JP4219046B2 - Arch bridge upper floor receiving beam - Google Patents

Arch bridge upper floor receiving beam Download PDF

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Publication number
JP4219046B2
JP4219046B2 JP14367999A JP14367999A JP4219046B2 JP 4219046 B2 JP4219046 B2 JP 4219046B2 JP 14367999 A JP14367999 A JP 14367999A JP 14367999 A JP14367999 A JP 14367999A JP 4219046 B2 JP4219046 B2 JP 4219046B2
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Japan
Prior art keywords
upper floor
floor slab
receiving beam
support
tip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP14367999A
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Japanese (ja)
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JP2000328520A (en
Inventor
良弘 原田
文明 園部
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Taisei Corp
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Taisei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to JP14367999A priority Critical patent/JP4219046B2/en
Publication of JP2000328520A publication Critical patent/JP2000328520A/en
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Description

【０００１】
【発明の属する技術分野】
本発明は、アーチ橋の上床版受梁に関するものである。
【０００２】
【従来の技術】
図２に示すように、アーチ橋の施工方法として、アーチリブ500の先端に作業台車600を装備して、この台車において型枠および鉄筋の組み立て、コンクリート打設を行ないつつリブを張り出してゆく施工方法が採用されている。
【０００３】
【発明が解決しようとする課題】
アーチリブ500は、上床版、下床版、側壁からなるボックス状にコンクリートを打設する場合がある。上床版コンクリートを打設する場合は、上床版打設用型枠を受梁で支持して行なうが、この受梁はアーチリブ500の張出しの進行に伴って前方に移動させる必要がある。
【０００４】
従来は、上床版に送りローラーを取り付けて受梁を移動させていたが、送りローラーの盛り替え作業や、上床版に送りローラー取り付け用の穴開け作業が必要であった。また、受梁は後方に移動量に見合った長さが必要であった。
【０００５】
【発明の目的】
本発明は、上記のような問題点を解決するためになされたもので、送りローラーの盛り替え作業や、送りローラー取り付け用の穴開け作業が不要であり、しかも受梁の長さを短くすることができる、アーチ橋の上床版受梁を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記課題を解決するための手段として本発明は、アーチ橋のボックス状アーチリブ桁の上床版コンクリートを打設する際に、上床版打設用型枠を支持する上床版 受梁において、前記上床版受梁はアーチリブ桁の張出し方向に沿って配置し、この上床版受梁の先端部は、アーチリブ桁の先端に装備した作業台車から吊り下げ、上床版受梁の基端部には、下端に車輪を有すると共に、高さ調節が可能な支柱を取り付け、上床版受梁をアーチリブ桁の下床版上を走行可能とし、前記上床版受梁と、前記支柱との間にターンバックルを設け、前記ターンバックルによって前記上床版受梁と前記支柱との角度調整が可能に構成することを特徴とする、アーチ橋の上床版受梁を提供する。以下、図１を参照しながら、本発明の実施の形態について説明する。
【０００７】
【発明の実施の形態】
＜イ＞上床版受梁
上床版受梁100は、Ｈ型鋼材やＩ型鋼材等で作製した梁部材であり、ボックス状アーチリブ500の上床版510の１スパン以上の長さで形成される。
【０００８】
この上床版受梁100は、アーチリブ500の張出し方向に沿って配置されている。また、上床版受梁100は、アーチリブ500の巾方向に所定の間隔をおいて所要数設置し、それらの間は単管パイプ等で横組して一体化する。
【０００９】
＜ロ＞支柱
支柱110は、上床版受梁100の基端部に連結される。支柱110の下端には車輪111が装着され、下床版520上を走行可能に構成されている。
【００１０】
また、支柱110の上半部には複数の調整ピン穴112を開設し、支柱110の高さ調節ができるようにする。
【００１１】
なお、支柱110は、工場にて一体製造してもよいし、現場にてパイプサポートなどで組み立ててもよい。
【００１２】
＜ハ＞ターンバックル
上床版受梁100と支柱110との間はターンバックル113で連結する。前述の調整ピン穴112の位置を変えて支柱110の高さ調節を行ない、かつターンバックル113の調整を行なうことによって、アーチリブ500の断面変化に対応できるよう構成する。
【００１３】
＜ニ＞先端支持部
上床版受梁100の先端には、ヒンジ連結された先端支持部120を設ける。この先端支持部120は、ターンバックル121により上床版受梁100との角度調節ができるよう構成されている。
【００１４】
また、先端支持部120は、作業台車600から吊鋼棒200、チェーンブロック300によって吊り下げられている。先端支持部120は作業台車600と平行な角度で配備され、作業台車600が移動するとそれに追従して移動し、上床版受梁100を牽引する役目を有する。
【００１５】
＜ホ＞使用方法
上床版のコンクリート打設用型枠を、従来と同様に、既設の上床版510と作業台車600からＰＣ総ネジ鋼棒により吊り下げてセットする。その型枠の下面を上床版受梁100で支持し、上床版受梁100の基端側は吊鋼棒400により、既設の上床版510に吊り下げる。
【００１６】
上記の状態でコンクリートを打設した後、ＰＣ総ネジ鋼棒を引き抜き、型枠を脱型すると、支柱110の下端の車輪111が下床版520上に着地するため、即座に上床版受梁100の移動準備が完了する。そして、作業台車600の移動に追従して、上床版受梁100も移動する。
【００１７】
【発明の効果】
本発明は以上説明したようになるため、次のような効果を得ることができる。＜イ＞上床版打設用型枠を脱型すると直ぐに上床版受梁を移動させることができるため、作業の迅速性が向上する。
【００１８】
＜ロ＞下床版上を走行させるため、従来のような送りローラーは不要であり、その盛り替え作業も当然必要無い。
【００１９】
＜ハ＞送りローラー取付穴の穴開け作業も不要である。
【００２０】
＜ニ＞受梁を短くできるため、上床版下面に当たる事が無い。
【図面の簡単な説明】
【図１】 本発明の一実施の形態の説明図
【図２】 従来技術の説明図[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an upper floor receiving beam for an arch bridge.
[0002]
[Prior art]
As shown in Fig. 2, as an arch bridge construction method, a work cart 600 is installed at the tip of the arch rib 500, and the ribs are projected while assembling the formwork and reinforcing bars and placing concrete in this cart. Is adopted.
[0003]
[Problems to be solved by the invention]
The arch rib 500 may be concrete cast in a box shape composed of an upper floor slab, a lower floor slab, and a side wall. When placing the upper floor slab concrete, the upper floor slab casting formwork is supported by a receiving beam, which needs to be moved forward as the arch rib 500 extends.
[0004]
Conventionally, the feed roller is attached to the upper floor slab and the receiving beam is moved. However, it has been necessary to change the feed roller or to make a hole for attaching the feed roller to the upper floor slab. Moreover, the length of the receiving beam corresponding to the amount of movement was required in the rear.
[0005]
OBJECT OF THE INVENTION
The present invention has been made to solve the above-described problems, and does not require reworking of the feeding roller or drilling work for mounting the feeding roller, and shortens the length of the receiving beam. An object of the present invention is to provide an upper deck receiving beam for an arch bridge.
