JP3026545B2 - Bridge girder erection method and device - Google Patents

Bridge girder erection method and device

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Publication number
JP3026545B2
JP3026545B2 JP7210822A JP21082295A JP3026545B2 JP 3026545 B2 JP3026545 B2 JP 3026545B2 JP 7210822 A JP7210822 A JP 7210822A JP 21082295 A JP21082295 A JP 21082295A JP 3026545 B2 JP3026545 B2 JP 3026545B2
Authority
JP
Japan
Prior art keywords
girder
bridge
bridge girder
erection
pier
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
JP7210822A
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Japanese (ja)
Other versions
JPH0959930A (en
Inventor
孝夫 川島
Original Assignee
株式会社ピー・エス
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Filing date
Publication date
Application filed by 株式会社ピー・エス filed Critical 株式会社ピー・エス
Priority to JP7210822A priority Critical patent/JP3026545B2/en
Publication of JPH0959930A publication Critical patent/JPH0959930A/en
Application granted granted Critical
Publication of JP3026545B2 publication Critical patent/JP3026545B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は高速道路などの多数
の橋桁を架設して建設する橋梁の橋桁架設方法及びその
装置に関し、更に詳しくは、特に市街地や供用中の既設
道路などに並行して高架橋を建設する場合に高架橋側道
や橋脚下横の地上を橋桁の搬入路として利用して橋桁を
架設する橋桁架設方法及びその装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for erection of a bridge girder of a bridge constructed by erection of a number of bridge girders such as an expressway, and more particularly, to a method for constructing a bridge girder particularly in an urban area or an existing road in service. The present invention relates to a bridge girder erection method and an apparatus for erection of a bridge girder using a viaduct side road or a ground under a pier as a carry-in path for a bridge girder when constructing a viaduct.

【0002】[0002]

【従来の技術】高速道路高架橋など橋長の大きい桁式橋
梁の橋桁の架設には、直近ヤードや工場で製作した橋桁
をトラックやトレーラで運搬し、トラッククレーンで吊
上げ架設する方法や、架設位置に橋桁吊上げ用門型クレ
ーンを設置して橋桁を吊上げ架設する方法がある。
2. Description of the Related Art A bridge girder of a girder bridge having a large bridge length, such as a highway viaduct, is constructed by transporting a bridge girder manufactured in a nearby yard or a factory by truck or trailer, and lifting by a truck crane. There is a method of installing a bridge crane for lifting a bridge girder and lifting the bridge girder.

【0003】図6はトラッククレーンを用いる方法の側
面図、図7はその平面図である。桁長が短く桁重が小さ
い橋桁30では一台のトラッククレーン60で吊上げて
架設することが可能であるが、桁長が長くなったり橋の
立地条件によっては橋桁の両端を二台のトラッククレー
ン60、60で吊上げ架設する必要がある。図7では桁
30を運搬する軌道61を設け台車62、62に載せて
運搬し、トラッククレーン60、60で橋桁30を30
aのように吊り取り、橋脚20、20上に載置する場合
を示している。この場合、トラッククレーン60の据え
付け路盤の補強のための鉄板の敷き並べなどに時間が掛
かり、交通量の多い所では長時間の交通遮断や交通規制
をせざるを得ないこととなる。そのため夜間など交通量
の少ない時間帯を選定し、数時間に亘って交通遮断し作
業を行ってきた。
FIG. 6 is a side view of a method using a truck crane, and FIG. 7 is a plan view thereof. The bridge girder 30 having a short girder length and a small girder weight can be lifted and erected by one truck crane 60. However, depending on the girder length or the location of the bridge, both ends of the bridge girder can be lifted by two truck cranes. It is necessary to lift and erection at 60,60. In FIG. 7, a track 61 for transporting the girder 30 is provided and transported on trucks 62, 62.
The case where it is hung up like a and placed on the piers 20, 20 is shown. In this case, it takes time to lay iron plates to reinforce the roadbed at which the truck crane 60 is installed, and in places with heavy traffic, it is inevitable to shut down or restrict traffic for a long time. For this reason, they have selected a time zone with low traffic volume, such as at night, and cut off the traffic for several hours.

