pistons 46 and 71 of these hydraulic drive jacks (1-5Y), the hydraulic pressure of the cylinder of each hydraulic drive jack is at a normal value. Is detected by the oil pressure detection sensors 75 and 75a (1-6), and when it is different from the normal value, the apparatus is stopped (1-6N, 1-10).
Further, when adjustment of each hydraulic drive jack is required (1-7Y), such as when the bridge-side base member 20 is too small or too large with respect to the pier-side base member 10, the set values A and B of the control unit 79 are set. Change or manually adjust each hydraulic drive jack (1-8, 1-9).

次に、橋梁4を回転させる。図17に示すフローチャートに従って説明すると、橋梁4を回転させる準備が整ったら(2−1)、回転駆動機構80により、以下のようにして橋梁4の回転駆動を行なわせる。
回転駆動は、図18(a)に示すように、2つの回転駆動機構80のうちいずれか一方の回転駆動機構80(80a)のクランプ部81のみを作動させてガイドレール51をクランプし(2−2,2−3)、いずれか他方の回転駆動機構80(80b)のクランプ部81を非作動にしてガイドレール51のクランプを解除し、この状態で、一方の回転駆動機構80の油圧駆動ジャッキを駆動させてピストン84を後退させ(2−4,2−11N)、一方の回転駆動機構80のクランプ部81と、移動体60とを近接させていく。
Next, the bridge 4 is rotated. Referring to the flowchart shown in FIG. 17, when preparation for rotating the bridge 4 is completed (2-1), the rotational drive mechanism 80 drives the bridge 4 to rotate as follows.
In the rotational drive, as shown in FIG. 18A, only the clamp portion 81 of one of the two rotational drive mechanisms 80 (80a) is operated to clamp the guide rail 51 (2 -2, 2-3), the clamp part 81 of the other rotational drive mechanism 80 (80b) is deactivated, and the clamp of the guide rail 51 is released, and in this state, the hydraulic drive of one rotational drive mechanism 80 is performed. The jack is driven to retract the piston 84 (2-4, 2-11N), and the clamp portion 81 of the one rotational drive mechanism 80 and the moving body 60 are brought closer to each other.

次に、図18(b)に示すように、一方の回転駆動機構80(80a)の油圧駆動ジャッキのピストン84が限界まで後退したら(2−11Y)、一方の回転駆動機構80(80a)のクランプ部81を非作動にしてガイドレール51のクランプを解除し(2−12,2−13)、他方の回転駆動機構80(80b)のクランプ部81を作動させてガイドレール51をクランプし、この状態で、他方の回転駆動機構80(80b)の油圧駆動ジャッキを駆動させてピストン84を後退させ、他方の回転駆動機構80(80b)のクランプ部81と、移動体60とを近接させる一方、一方の回転駆動機構80(80a)の油圧駆動ジャッキのピストン82を元位置に復帰させてクランプ部81と移動体60とを相対的に離間させる(2−14,2−15)。   Next, as shown in FIG. 18B, when the piston 84 of the hydraulic drive jack of one rotational drive mechanism 80 (80a) is retracted to the limit (2-11Y), the rotational drive mechanism 80 (80a) The clamp part 81 is deactivated to release the clamp of the guide rail 51 (2-12, 2-13), the clamp part 81 of the other rotational drive mechanism 80 (80b) is operated to clamp the guide rail 51, In this state, the hydraulic drive jack of the other rotational drive mechanism 80 (80b) is driven to retract the piston 84, and the clamp part 81 of the other rotational drive mechanism 80 (80b) and the moving body 60 are brought close to each other. Then, the piston 82 of the hydraulic drive jack of one of the rotary drive mechanisms 80 (80a) is returned to the original position to relatively separate the clamp portion 81 and the moving body 60 (2-14, -15).

次にまた、図18(c)に示すように、他方の回転駆動機構80(80a)のクランプ部81を非作動にしてガイドレール51のクランプを解除し、一方の回転駆動機構80(80a)のクランプ部81を作動させてガイドレール51をクランプし、この状態で、一方の回転駆動機構80(80a)の油圧駆動ジャッキを駆動させ、一方の回転駆動機構80(80a)のクランプ部81と、移動体60とを近接させる一方、他方の回転駆動機構80(80b)の油圧駆動ジャッキのピストンを元位置に復帰させてクランプ部81と移動体60とを相対的に離間させる。
上記のように、一方及び他方の回転駆動機構80の油圧駆動ジャッキを交互に複数回、回転駆動し、橋梁側ベース部材20を、軸機構30の中心軸を中心に所望の角度分だけ回転させて(2−10)、回転駆動機構80を停止する。実施の形態においては、回転駆動機構80の油圧駆動ジャッキは、1回あたりの駆動により橋梁側ベース部材20を約9度回転させるように設計してあり、回転駆動機構80の油圧駆動ジャッキを交互にそれぞれ5回ずつ駆動し、計10かい駆動させて、90度回転した(図18(d))。
Next, as shown in FIG. 18C, the clamp portion 81 of the other rotation drive mechanism 80 (80a) is deactivated to release the clamp of the guide rail 51, and one rotation drive mechanism 80 (80a) is released. In this state, the hydraulic drive jack of one rotary drive mechanism 80 (80a) is driven, and the clamp part 81 of one rotary drive mechanism 80 (80a) While moving the moving body 60 close, the piston of the hydraulic drive jack of the other rotary drive mechanism 80 (80b) is returned to the original position, and the clamp part 81 and the moving body 60 are relatively separated.
As described above, the hydraulic drive jacks of the one and the other rotational drive mechanism 80 are alternately rotated a plurality of times, and the bridge-side base member 20 is rotated by a desired angle around the central axis of the shaft mechanism 30. (2-10), and the rotation drive mechanism 80 is stopped. In the embodiment, the hydraulic drive jack of the rotary drive mechanism 80 is designed to rotate the bridge-side base member 20 by about 9 degrees by driving once, and the hydraulic drive jack of the rotary drive mechanism 80 is alternately arranged. Were driven 5 times each, 10 times in total, and rotated 90 degrees (FIG. 18 (d)).