[0006]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems, the present invention provides an upper floor slab support beam for supporting an upper floor slab casting form when placing an upper floor slab concrete of a box-shaped arch rib girder of an arch bridge. The receiving beam is placed along the direction of the arch rib girder's overhang, and the upper end of the upper floor slab beam is suspended from the work carriage installed at the end of the arch rib girder. A strut that has wheels and an adjustable height is attached, and the upper floor slab support beam can travel on the lower floor slab of the arch rib girder, and a turnbuckle is provided between the upper floor slab support beam and the support column. An upper floor slab receiving beam for an arch bridge is provided , wherein the turn buckle is configured so that the angle between the upper floor slab receiving beam and the column can be adjusted . Hereinafter, an embodiment of the present invention will be described with reference to FIG.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
<A> Upper floor slab support The upper floor slab support 100 is a beam member made of H-type steel, I-type steel, or the like, and is formed with a length of one span or more of the upper slab 510 of the box-shaped arch rib 500.
[0008]
The upper floor slab support beam 100 is disposed along the extending direction of the arch rib 500. In addition, a required number of upper floor slab support beams 100 are installed at a predetermined interval in the width direction of the arch rib 500, and a space between them is integrated by a single pipe or the like.
[0009]
<B> The support column 110 is connected to the base end portion of the upper floor receiving beam 100. A wheel 111 is attached to the lower end of the column 110 and is configured to be able to travel on the lower floor slab 520.
[0010]
In addition, a plurality of adjustment pin holes 112 are formed in the upper half of the support 110 so that the height of the support 110 can be adjusted.
[0011]
In addition, the support | pillar 110 may be manufactured integrally in a factory, and may be assembled with a pipe support etc. on the spot.
[0012]
<C> A turnbuckle 113 is connected between the turnbuckle upper deck receiving beam 100 and the column 110. By changing the position of the adjustment pin hole 112 described above to adjust the height of the column 110 and adjusting the turnbuckle 113, the cross section of the arch rib 500 can be accommodated.
[0013]
<D> Tip Support Unit A tip support unit 120 that is hinged is provided at the tip of the upper floor slab receiving beam 100. The tip support portion 120 is configured such that the angle with the upper floor receiving plate 100 can be adjusted by a turnbuckle 121.
[0014]
The tip support portion 120 is suspended from the work carriage 600 by the suspended steel rod 200 and the chain block 300. The tip support portion 120 is disposed at an angle parallel to the work carriage 600, and moves to follow the work carriage 600 when it moves, and has a function of pulling the upper floor receiving beam 100.
[0015]
<E> How to use The formwork for placing the concrete of the upper floor slab is suspended from the existing upper floor slab 510 and the work carriage 600 and set with a PC total screw steel bar, as in the past. The lower surface of the formwork is supported by the upper floor slab support beam 100, and the base end side of the upper floor slab support beam 100 is suspended from the existing upper floor slab 510 by the suspension steel bar 400.
[0016]
After placing concrete in the above state, pulling out the PC total threaded steel rod and removing the formwork, the wheel 111 at the lower end of the column 110 will land on the lower floor slab 520. 100 moves ready. Then, following the movement of the work carriage 600, the upper floor receiving beam 100 also moves.
[0017]
【The invention's effect】
Since the present invention has been described above, the following effects can be obtained. <I> Since the upper floor slab support beam can be moved immediately after removing the form for placing the upper floor slab, the speed of work is improved.
[0018]
<B> Since it runs on the lower floor slab, a conventional feed roller is not required, and the refilling work is naturally unnecessary.
[0019]
<C> Drilling of the feed roller mounting hole is also unnecessary.
[0020]
<D> Since the receiving beam can be shortened, it does not hit the lower surface of the upper floor slab.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an embodiment of the present invention. FIG. 2 is an explanatory diagram of a prior art.