【0004】また、門型クレーンを使用する方法として
は、図5に示すように、門型クレーン50を一定の橋桁
吊上げ位置に固定して設置し、梁51、脚52、53、
吊上装置54、走行装置55を用いて矢印56で示すよ
うに、橋桁30を吊上げ橋脚20上に載せる定置式の方
法がある。また、他の方法として図示していないが門型
クレーン走行用の軌道を敷設し門型クレーンをその軌道
上を走行可能にして置き、架設位置を移動して橋桁を架
設する移動式の方法もあった。
As a method of using a portal crane, as shown in FIG. 5, a portal crane 50 is fixedly installed at a fixed bridge girder lifting position, and a beam 51, legs 52, 53,
A stationary type in which the bridge girder 30 is mounted on the lifting pier 20 as shown by an arrow 56 using the lifting device 54 and the traveling device 55.
There is a law . Further, Lay the track laying and Mongata crane for illustrated non but traveling portal crane as other methods can run its orbit, mobile method of erection of the bridge girder to move the erection position There was also.

【0005】[0005]

【発明が解決しようとする課題】上記トラッククレーン
を使用する架設方法は、長時間に亘って交通規制をする
必要がある。また、地上に設けた門型クレーンを使用し
た橋桁の吊上げ架設は、門型クレーンが定置式、移動式
の何れの場合も大型な門型クレーンを必要とする問題が
あった。
In the method of erection using the truck crane, it is necessary to regulate traffic for a long time. In addition, the lifting and erection of a bridge girder using a portal crane provided on the ground has a problem that a large portal crane is required regardless of whether the portal crane is a stationary type or a mobile type.

【0006】本発明は比較的簡便な設備により、交通路
に特別な設備や補強を必要とせず、短時間の規制で交通
を可能な限り確保しながら橋桁の架設を可能にする橋桁
架設方法及びその装置を提供することを目的とする。
[0006] The present invention provides a bridge girder erection method which enables erection of a bridge girder by using relatively simple equipment without requiring special equipment or reinforcement on a traffic route and securing traffic as much as possible with a short-term regulation. It is intended to provide the device.

【0007】[0007]

【課題を解決するための手段】本発明方法は橋桁を架設
しようとする前後両橋脚間に亘って橋脚両横端位置にそ
れぞれ支保工桁を掛け渡し、これらの支保工桁に桁吊上
反力を支持させて橋脚側方下方から桁を吊上げ両橋脚上
に架設することを特徴とする橋桁架設方法である。
According to the method of the present invention, a supporting girder is spanned at both lateral end positions of the piers between the front and rear piers on which the bridge girder is to be erected, and the girder lifting uprights are mounted on these supporting girder. This is a bridge girder erection method characterized in that a girder is lifted from below the side of the pier while supporting the force and erected on both piers.

【0008】本発明方法を好適に実施することができる
本発明装置は、橋脚間に掛け渡した支保工桁上に載置さ
れ、該支保工桁の側方より外方に張出す梁を設けた2台
の門型架設機を備え、この門型架設機は桁吊上反力を支
保工桁に支持させる反力装置を備えたことを特徴とする
橋桁架設装置である。
An apparatus according to the present invention, which can suitably carry out the method of the present invention, is mounted on a shoring girder spanned between piers, and provided with a beam extending outward from a side of the shoring girder. A bridge girder erection device, comprising: two portal erection machines; and a reaction device for supporting the girder lifting reaction force on the supporting girder.

【0009】[0009]

【発明の実施の形態】本発明は、橋桁を架設しようとす
る前後両橋脚間に支保工桁を掛け渡し、この支保工桁に
門型架設機を載せ、この門型架設機にオーバーハング部
を有する梁を設ける。門型架設機の脚を前記支保工桁上
に前後進可能に載置し組立て、前記梁に橋脚と平行に走
行自在な揚重機を吊設する。本発明方法は支保工桁に桁
吊上反力を支持させて橋脚側方下方から桁を吊上げ両橋
脚上に架設する。
BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a supporting girder is bridged between both front and rear piers on which a bridge girder is to be erected, and a portal type erection machine is mounted on the pier girder. Is provided. The legs of the gate-type erection machine are mounted on the shoring girder so as to be able to move forward and backward, and assembled, and a lift capable of traveling freely in parallel with the pier is hung on the beam. According to the method of the present invention, the support girder supports the girder lifting reaction force, and the girder is lifted from below the pier side and erected on both piers.