この際、軸機構30においては、一方部材31の半球体32が、半球体32の中心軸を軸に、他方部材33の凹部34に対して摺動した状態で回動する。この回動時に、橋梁側ベース部材20が傾動しようとすると、一方部材31は、これに追随して傾こうとするが、一方部材31の半球体32が凹半球状の凹部34で受けられているので、荷重の分散性が良く、橋梁側ベース部材20側からの荷重は、他方部材33の凹部34の略全面に亘って均一に受けることができる。これにより、橋梁側ベース部材20が傾動しようとしても、橋梁側ベース部材20の回転には殆ど影響がなく、そのまま橋梁側ベース部材20の回転を行なうことができるようになり、橋梁側ベース部材20の回転作業の作業効率を向上させることができる。   At this time, in the shaft mechanism 30, the hemispherical body 32 of the one member 31 rotates with the central axis of the hemispherical body 32 as an axis while sliding with respect to the concave portion 34 of the other member 33. When the bridge-side base member 20 tries to tilt during this rotation, the one member 31 tries to tilt following this, but the hemisphere 32 of the one member 31 is received by the concave hemispherical recess 34. Therefore, the dispersibility of the load is good, and the load from the bridge-side base member 20 side can be received uniformly over substantially the entire surface of the recess 34 of the other member 33. As a result, even if the bridge-side base member 20 is tilted, the rotation of the bridge-side base member 20 can be performed as it is with little influence on the rotation of the bridge-side base member 20, and the bridge-side base member 20 can be rotated as it is. The working efficiency of the rotating work can be improved.

また、この際、支持機構45のピストン46である他方部材33には、一方部材31の回転により生じた半球体32及び凹部34間に生じた摩擦により、凹部34の中心軸回りに回転力が生じ、他方部材33も支持機構45のシリンダ47に対して回動していく。そのため、軸機構30だけでなく、支持機構45のピストン46がシリンダ47に対して回転するので、より一層、橋梁側ベース部材20の回転を円滑に行なわせることができる。   At this time, the other member 33, which is the piston 46 of the support mechanism 45, receives a rotational force around the central axis of the recess 34 due to friction generated between the hemisphere 32 and the recess 34 generated by the rotation of the one member 31. As a result, the other member 33 also rotates with respect to the cylinder 47 of the support mechanism 45. Therefore, since not only the shaft mechanism 30 but also the piston 46 of the support mechanism 45 rotates with respect to the cylinder 47, the bridge-side base member 20 can be further smoothly rotated.

この回転駆動機構80による回転駆動中においては、傾動抑止機構50により橋梁側ベース部材20の橋脚側ベース部材10に対する傾動が抑止される(2−6)。この傾動は、例えば、ガイドレール51表面はある程度不均一で不陸があること等により生じる。
傾動抑止機構50は、制御部79により制御され、具体的には、例えば、図19に示すフローチャートに従って次に説明するように行なわれる。
制御部79は、例えば、ガイドレール51が僅かに凹になっていることにより上部ブラケット61の被押圧板63とガイドレール51間が離間する等し、油圧検知センサ75の検知によりf<B−βとなった場合には(3−1Y)、その油圧検知センサ75が設けられた管58を所定量増圧してシリンダ72内の油圧を所定量増圧し、力fを大きくしてピストン71を進出させる(3−2)。
また、例えば、ガイドレール51が僅かに凸になっていることにより上部ブラケット61の被押圧板63とガイドレール51間が近接する等し、油圧検知センサ75の検知によりB+β<fとなった場合には(3−1N,3−3Y)、その油圧検知センサ75が設けられた管58を所定量減圧してシリンダ72内の油圧を所定量減圧し、力fを小さくしてピストン71を後退させる(3−4)。
更に、移動体60の油圧駆動ジャッキのピストン71からの力fが、B−β≦f≦B+βであるとき(3−1N,3−3N)、シリンダ72内の油圧を維持する(3−5)。
During the rotation drive by the rotation drive mechanism 80, the tilt suppression mechanism 50 suppresses the tilt of the bridge side base member 20 relative to the pier side base member 10 (2-6). This tilting occurs, for example, when the surface of the guide rail 51 is uneven to some extent and uneven.
The tilt suppression mechanism 50 is controlled by the control unit 79, and specifically, for example, as described below according to the flowchart shown in FIG.
For example, when the guide rail 51 is slightly concave, the control unit 79 causes the pressed plate 63 of the upper bracket 61 and the guide rail 51 to be separated, and f 2 <B is detected by the hydraulic pressure detection sensor 75. when became -β is (3-1Y), pressure increase predetermined amount the hydraulic pressure in the cylinder 72 and the oil pressure sensor 75 tubes 58 provided by applying increased a predetermined amount, the piston to increase the force f 2 71 is advanced (3-2).
Further, for example, the guide rail 51 is slightly convex so that the pressed plate 63 of the upper bracket 61 and the guide rail 51 are close to each other, and B + β <f 2 is detected by the hydraulic pressure detection sensor 75. If (3-1N, 3-3Y), the hydraulic pressure detection sensor 75 tube 58 provided with a predetermined amount under reduced pressure to reduced pressure a predetermined amount of hydraulic pressure in the cylinder 72, the piston 71 and reduce the force f 2 (3-4).
Furthermore, the force f 2 from the hydraulic power jack piston 71 of the moving body 60, B-β ≦ f 2 ≦ B + when a β (3-1N, 3-3N), to maintain the hydraulic pressure in the cylinder 72 (3 -5).

また、上記の移動体60の油圧駆動ジャッキの制御によって、僅かに橋梁側ベース部材20が傾動するような場合等において、油圧検知センサ75aの検知によりf<A−αとなった場合には(3−6Y)、油圧検知センサ75aが設けられた管58aの油圧を所定量増圧してシリンダ47内の油圧を所定量増圧し、力fを大きくしてピストンを進出させる(3−7)。一方、油圧検知センサ75aの検知によりA+α<fであるときに(3−6N,3−8Y)、油圧検知センサ75aが設けられた管58aの油圧を所定量減圧してシリンダ47内の油圧を所定量減圧し、力fを小さくしてピストン46を後退させる(3−9)。そして、支持機構45の油圧駆動ジャッキのピストン46から加えられる力fが、A−α≦f≦A+αであるとき(3−6N,3−8N)、シリンダ47内の油圧を維持する(3−10)。
そして、この移動体60と支持機構45の制御を、力fがB−β≦f≦B+βに、力fがA−α≦f≦A+αに夫々なるように繰り返す(3−11)。
In addition, when the bridge-side base member 20 is slightly tilted by the control of the hydraulic drive jack of the moving body 60 described above, when f 1 <A−α is detected by the hydraulic pressure detection sensor 75a. (3-6Y), the hydraulic pressure of the hydraulic sensor 75a is provided tube 58a pressed up a predetermined amount pressure increase predetermined amount of hydraulic pressure in the cylinder 47, thereby advancing the piston by increasing the force f 1 (3-7 ). On the other hand, when A + α <f 1 is detected by the oil pressure detection sensor 75a (3-6N, 3-8Y), the oil pressure in the pipe 47a provided with the oil pressure detection sensor 75a is reduced by a predetermined amount to reduce the oil pressure in the cylinder 47. the predetermined amount reduced pressure and reduce the force f 1 retracts the piston 46 (3-9). When the force f 1 applied from the piston 46 of the hydraulic drive jack of the support mechanism 45 is A−α ≦ f 1 ≦ A + α (3-6N, 3-8N), the hydraulic pressure in the cylinder 47 is maintained ( 3-10).
Then, the control of the moving body 60 and the support mechanism 45 is repeated so that the force f 2 becomes B−β ≦ f 2 ≦ B + β and the force f 1 becomes A−α ≦ f 1 ≦ A + α (3-11). ).