Claims (2)

アーチ橋のボックス状アーチリブ桁の上床版コンクリートを打設する際に、上床版打設用型枠を支持する上床版受梁において、
前記上床版受梁はアーチリブ桁の張出し方向に沿って配置し、
この上床版受梁の先端部は、アーチリブ桁の先端に装備した作業台車から吊り下げ、
上床版受梁の基端部には、下端に車輪を有すると共に、高さ調節が可能な支柱を取り付け、
上床版受梁をアーチリブ桁の下床版上を走行可能とし、
前記上床版受梁と、前記支柱との間にターンバックルを設け、
前記ターンバックルによって前記上床版受梁と前記支柱との角度調整が可能に構成することを特徴とする、
アーチ橋の上床版受梁。When placing the upper floor slab concrete of the box-shaped arch rib girder of the arch bridge, in the upper floor slab support that supports the form for casting the upper floor slab,
The upper floor slab support beam is arranged along the extending direction of the arch rib girder,
The top of the upper floor slab is hung from the work carriage equipped at the tip of the arch rib girder,
At the base end of the upper floor slab support beam, there is a wheel at the lower end, and a column with height adjustment is attached.
The upper floor plate receiving beam can be run on the lower floor plate of the arch rib girder ,
A turnbuckle is provided between the upper floor slab support beam and the support column,
The turnbuckle is configured to be capable of adjusting the angle between the upper floor receiving beam and the support column ,
The upper floor plate of the arch bridge. 請求項１に記載のアーチ橋の上床版受梁において、
前記上床梁受梁は、先端部にヒンジ連結した先端支持部を介してアーチリブ桁の先端に装備した作業台車から吊り下げ、
前記上床版受梁と、前記先端支持部との間にターンバックルを設け、
前記ターンバックルによって前記上床版受梁と前記先端支持部との角度調整が可能に構成することを特徴とする、
アーチ橋の上床版受梁。In the upper deck receiving beam of the arch bridge according to claim 1 ,
The upper floor beam receiving beam is suspended from a work carriage equipped at the tip of the arch rib girder via a tip support portion hinged to the tip.
A turnbuckle is provided between the upper floor plate receiving beam and the tip support part,
The turn buckle is configured to enable angle adjustment between the upper floor receiving beam and the tip support portion,
The upper floor plate of the arch bridge.
JP14367999A 1999-05-24 1999-05-24 Arch bridge upper floor receiving beam Expired - Fee Related JP4219046B2 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
JP14367999A JP4219046B2 (en) 1999-05-24 1999-05-24 Arch bridge upper floor receiving beam

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JP4219046B2 true JP4219046B2 (en) 2009-02-04

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JP4402856B2 (en) * 2001-07-18 2010-01-20 三井住友建設株式会社 How to install arch ribs
CN102691269A (en) * 2012-06-12 2012-09-26 四川公路桥梁建设集团有限公司 Movable hanging basket with main arch and concrete outside
CN105064218A (en) * 2015-09-09 2015-11-18 中国铁建大桥工程局集团有限公司 First-arch and second-girder type sling hanging basket used for tied-arch bridge construction
JP6491582B2 (en) * 2015-10-09 2019-03-27 鹿島建設株式会社 Mobile trolley
CN108374319B (en) * 2018-04-08 2024-03-26 北京城建道桥建设集团有限公司 Lower-bearing type tied-arch bridge structural unit, arch bridge structure and construction method thereof
CN110792038B (en) * 2019-11-11 2021-06-25 山东交通学院 A self-propelled hanging formwork tool and method for high-altitude cast-in-place beams of tied arch bridges
CN111455810A (en) * 2020-05-12 2020-07-28 云南交投集团云岭建设有限公司 Construction method for main body structure of steel box tied arch bridge
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CN119392627B (en) * 2024-11-29 2025-09-26 中交路桥华南工程有限公司 A construction method for pouring concrete on a rigid skeleton arch bridge using a hanging basket

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108252218A (en) * 2017-12-15 2018-07-06 中铁上海工程局集团有限公司 A kind of large span cable-carried arch bridge steel lagging jack external wrapping concrete bed die slide device

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