【0010】図2に本発明の実施例の側面図を、図3に
その平面図を示した。実施例の橋桁架設装置は、次の
(a)、(b)、(c)、(d)を備えている。 (a)支保工桁23(架設桁+手延桁):2連 (b)横繋ぎ材24、25: 前後2組 (c)送出しローラ(ジャッキ付き)19:6組 (d)門型架設機10(走行装置+脚+横移動梁+横行
装置+揚重機):2基 これらの橋桁架設装置は次のように組立られる。
FIG. 2 is a side view of an embodiment of the present invention, and FIG. 3 is a plan view thereof. The bridge girder erection apparatus of the embodiment includes the following (a), (b), (c), and (d). (A) Shoring girder 23 (construction girder + hand-rolled girder): 2 stations (b) Horizontal connecting members 24, 25: front and rear 2 sets (c) Delivery roller (with jack) 19: 6 sets (d) Portal type Erecting machine 10 (traveling device + leg + lateral moving beam + traversing device + hoist): 2 units These bridge girder erection devices are assembled as follows.

【0011】地上で2連の支保工桁23、23を組立
て、クレーンで橋脚20a、20b、20c上に送出し
ローラ19を介して設置し、2連の支保工桁23、23
間を相互に横繋ぎ材24、25で連結する。橋脚の幅が
狭い場合はブラケット21(図1参照)などで拡幅す
る。同じく、地組した、前後2基の門型架設機10、1
0を支保工桁23、23上に設置する。
On the ground, two supporting girders 23, 23 are assembled and sent out onto the piers 20a, 20b, 20c by a crane and installed via rollers 19, and the two supporting girders 23, 23 are provided.
The spaces are connected to each other by horizontal connecting members 24 and 25. When the width of the pier is narrow, the width is increased by the bracket 21 (see FIG. 1) or the like. Similarly, the front and rear two portal erection machines 10, 1
0 is installed on the shoring girder 23.

【0012】橋桁30を架設しようとする橋脚(例えば
橋脚20a、20b)間に、支保工桁23を送出しロー
ラ19で移動して、支保工桁23を据え付ける。門型架
設機10、10を、橋桁を架設しようとする径間の前後
各橋脚20a,20b上に移動する。横移動梁12の橋
桁30吊上げ予定端の反対端に反力装置を備える。反力
装置は例えば図4に示すように、脚11の下の走行装置
26を直下の支保工桁23と反力梁28をボルト27で
仮固定し、支保工桁23を橋桁30を橋脚側方から吊上
げる時の反力となるカウンターウェイトとする。この様
子を図4に示す。次に図1に示すように、揚重機(電動
チェンブロック)13を吊下した横行装置14を横移動
梁12の橋桁30吊上げ端オーバーハング部に移動し、
橋桁30の吊上げ架設の準備を完了する。
The support girder 23 is sent out between the piers (for example, the piers 20a and 20b) on which the bridge girder 30 is to be erected and is moved by the rollers 19 to install the support girder 23. The gate-type erection machines 10 and 10 are moved on the piers 20a and 20b before and after the span where the bridge girder is to be installed. A reaction force device is provided at the end of the lateral beam 12 opposite to the end of the bridge girder 30 to be lifted. As shown in FIG. 4, for example, the reaction device temporarily fixes the traveling device 26 below the leg 11 to the support girder 23 and the reaction beam 28 immediately below with the bolt 27, and connects the support girder 23 to the bridge girder 30 on the pier side. Counterweight that acts as a reaction force when lifting from above. This is shown in FIG. Next, as shown in FIG. 1, the traversing device 14 suspending the hoisting machine (electric chain block) 13 is moved to the overhang portion of the bridge girder 30 lifting end of the lateral moving beam 12,
The preparation for the lifting and erection of the bridge girder 30 is completed.

【0013】次に橋桁30の吊上架設工程について図1
により説明する。工場またはヤードで製作した橋桁30
を積載したトレーラ32を、橋脚下吊上げ位置に誘導
し、橋桁30の前後端の所定位置を橋脚上門型架設機1
0から吊下げした電動チェンブロック13によって運搬
トレーラ32から矢印15に示すように吊上げ、矢印1
6で示すように横移動し、トレーラ32を解放する。こ
の間の必要時間は15分程度である。
Next, the process of erecting the bridge girder 30 will be described with reference to FIG.
This will be described below. Bridge girder 30 manufactured in factory or yard
Is guided to the lifting position under the pier, and a predetermined position at the front and rear ends of the bridge girder 30 is moved to the pier upper gate type erection machine 1.
0 from the transport trailer 32 by the electric chain block 13 suspended from
6. The trailer 32 is moved laterally as shown by 6 and the trailer 32 is released. The required time during this period is about 15 minutes.