即ち、橋梁側ベース部材20が橋脚側ベース部材10に対して傾動しようとすると、その都度、シリンダ47,75の油圧を増圧または減圧して、油圧駆動ジャッキのピストン71を進出または後退させ、各移動体60の油圧駆動ジャッキに略均等の荷重が係るようにして橋梁側ベース部材20の傾動を抑止するので、橋梁側ベース部材20は、橋脚側ベース部材10に対して安定した姿勢で支持される。そのため、橋梁側ベース部材20の回転を円滑に行なうことができ、橋梁側ベース部材20の回転作業の作業効率を向上させることができる。
また、支持機構45及び移動体60の油圧駆動ジャッキのピストン46,71の進出,後退は、回転中においても制御手段により自動で行なわれるので、傾動しようとする橋梁側ベース部材20に即座に対応でき、橋梁側ベース部材20を安定した状態で回転させることができ、回転作業の作業効率を向上させることができる。
That is, each time the bridge-side base member 20 is tilted with respect to the pier-side base member 10, the hydraulic pressure of the cylinders 47 and 75 is increased or decreased, and the piston 71 of the hydraulically driven jack is advanced or retracted. The bridge-side base member 20 is supported in a stable posture with respect to the pier-side base member 10 because the tilting of the bridge-side base member 20 is suppressed so that a substantially equal load is applied to the hydraulic drive jacks of the respective moving bodies 60. Is done. Therefore, the bridge side base member 20 can be smoothly rotated, and the work efficiency of the rotation work of the bridge side base member 20 can be improved.
Further, the advancement and retraction of the pistons 46 and 71 of the hydraulic drive jack of the support mechanism 45 and the moving body 60 are automatically performed by the control means even during rotation, so that the bridge side base member 20 to be tilted can be dealt with immediately. The bridge-side base member 20 can be rotated in a stable state, and the working efficiency of the rotating work can be improved.

また、この際、移動体60は、橋梁側ベース部材20をガイドレール51に支持した状態で、ガイドレール51に対して摺接体73が摺接して移動するので、簡単な構造で橋梁側ベース部材20を安定して支持しつつ回転させることができる。
更に、ガイドレール51は、橋脚側ベース部材10の外周に沿うように形成しているので、例えば、橋梁4の先端側を支持した状態で移動する台車等を用いる場合に比較して、あまり設置スペースをとることがなくなり、橋脚1,2間の既設の道路,線路,水路等に影響しにくくなり、これらの使用停止を短時間で終わらせることができる。
At this time, the moving body 60 moves while the sliding contact body 73 slides on the guide rail 51 in a state where the bridge side base member 20 is supported by the guide rail 51. The member 20 can be rotated while being stably supported.
Furthermore, since the guide rail 51 is formed along the outer periphery of the pier side base member 10, for example, the guide rail 51 is installed less than the case where a carriage that moves while supporting the tip end side of the bridge 4 is used. Space is not taken, and it becomes difficult to affect the existing roads, railways, waterways, etc. between the piers 1 and 2, and the suspension of use can be completed in a short time.

また、橋梁4の回転中においては、軸機構40,支持機構45,伸縮機構82の油圧駆動ジャッキ自体に不具合がある等、異常がある場合は装置を停止する(2−5N,2−8)。更に、移動体60の油圧駆動ジャッキが制御された際、隣り合う2つの移動体60の油圧駆動ジャッキのシリンダ72に同じ油圧をかけるようにしている関係上、まれに、2つの移動体60のうち、一方の油圧駆動ジャッキのピストン71の進出距離h1と他方の油圧駆動ジャッキのピストン71の進出距離h2とが極端に異なる場合が想定される。そして、|h1−h2|>γとなった場合には(2−7N)、装置を停止する。その後、手動で各油圧検知センサを調整し(2−8)、復旧後に上記と同様にして回転を再開する。   Further, during the rotation of the bridge 4, if there is an abnormality such as a malfunction in the hydraulic drive jack itself of the shaft mechanism 40, the support mechanism 45, and the telescopic mechanism 82, the apparatus is stopped (2-5N, 2-8). . In addition, when the hydraulic drive jacks of the moving bodies 60 are controlled, the same hydraulic pressure is applied to the cylinders 72 of the hydraulic drive jacks of the two adjacent mobile bodies 60. Of these, it is assumed that the advance distance h1 of the piston 71 of one hydraulic drive jack and the advance distance h2 of the piston 71 of the other hydraulic drive jack are extremely different. When | h1-h2 |> γ is satisfied (2-7N), the apparatus is stopped. Thereafter, each oil pressure detection sensor is manually adjusted (2-8), and the rotation is resumed in the same manner as described above after restoration.

次にまた、回動が終了した後は、図20に示すフローチャートに従って、回転した橋梁4の先端と他方の橋脚1の上部に設けた橋梁基部部材9とを係合してこれらを結合する。
この際、橋梁4の先端が、橋梁基部部材9に対してずれが生じ、これらをうまく係合できない場合には、橋梁4を、移動機構90により、回転軸に直交する平面方向の位置調整を行ない、また、支持機構45,移動体60により高さ位置の位置調整を行なう(4−1Y)。
Next, after the rotation is completed, according to the flowchart shown in FIG. 20, the tip of the rotated bridge 4 and the bridge base member 9 provided on the upper portion of the other pier 1 are engaged to couple them.
At this time, if the tip of the bridge 4 is displaced with respect to the bridge base member 9 and cannot be engaged well, the position of the bridge 4 in the plane direction perpendicular to the rotation axis is adjusted by the moving mechanism 90. In addition, the height position is adjusted by the support mechanism 45 and the moving body 60 (4-1Y).