【0014】橋脚20上に取り込んだ橋桁30を門型架
設機10の横行装置14で矢印17で示すように下げ
て、橋脚上所定位置に据え付け、次の橋桁の取り込み準
備をする。橋脚上に架設する所定橋桁本数に達したら、
橋桁架設装置の次架設径間へ移設準備となる。
The bridge girder 30 taken in on the pier 20 is lowered by the traversing device 14 of the portal erection machine 10 as shown by an arrow 17 and installed at a predetermined position on the pier to prepare for taking in the next bridge girder. When the specified number of bridge girders to be built on the pier is reached,
Preparations are made to relocate the bridge girder to the next span.

【0015】次に本発明装置の移設について説明する。
門型架設機10の片端脚のカウンターウェイトとした走
行装置26と、支保工桁23の固定を解除し、後方門型
架設機を前方門型架設機位置まで走行装置26により移
動する。横繋ぎ材24、25で連結された2連の支保工
桁23、23を送出しローラ19で、2基の門型架設機
10、10を上載したまま、次架設径間まで前進させ
る。この時、支保工桁23、23の後端が後部橋脚から
外れた瞬間から支保工桁23、23の後部が片持ち張出
しとなるので、支保工桁の長手方向重心位置を考慮しな
がら2基の門型架設機10、10の位置調整や、支保工
桁23、23の後端を橋面(架設据付済み橋桁上面)か
ら仮支持するなどの措置をする。これは、支保工桁2
3、23の全長と架設径間長との関連であらかじめ検討
しておく。
Next, the relocation of the device of the present invention will be described.
The traveling device 26, which is a counterweight of one end leg of the portal erection machine 10, and the fixing of the support girder 23 are released, and the rear portal erection machine is moved by the traveling device 26 to the front portal erection machine position. The two supporting beams 23, 23 connected by the horizontal connecting members 24, 25 are sent out and are advanced by the rollers 19 to the next span while the two portal type machines 10, 10 are mounted thereon. At this time, the rear part of the support girders 23, 23 is cantilevered from the moment the rear ends of the support girders 23, 23 are detached from the rear pier. The position of the portal-type erection machines 10 and 10 is adjusted, and the rear ends of the shoring girders 23 and 23 are temporarily supported from the bridge surface (the upper surface of the installed bridge girder). This is the girder 2
It will be examined in advance in relation to the total length of 3, 23 and the length of the span.

【0016】所定位置まで、支保工桁23、23の移動
が完了したら、前後2基の門型架設機10、10を前後
橋脚位置に移動し、カウンターウェイト処置をして準備
が完了する。以上の工程を繰り返し橋梁全体の橋桁を架
設する。上記実施例では、門型架設機10、10の横移
動梁のオーバーハングが片端のみのものについて説明し
たが、梁の両端にオーバーハングを設けることで、橋梁
の立地条件により都合の良い橋脚下側面から橋桁の取り
込みが可能となり、交通状況に合わせて架設することが
できる。
When the movement of the support girders 23, 23 to the predetermined position is completed, the front and rear two portal erection machines 10, 10 are moved to the front and rear pier positions, and the preparation is completed by counterweight treatment. The above steps are repeated to build a bridge girder for the entire bridge. In the above-described embodiment, the overhang of the lateral moving beams of the portal erection machines 10 and 10 is only one end. However, by providing the overhangs at both ends of the beams, it is more convenient to use under bridge piers depending on the location conditions of the bridge. The bridge girder can be taken in from the side, and can be installed according to traffic conditions.

【0017】また、本発明の実施により、僅か15分程
度で交通を開放できることから、長時間の交通規制をす
ることなく、交通量の少ない時間帯を巧みに利用して橋
桁の架設をすることも可能となる。更に、本発明方法
は、供用中の道路敷の橋桁架設だけでなく、河川敷など
に橋桁製作ヤードを設けて製作した橋桁を台車などで橋
脚下に誘導して架設する場合にも当然利用可能である。
Further, since the traffic can be opened in only about 15 minutes by implementing the present invention, the bridge girder can be erected by skillfully utilizing a time zone with a small traffic volume without restricting traffic for a long time. Is also possible. Further, the method of the present invention can be naturally applied not only to the construction of a bridge girder on a roadside in operation, but also to the case where a bridge girder manufactured by providing a bridge girder manufacturing yard on a riverbed or the like is guided under a pier with a bogie or the like. is there.