回転軸に直交する平面方向の位置調整を行なう場合には、反力材38と摺接板23とを結合するボルト及びナットを取り外し、手動ポンプ95を操作し移動機構90の油圧駆動ジャッキ90aのピストン91により反力材38を押圧し、摺接板23を反力材38に対して摺動させて、摺接板23の反力材38による支持位置を移動させる(4−2)。そのため、回転軸に直交する平面方向において、橋梁側ベース部材20を軸機構30に支持した状態で、ピストン91の進出分だけ一方部材31に対し橋梁側ベース部材20を移動できる。これにより、回転軸に直交する平面方向に位置調整でき、橋梁4の先端と橋梁基部部材21とを係合することができるようになり、橋梁4を2つの橋脚1に対して安定して架設させることができる。
また、高さ位置を調整する場合には、支持機構45の油圧駆動ジャッキのシリンダ47及び移動体60の油圧駆動ジャッキのシリンダ72を増圧または減圧し、ピストン46,71を進出もしくは後退させる(4−3)。
このような位置調整平面方向の位置調整,高さ位置調整を橋梁4の先端の橋梁基部部材9に対してずれがなくなるまで繰り返す(4−4N)。
When adjusting the position in the plane direction orthogonal to the rotation axis, the bolts and nuts connecting the reaction force member 38 and the sliding contact plate 23 are removed, and the manual pump 95 is operated to adjust the hydraulic drive jack 90a of the moving mechanism 90. The reaction force member 38 is pressed by the piston 91, the sliding contact plate 23 is slid with respect to the reaction force member 38, and the support position of the sliding contact plate 23 by the reaction force member 38 is moved (4-2). Therefore, the bridge-side base member 20 can be moved relative to the one member 31 by the advancement of the piston 91 in a state in which the bridge-side base member 20 is supported by the shaft mechanism 30 in the plane direction orthogonal to the rotation axis. As a result, the position of the bridge 4 can be adjusted in the plane direction orthogonal to the rotation axis, the tip of the bridge 4 and the bridge base member 21 can be engaged, and the bridge 4 can be stably installed on the two piers 1. Can be made.
When the height position is adjusted, the cylinder 47 of the hydraulic drive jack of the support mechanism 45 and the cylinder 72 of the hydraulic drive jack of the moving body 60 are increased or reduced, and the pistons 46 and 71 are advanced or retracted ( 4-3).
Such position adjustment in the position adjustment plane direction and height position adjustment are repeated until there is no deviation with respect to the bridge base member 9 at the end of the bridge 4 (4-4N).

位置調整が必要ない場合(4−1N)あるいは位置調整を終えた後(4−4Y)は、橋梁4の先端と橋梁基部部材9との係合を行なう(4−5)。この係合は、橋梁4の先端及び橋梁基部部材9付近に足場(図示せず)を設けて、人手で行なう。
次に、支持機構45の油圧駆動ジャッキのシリンダ47及び移動体60の油圧駆動ジャッキのシリンダ72の油圧を所定量ずつ減圧し、ピストン46,71を後退させていく(4−6)。この際、これらの油圧駆動ジャッキに異常があった場合には、シリンダ47,72の減圧を停止し(4−8)、油圧駆動ジャッキを手動で調整する(4−9)。そして、軸機構30及び支持機構45,移動体60の橋梁側ベース部材20の支持を解除する(4−10)。そして、橋脚側ベース部材10の円筒体11と橋梁側ベース部材20の円筒状体22とを溶接などにより互いに接合する。
When the position adjustment is not necessary (4-1N) or after the position adjustment is completed (4-4Y), the front end of the bridge 4 and the bridge base member 9 are engaged (4-5). This engagement is performed manually by providing a scaffold (not shown) near the tip of the bridge 4 and the bridge base member 9.
Next, the hydraulic pressures of the cylinder 47 of the hydraulic drive jack of the support mechanism 45 and the cylinder 72 of the hydraulic drive jack of the moving body 60 are reduced by a predetermined amount, and the pistons 46 and 71 are moved backward (4-6). At this time, if these hydraulic drive jacks are abnormal, the decompression of the cylinders 47 and 72 is stopped (4-8), and the hydraulic drive jacks are adjusted manually (4-9). Then, the support of the bridge-side base member 20 of the shaft mechanism 30, the support mechanism 45, and the moving body 60 is released (4-10). Then, the cylindrical body 11 of the pier side base member 10 and the cylindrical body 22 of the bridge side base member 20 are joined to each other by welding or the like.

次にまた、図1及び図21に示すように、移動機構90,軸機構30及び支持機構45を橋脚側ベース部材10,橋梁側ベース部材20から取り外し、橋梁側ベース部材20の円筒状体22の上部側の孔からこれらを取出す。この際、支持機構45の油圧駆動ジャッキのピストン42である他方部材33は後退させられ、反力材38と摺接板23の間に隙間を生じさせる。次に、移動機構90の油圧駆動ジャッキ,移動機構用反力ブラケット93,反力材38、軸機構30及び支持機構45を順に取り外す。また、傾動抑止機構50を、橋脚側ベース部材10及び橋梁側ベース部材20から取り外す。
そして、橋脚1,橋脚側ベース部材10の円筒体11及び橋梁側ベース部材20の円筒状体22の内部にコンクリートを充填する。
そして、図2に示すように、このように構築された橋脚1,2及び橋脚1,2間に架設された橋梁4を、同様にして複数設置し、これらの橋梁4の上に、車両等が通過可能な橋梁本体6を架設して高架橋を構築する。
Next, as shown in FIGS. 1 and 21, the moving mechanism 90, the shaft mechanism 30, and the support mechanism 45 are removed from the pier side base member 10 and the bridge side base member 20, and the cylindrical body 22 of the bridge side base member 20 is removed. Take these out from the top hole. At this time, the other member 33, which is the piston 42 of the hydraulic drive jack of the support mechanism 45, is retracted to create a gap between the reaction force member 38 and the sliding contact plate 23. Next, the hydraulic drive jack of the moving mechanism 90, the moving mechanism reaction force bracket 93, the reaction force member 38, the shaft mechanism 30, and the support mechanism 45 are sequentially removed. Further, the tilt suppression mechanism 50 is removed from the pier side base member 10 and the bridge side base member 20.
Then, concrete is filled into the inside of the cylindrical body 11 of the pier 1 and the pier side base member 10 and the cylindrical body 22 of the bridge side base member 20.
Then, as shown in FIG. 2, the piers 1 and 2 constructed in this way and a plurality of bridges 4 constructed between the piers 1 and 2 are installed in the same manner. The bridge main body 6 that can pass through is constructed to construct a viaduct.