【0018】[0018]

【発明の効果】本発明によれば、門型架設機の横移動梁
のオーバーハング部で、橋脚下のトレーラから橋桁を揚
重取り込み、橋面上に移動してしまえば、橋脚下のトレ
ーラの移動のみでたとえ供用中の道路であっても極めて
短時間の交通規制で済み、長時間に亘って交通規制する
必要がない。また作業効率の向上などに絶大な効果を得
ることが可能となった。
According to the present invention, a bridge girder is lifted from a trailer under a pier at an overhang portion of a lateral moving beam of a gate-type erection machine, and if the bridge girder is moved onto a bridge surface, the trailer under the pier is moved. Even if the road is in operation, traffic regulation is only required for a very short time, and there is no need to regulate traffic for a long time. In addition, it has become possible to obtain a tremendous effect in improving work efficiency.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例の門型架設機の架設正面図である。FIG. 1 is a construction front view of a portal construction machine of an embodiment.

【図2】実施例の桁吊上を示す側面図である。FIG. 2 is a side view showing the girder lifting of the embodiment.

【図3】実施例の桁吊上を示す平面図である。FIG. 3 is a plan view showing the girder lifting of the embodiment.

【図4】支保工桁と門型架設機の結合を示す正面図であ
る。
FIG. 4 is a front view showing the connection between the shoring girder and the portal erection machine.

【図5】従来方法の説明図である。FIG. 5 is an explanatory diagram of a conventional method.

【図6】従来方法の説明図である。FIG. 6 is an explanatory diagram of a conventional method.

【図7】従来方法の説明図である。FIG. 7 is an explanatory diagram of a conventional method.

【符号の説明】[Explanation of symbols]

10 門型架設機 11 脚 12 横移動梁 13 揚重機 14 横行装置 15、16、17
矢印 19 送出ローラ 20(20a、2
0b、20c) 橋脚 21 ブラケット 23 支保工桁 24、25 繋ぎ
材 26 走行装置 27 ボルト 28 反力梁 30 橋桁 32 トレーラ 50 門型クレー
ン 51 梁 52 脚 53 脚 54 吊上装置 55 走行装置 60 トラックク
レーン 61 軌道 62 台車
DESCRIPTION OF SYMBOLS 10 Portal type construction machine 11 Leg 12 Lateral moving beam 13 Lifting machine 14 Traversing device 15, 16, 17
Arrow 19 Delivery roller 20 (20a, 2
0b, 20c) Pier 21 Bracket 23 Supporting girder 24, 25 Connecting member 26 Traveling device 27 Bolt 28 Reaction beam 30 Bridge girder 32 Trailer 50 Portal crane 51 Beam 52 Leg 53 Leg 54 Lifting device 55 Traveling device 60 Truck crane 61 Track 62 bogie

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 橋桁を架設しようとする前後両橋脚間に
亘って橋脚両横端位置にそれぞれ支保工桁を掛け渡し、
該支保工桁に桁吊上反力を支持させて橋脚側方下方から
桁を吊上げ該両橋脚上に架設することを特徴とする橋桁
架設方法。
Claims: 1. A shoring girder is provided at both lateral end positions of a pier between front and rear piers on which a bridge girder is to be erected.
A method of erection of a bridge girder, wherein the support girder supports a girder lifting reaction force, and a girder is lifted from below the pier side and erected on both piers.
【請求項2】 橋脚間に掛け渡した支保工桁上に載置さ
れ、該支保工桁の側方より外方に張出す梁を設けた2台
の門型架設機を備え、該門型架設機に桁吊上反力を前記
支保工桁に支持させる反力装置を備えたことを特徴とす
る橋桁架設装置。
2. A gate type erection machine which is mounted on a shoring girder spanned between piers and provided with beams extending outward from sides of the shoring girder. A bridge girder erection device, comprising: a erection machine; and a reaction force device for supporting a girder lifting reaction force on the support girder.
JP7210822A 1995-08-18 1995-08-18 Bridge girder erection method and device Expired - Fee Related JP3026545B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7210822A JP3026545B2 (en) 1995-08-18 1995-08-18 Bridge girder erection method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7210822A JP3026545B2 (en) 1995-08-18 1995-08-18 Bridge girder erection method and device

Publications (2)

Publication Number Publication Date
JPH0959930A JPH0959930A (en) 1997-03-04
JP3026545B2 true JP3026545B2 (en) 2000-03-27

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ID=16595701

Family Applications (1)

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Country Status (1)

Country Link
JP (1) JP3026545B2 (en)

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