尚、本発明の実施の形態においては、回転駆動機構80を2個設けたがこれに限定されるものでなく、1個であっても3個以上あってもよい。
尚また、本発明の実施の形態においては、移動体60を6個設けたがこれに限定されるものでなく、3個以上であれば何個設けてもよい。
また、本発明の実施の形態においては、設定値Aと、設定値Bの関係がA:6×B=80〜90:10〜20となるように設定したが、これに限定されるものでなく、例えば、A:6×B=0:100であってもよく、設定変更してよい。
In the embodiment of the present invention, two rotation drive mechanisms 80 are provided, but the present invention is not limited to this, and there may be one or three or more.
In the embodiment of the present invention, six moving bodies 60 are provided. However, the present invention is not limited to this, and any number of three or more moving bodies 60 may be provided.
In the embodiment of the present invention, the relationship between the setting value A and the setting value B is set to A: 6 × B = 80 to 90:10 to 20, but the present invention is not limited to this. For example, A: 6 × B = 0: 100 may be used, and the setting may be changed.

尚、本発明の実施の形態においては、橋梁架設用回転装置Sを、橋梁4の上に橋梁本体を架設して高架橋を構築する場合について説明したが、これに限定されるものでなく、橋梁4自体が人や車両が通行する道路,線路となる橋梁本体となるものに用いても良い。
尚また、上記実施の形態においては、橋脚側ベース部材10に円筒体11を備えて構成し、橋梁側ベース部材20に円筒状体22を備えて構成したが、これらの形状を円筒形状に限るものでなく、筒状であれば他の形状であってもよく、例えば、断面が、三角形,四角形等の多角形の筒状に形成したものに適宜設計変更して差支えない。
また、橋脚1,橋梁4,橋脚側ベース部材10や橋梁側ベース部材20等は、金属で形成したがこれに限定されるものでなく、例えば、鋼材,鉄筋コンクリート,プレストレストコンクリート等どのようなものでよく、適宜設計変更して差支えない。
In the embodiment of the present invention, the bridge laying rotation device S has been described for the case where a bridge body is constructed on the bridge 4 to construct a viaduct. However, the present invention is not limited to this. 4 itself may be used for a road or a bridge body serving as a railroad where people and vehicles pass.
In the above embodiment, the pier side base member 10 includes the cylindrical body 11 and the bridge side base member 20 includes the cylindrical body 22. However, these shapes are limited to the cylindrical shape. The shape may be other shapes as long as it is cylindrical, and for example, the cross-section may be appropriately changed to a polygonal shape such as a triangle or a quadrangle.
Further, the pier 1, the bridge 4, the pier side base member 10, the bridge side base member 20 and the like are made of metal, but are not limited to this, for example, steel materials, reinforced concrete, prestressed concrete, etc. Of course, the design can be changed as appropriate.

本発明の実施の形態に係る橋梁架設用回転装置を示す縦断面図である。It is a longitudinal cross-sectional view which shows the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置を、橋脚及び橋梁間に取り付けた状態で示す斜視図である。It is a perspective view which shows the rotation apparatus for bridge construction which concerns on embodiment of this invention in the state attached to the bridge pier and the bridge. 本発明の実施の形態に係る橋梁架設用回転装置を、橋脚及び橋梁間に取り付けた状態で示す側面図である。It is a side view which shows the rotation apparatus for bridge construction which concerns on embodiment of this invention in the state attached to the bridge pier and the bridge. 本発明の実施の形態に係る橋梁架設用回転装置の橋梁側ベース部材を示す図である。It is a figure which shows the bridge side base member of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置の橋梁側ベース部材を示す図である。It is a figure which shows the bridge side base member of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置であって、橋梁側ベース部材の摺接板の取付状態を示す斜視図である。FIG. 6 is a perspective view showing a bridge laying rotation device according to an embodiment of the present invention, showing a state in which a sliding plate of a bridge-side base member is attached. 本発明の実施の形態に係る橋梁架設用回転装置を示す横断面図である。It is a cross-sectional view showing a bridge laying rotation device according to an embodiment of the present invention. 本発明の実施の形態に係る橋梁架設用回転装置であって、軸機構,支持機構及び移動機構を示す要部拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part showing a shaft mechanism, a support mechanism, and a moving mechanism, which is a rotating device for bridge construction according to an embodiment of the present invention. 本発明の実施の形態に係る橋梁架設用回転装置の上部ブラケットの取付状態を示す平面図である。It is a top view which shows the attachment state of the upper bracket of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置の傾動抑止機構を示す要部拡大図である。It is a principal part enlarged view which shows the tilt suppression mechanism of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置の傾動抑止機構を示す要部拡大図である。It is a principal part enlarged view which shows the tilt suppression mechanism of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置の傾動抑止機構であって、移動体を断面にして示す図である。It is a tilting suppression mechanism of the rotating device for bridge construction according to the embodiment of the present invention, and is a view showing a moving body in cross section. 本発明の実施の形態に係る橋梁架設用回転装置の回転駆動機構示す図である。It is a figure which shows the rotational drive mechanism of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置の支持機構及び傾動抑止機構のシステム図である。It is a system diagram of a support mechanism and a tilt suppression mechanism of a bridge laying rotation device according to an embodiment of the present invention. 本発明の実施の形態に係る橋梁架設用回転装置の移動機構のシステム図である。It is a system diagram of the moving mechanism of the rotating device for bridge construction according to the embodiment of the present invention. 本発明の実施の形態に係る橋梁架設用回転装置のフローチャート図である。It is a flowchart figure of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置のフローチャート図である。It is a flowchart figure of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置による橋梁側ベース部材の回転状態を示す図である。It is a figure which shows the rotation state of the bridge side base member by the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置の傾動抑止機構の制御に関するフローチャート図である。It is a flowchart figure regarding control of the tilting suppression mechanism of the rotation device for bridge construction concerning an embodiment of the invention. 本発明の実施の形態に係る橋梁架設用回転装置のフローチャート図である。It is a flowchart figure of the rotation apparatus for bridge construction which concerns on embodiment of this invention. 本発明の実施の形態に係る橋梁架設用回転装置を、その一部取り外した状態で示す図である。It is a figure which shows the rotation apparatus for bridge construction which concerns on embodiment of this invention in the state which removed the part. 従来の橋梁架設用回転装置の一例を示す図である。It is a figure which shows an example of the conventional rotating device for bridge construction. 従来の橋梁架設用回転装置の一例を要部を拡大して示す図である。It is a figure which expands and shows an example of the example of the conventional rotating device for bridge construction.

符号の説明Explanation of symbols

S 橋梁架設用回転装置
1,2 橋脚
4 橋梁
10 橋脚側ベース部材
20 橋梁側ベース部材
23 摺接板
30 軸機構
31 一方部材
32 半球体
33 他方部材
34 凹部
36 貫通孔
38 反力材
43 ロッド
45 支持機構
46 ピストン
47 シリンダ
50 傾動抑止機構
51 ガイドレール
60 移動体
71 ピストン
72 シリンダ
73 摺接体
80 回転駆動機構
81 クランプ部
82 伸縮機構
90 移動機構
91 ピストン
92 シリンダ
DESCRIPTION OF SYMBOLS S Rotating device for bridge construction 1, 2, bridge pier 4 bridge 10 bridge pier side base member 20 bridge side base member 23 sliding contact plate 30 shaft mechanism 31 one member 32 hemisphere 33 other member 34 recess 36 through hole 38 reaction force member 43 rod 45 Support mechanism 46 Piston 47 Cylinder 50 Tilt prevention mechanism 51 Guide rail 60 Moving body 71 Piston 72 Cylinder 73 Sliding contact body 80 Rotation drive mechanism 81 Clamp part 82 Telescopic mechanism 90 Moving mechanism 91 Piston 92 Cylinder

Claims (25)

橋脚間に橋梁を架設する際、橋梁を橋脚に対して回転可能に支持し、回転により上記橋梁を架設する橋梁架設用回転装置であって、
上記橋脚側に設けられる橋脚側ベース部材と、上記橋梁側に設けられる橋梁側ベース部材と、上記ベース部材間に設けられ上記橋梁側ベース部材を上記橋脚側ベース部材に対して回転可能にする軸機構と、該軸機構による橋梁側ベース部材の回転の際該橋梁側ベース部材の傾動を抑止する傾動抑止機構とを備えた橋梁架設用回転装置において、
上記軸機構を、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか一方側に設けられ端部が略半球状の半球体に形成された一方部材と、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか他方側に設けられ端部が上記半球体を摺接可能に受ける半球状の凹部に形成された他方部材とを備えて構成し、
上記一方部材の半球体の中央に当該半球体の中心軸に沿い該半球体の表面に向けて拡開するロート状の貫通孔を設け、上記他方部材の凹部の中央に当該凹部の中心軸に沿い上記貫通孔に遊挿されるロッドを設けたことを特徴とする橋梁架設用回転装置。
When installing a bridge between bridge piers, a bridge installation rotation device that supports the bridge rotatably with respect to the pier and lays the bridge by rotation,
A pier side base member provided on the pier side, a bridge side base member provided on the bridge side, and an axis provided between the base members and capable of rotating the bridge side base member with respect to the pier side base member A rotation device for erection of a bridge comprising a mechanism and a tilt suppression mechanism that suppresses tilting of the bridge-side base member when the bridge-side base member is rotated by the shaft mechanism;
The shaft mechanism is provided on one side of the pier-side base member and the bridge-side base member, with one end formed in a substantially hemispherical hemisphere, and the pier-side base member and the bridge-side base member. And the other member formed on a hemispherical concave portion that is provided on the other side and receives the hemisphere so as to be slidable ,
A funnel-shaped through-hole is provided at the center of the hemisphere of the one member along the central axis of the hemisphere to expand toward the surface of the hemisphere, and the central axis of the recess is formed at the center of the recess of the other member. A rotating device for bridge erection, comprising a rod loosely inserted into the through hole.
上記一方部材及び他方部材の少なくともいずれか一方を上下移動可能に支持する支持機構を設けたことを特徴とする請求項1記載の橋梁架設用回転装置。2. The bridge erection rotating device according to claim 1, further comprising a support mechanism that supports at least one of the one member and the other member so as to be vertically movable. 上記支持機構を、ピストン及びシリンダからなる油圧駆動ジャッキで構成し、上記ピストンを上記一方部材及び他方部材の少なくともいずれか一方自体で構成したことを特徴とする請求項2記載の橋梁架設用回転装置。3. The bridge erection rotating device according to claim 2, wherein the support mechanism is constituted by a hydraulic drive jack composed of a piston and a cylinder, and the piston is constituted by at least one of the one member and the other member itself. . 上記傾動抑止機構を、上記橋脚側ベース部材の外周に沿って設けられるガイドレールと、上記橋梁側ベース部材に該橋梁側ベース部材の回転軸を中心にした円周上等間隔にかつ上記ガイドレール上を移動可能に複数設けられ上記橋梁側ベース部材を上記ガイドレールに対して支持する移動体とを備えて構成したことを特徴とする請求項1,2または3記載の橋梁架設用回転装置。The tilt-inhibiting mechanism includes a guide rail provided along the outer periphery of the pier side base member, and the guide rail on the bridge side base member at equal intervals on the circumference around the rotation axis of the bridge side base member. 4. The bridge erection rotating device according to claim 1, further comprising a plurality of movable bodies provided so as to be movable on the upper side and supporting the bridge side base member with respect to the guide rail. 上記ガイドレールの上面を平面に形成し、上記移動体を上記ガイドレールの上面を摺接する平面を有した摺接体を備えて構成したことを特徴とする請求項4記載の橋梁架設用回転装置。The bridge laying rotation device according to claim 4, wherein the guide rail has a flat upper surface, and the movable body includes a sliding contact body having a flat surface that slides on the upper surface of the guide rail. . 上記移動体をピストン及びシリンダからなる油圧駆動ジャッキで構成したことを特徴とする請求項4または5記載の橋梁架設用回転装置。6. The bridge laying rotation device according to claim 4, wherein the movable body is constituted by a hydraulic drive jack including a piston and a cylinder. 上記ピストンの進出距離を検知する検知手段と、該検知手段の検知に基づいて上記油圧駆動ジャッキのシリンダの油圧を制御する制御手段とを設けたことを特徴とする請求項6記載の橋梁架設用回転装置。7. The bridge laying structure according to claim 6, further comprising detection means for detecting an advancing distance of the piston and control means for controlling the hydraulic pressure of a cylinder of the hydraulic drive jack based on detection of the detection means. Rotating device. 上記橋梁側ベース部材を回転する回転駆動機構を設け、A rotation drive mechanism for rotating the bridge side base member is provided,
上記回転駆動機構を、上記ガイドレールに着脱自在に取り付け可能なクランプ部と、該クランプ部に一端が回動可能に連結され他端が上記移動体に回動可能に連結され、上記クランプ部のクランプ時に伸長若しくは縮小して上記移動体を移動させ、上記クランプ部のクランプ解除時に元位置に復帰する伸縮機構とを備えて構成したことを特徴とする請求項4,5,6または7記載の橋梁架設用回転装置。A clamp part that can be detachably attached to the guide rail, the rotation drive mechanism is connected to the clamp part so that one end thereof is pivotable, and the other end is pivotally connected to the movable body. 8. The telescopic mechanism according to claim 4, further comprising: an expansion / contraction mechanism that extends or contracts during clamping to move the movable body and returns to its original position when the clamp is released from the clamp. Rotating device for bridge construction.
上記伸縮機構をピストン及びシリンダからなる油圧駆動ジャッキで構成したことを特徴とする請求項8記載の橋梁架設用回転装置。9. The rotating device for bridge construction according to claim 8, wherein the expansion / contraction mechanism is constituted by a hydraulic drive jack including a piston and a cylinder. 上記橋梁側ベース部材に設けられる上記一方部材または上記他方部材に対し上記橋梁側ベース部材を移動可能に支持し、上記橋梁側ベース部材を移動させ適宜の位置でロックする移動機構を設けたことを特徴とする請求項1,2,3,4,5,6,7,8または9記載の橋梁架設用回転装置。Provided with a moving mechanism that supports the bridge side base member movably with respect to the one member or the other member provided on the bridge side base member, and moves the bridge side base member to lock it at an appropriate position. 10. The bridge erection rotating device according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9. 上記橋梁側ベース部材の下側に摺接板を設け、A sliding contact plate is provided below the bridge side base member,
上記橋梁側ベース部材側の一方部材または他方部材の上側に上記摺接板に摺接する反力材を設け、A reaction force material slidably contacting the slidable contact plate is provided on the upper side of the one member or the other member on the bridge side base member side,
上記移動機構を、ピストン及びシリンダを有するとともにピストン及びシリンダのいずれか一方が上記摺接板に固定されいずれか他方が上記反力材に当接しピストンの進退動により上記摺接板と反力材とを相対移動させる複数の油圧駆動ジャッキを備えて構成したことを特徴とする請求項10記載の橋梁架設用回転装置。The moving mechanism includes a piston and a cylinder, and one of the piston and the cylinder is fixed to the sliding contact plate, and the other is in contact with the reaction force material, and the sliding contact plate and the reaction force material are moved forward and backward by the piston. The rotating device for bridge construction according to claim 10, comprising a plurality of hydraulically driven jacks that move relative to each other.
橋脚間に橋梁を架設する際、橋梁を橋脚に対して回転可能に支持し、回転により上記橋梁を架設する橋梁架設用回転装置であって、When installing a bridge between bridge piers, a bridge installation rotation device that supports the bridge rotatably with respect to the pier and lays the bridge by rotation,
上記橋脚側に設けられる橋脚側ベース部材と、上記橋梁側に設けられる橋梁側ベース部材と、上記ベース部材間に設けられ上記橋梁側ベース部材を上記橋脚側ベース部材に対して回転可能にする軸機構と、該軸機構による橋梁側ベース部材の回転の際該橋梁側ベース部材の傾動を抑止する傾動抑止機構とを備えた橋梁架設用回転装置において、A pier side base member provided on the pier side, a bridge side base member provided on the bridge side, and an axis provided between the base members and capable of rotating the bridge side base member with respect to the pier side base member A rotation device for erection of a bridge comprising a mechanism and a tilt suppression mechanism that suppresses tilting of the bridge-side base member when the bridge-side base member is rotated by the shaft mechanism;
上記軸機構を、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか一方側に設けられ端部が略半球状の半球体に形成された一方部材と、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか他方側に設けられ端部が上記半球体を摺接可能に受ける半球状の凹部に形成された他方部材とを備えて構成し、The shaft mechanism is provided on one side of the pier-side base member and the bridge-side base member, with one end formed in a substantially hemispherical hemisphere, and the pier-side base member and the bridge-side base member. And the other member formed on a hemispherical concave portion that is provided on the other side and receives the hemisphere so as to be slidable,
上記傾動抑止機構を、上記橋脚側ベース部材の外周に沿って設けられるガイドレールと、上記橋梁側ベース部材に該橋梁側ベース部材の回転軸を中心にした円周上等間隔にかつ上記ガイドレール上を移動可能に複数設けられ上記橋梁側ベース部材を上記ガイドレールに対して支持する移動体とを備えて構成したことを特徴とする橋梁架設用回転装置。The tilt-inhibiting mechanism includes a guide rail provided along the outer periphery of the pier side base member, and the guide rail on the bridge side base member at equal intervals on the circumference around the rotation axis of the bridge side base member. A rotating device for bridge erection, comprising a plurality of movable bodies that are movable on the top and that support the bridge-side base member with respect to the guide rail.
上記一方部材及び他方部材の少なくともいずれか一方を上下移動可能に支持する支持機構を設けたことを特徴とする請求項12記載の橋梁架設用回転装置。13. The bridge erection rotating device according to claim 12, further comprising a support mechanism that supports at least one of the one member and the other member so as to be vertically movable. 上記支持機構を、ピストン及びシリンダからなる油圧駆動ジャッキで構成し、上記ピストンを上記一方部材及び他方部材の少なくともいずれか一方自体で構成したことを特徴とする請求項13記載の橋梁架設用回転装置。14. The rotation device for bridge construction according to claim 13, wherein the support mechanism is constituted by a hydraulic drive jack comprising a piston and a cylinder, and the piston is constituted by at least one of the one member and the other member. . 上記ガイドレールの上面を平面に形成し、上記移動体を上記ガイドレールの上面を摺接する平面を有した摺接体を備えて構成したことを特徴とする請求項12,13または14記載の橋梁架設用回転装置。15. The bridge according to claim 12, 13 or 14, wherein an upper surface of the guide rail is formed in a flat surface, and the movable body is provided with a sliding contact body having a flat surface for sliding contact with the upper surface of the guide rail. Rotating device for erection. 上記移動体をピストン及びシリンダからなる油圧駆動ジャッキで構成したことを特徴とする請求項12,13,14または15記載の橋梁架設用回転装置。16. The bridge laying rotation device according to claim 12, 13, 14 or 15, wherein the movable body is constituted by a hydraulic drive jack comprising a piston and a cylinder. 上記ピストンの進出距離を検知する検知手段と、該検知手段の検知に基づいて上記油圧駆動ジャッキのシリンダの油圧を制御する制御手段とを設けたことを特徴とする請求項16記載の橋梁架設用回転装置。17. The bridge erection structure according to claim 16, further comprising: a detection unit that detects an advancing distance of the piston; and a control unit that controls a hydraulic pressure of a cylinder of the hydraulic drive jack based on the detection by the detection unit. Rotating device. 上記橋梁側ベース部材を回転する回転駆動機構を設け、A rotation drive mechanism for rotating the bridge side base member is provided,
上記回転駆動機構を、上記ガイドレールに着脱自在に取り付け可能なクランプ部と、該クランプ部に一端が回動可能に連結され他端が上記移動体に回動可能に連結され、上記クランプ部のクランプ時に伸長若しくは縮小して上記移動体を移動させ、上記クランプ部のクランプ解除時に元位置に復帰する伸縮機構とを備えて構成したことを特徴とする請求項12,13,14,15,16または17記載の橋梁架設用回転装置。A clamp part that can be detachably attached to the guide rail, the rotation drive mechanism is connected to the clamp part so that one end thereof is pivotable, and the other end is pivotally connected to the movable body. 17. An expansion / contraction mechanism that extends or contracts at the time of clamping to move the movable body and returns to the original position when the clamp part is released from the clamp is provided. Or the rotation apparatus for bridge construction of 17.
上記伸縮機構をピストン及びシリンダからなる油圧駆動ジャッキで構成したことを特徴とする請求項18記載の橋梁架設用回転装置。19. The rotation device for bridge construction according to claim 18, wherein the expansion / contraction mechanism comprises a hydraulic drive jack comprising a piston and a cylinder. 上記橋梁側ベース部材に設けられる上記一方部材または上記他方部材に対し上記橋梁側ベース部材を移動可能に支持し、上記橋梁側ベース部材を移動させ適宜の位置でロックする移動機構を設けたことを特徴とする請求項12,13,14,15,16,17,18または19記載の橋梁架設用回転装置。Provided with a moving mechanism that supports the bridge side base member movably with respect to the one member or the other member provided on the bridge side base member, and moves the bridge side base member to lock it at an appropriate position. 20. The rotating device for bridge construction according to claim 12, 13, 14, 15, 16, 17, 18 or 19. 上記橋梁側ベース部材の下側に摺接板を設け、A sliding contact plate is provided below the bridge side base member,
上記橋梁側ベース部材側の一方部材または他方部材の上側に上記摺接板に摺接する反力材を設け、A reaction force material slidably contacting the slidable contact plate is provided on the upper side of the one member or the other member on the bridge side base member side,
上記移動機構を、ピストン及びシリンダを有するとともにピストン及びシリンダのいずれか一方が上記摺接板に固定されいずれか他方が上記反力材に当接しピストンの進退動により上記摺接板と反力材とを相対移動させる複数の油圧駆動ジャッキを備えて構成したことを特徴とする請求項20記載の橋梁架設用回転装置。The moving mechanism includes a piston and a cylinder, and one of the piston and the cylinder is fixed to the sliding contact plate, and the other is in contact with the reaction force material, and the sliding contact plate and the reaction force material are moved forward and backward by the piston. 21. The rotating device for bridge construction according to claim 20, comprising a plurality of hydraulically driven jacks that move relative to each other.
橋脚間に橋梁を架設する際、橋梁を橋脚に対して回転可能に支持し、回転により上記橋梁を架設する橋梁架設用回転装置であって、When installing a bridge between bridge piers, a bridge installation rotation device that supports the bridge rotatably with respect to the pier and lays the bridge by rotation,
上記橋脚側に設けられる橋脚側ベース部材と、上記橋梁側に設けられる橋梁側ベース部材と、上記ベース部材間に設けられ上記橋梁側ベース部材を上記橋脚側ベース部材に対して回転可能にする軸機構と、該軸機構による橋梁側ベース部材の回転の際該橋梁側ベース部材の傾動を抑止する傾動抑止機構とを備えた橋梁架設用回転装置において、A pier side base member provided on the pier side, a bridge side base member provided on the bridge side, and an axis provided between the base members and capable of rotating the bridge side base member with respect to the pier side base member A rotation device for erection of a bridge comprising a mechanism and a tilt suppression mechanism that suppresses tilting of the bridge-side base member when the bridge-side base member is rotated by the shaft mechanism;
上記軸機構を、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか一方側に設けられ端部が略半球状の半球体に形成された一方部材と、上記橋脚側ベース部材及び橋梁側ベース部材のいずれか他方側に設けられ端部が上記半球体を摺接可能に受ける半球状の凹部に形成された他方部材とを備えて構成し、The shaft mechanism is provided on one side of the pier-side base member and the bridge-side base member, with one end formed in a substantially hemispherical hemisphere, and the pier-side base member and the bridge-side base member. And the other member formed on a hemispherical concave portion that is provided on the other side and receives the hemisphere so as to be slidable,
上記橋梁側ベース部材に設けられる上記一方部材または上記他方部材に対し上記橋梁側ベース部材を移動可能に支持し、上記橋梁側ベース部材を移動させ適宜の位置でロックする移動機構を設けたことを特徴とする橋梁架設用回転装置。Provided with a moving mechanism that supports the bridge side base member movably with respect to the one member or the other member provided on the bridge side base member, and moves the bridge side base member to lock it at an appropriate position. A rotating device for bridge construction.
上記一方部材及び他方部材の少なくともいずれか一方を上下移動可能に支持する支持機構を設けたことを特徴とする請求項22記載の橋梁架設用回転装置。23. The bridge erection rotating device according to claim 22, further comprising a support mechanism that supports at least one of the one member and the other member so as to be vertically movable. 上記支持機構を、ピストン及びシリンダからなる油圧駆動ジャッキで構成し、上記ピストンを上記一方部材及び他方部材の少なくともいずれか一方自体で構成したことを特徴とする請求項23記載の橋梁架設用回転装置。24. The rotation device for bridge construction according to claim 23, wherein the support mechanism is constituted by a hydraulic drive jack including a piston and a cylinder, and the piston is constituted by at least one of the one member and the other member itself. . 上記橋梁側ベース部材の下側に摺接板を設け、A sliding contact plate is provided below the bridge side base member,
上記橋梁側ベース部材側の一方部材または他方部材の上側に上記摺接板に摺接する反力材を設け、A reaction force material slidably contacting the slidable contact plate is provided on the upper side of the one member or the other member on the bridge side base member side,
上記移動機構を、ピストン及びシリンダを有するとともにピストン及びシリンダのいずれか一方が上記摺接板に固定されいずれか他方が上記反力材に当接しピストンの進退動により上記摺接板と反力材とを相対移動させる複数の油圧駆動ジャッキを備えて構成したことを特徴とする請求項22,23または24記載の橋梁架設用回転装置。The moving mechanism includes a piston and a cylinder, and one of the piston and the cylinder is fixed to the sliding contact plate, and the other is in contact with the reaction force material, and the sliding contact plate and the reaction force material are moved forward and backward by the piston. 25. The rotating device for bridge construction according to claim 22, 23 or 24, comprising a plurality of hydraulically driven jacks that move relative to each other.
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