JP2772158B2 - Bridge girder erection method - Google Patents
Bridge girder erection methodInfo
- Publication number
- JP2772158B2 JP2772158B2 JP12758191A JP12758191A JP2772158B2 JP 2772158 B2 JP2772158 B2 JP 2772158B2 JP 12758191 A JP12758191 A JP 12758191A JP 12758191 A JP12758191 A JP 12758191A JP 2772158 B2 JP2772158 B2 JP 2772158B2
- Authority
- JP
- Japan
- Prior art keywords
- vent
- bridge girder
- erection
- lifting
- 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 - Lifetime
Links
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- Bridges Or Land Bridges (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は橋桁の架設方法、特に高
架橋の架設に好適な架設方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for erection of a bridge girder, and more particularly to a method for erection of a viaduct.
【０００２】[0002]
【従来の技術】高架橋など橋桁の架設では、従来、図７
に示すように建設された橋脚０１，０１の間に架設すべ
き桁が所定の高さとなるように桁組立用ベント０２，０
２を仮設配置し、これら隣り合う橋脚０１と組立用ベン
ト０２上に、地上クレーン０３で桁部材０４を吊上げ、
組立用ベント０２上で桁部材０４の組立て接合を行った
後、組立用ベント０２の解体を行っている。2. Description of the Related Art In the construction of a bridge girder such as a viaduct, as shown in FIG.
The girder assembling vents 02, 0 are arranged so that the girder to be erected between the piers 01, 01 constructed as shown in FIG.
2 is temporarily placed, and a girder member 04 is lifted by a ground crane 03 on the adjacent pier 01 and the assembly vent 02,
After assembling and joining the girder member 04 on the assembling vent 02, the assembling vent 02 is disassembled.
【０００３】[0003]
【発明が解決しようとする課題】前述の従来技術には次
のような問題点がある。現状のトラッククレーン及び組
立用ベントを用いる方法は、組立て架設の殆んど全作業
が高所作業となっており墜落災害の危険要因を多く含ん
でいる。またこの種の高所作業には、高所に熟練した特
殊作業者があたっているが、作業者も高齢化傾向にあ
り、特殊作業員の確保も困難な状況となっていて、安全
面での対策が更に必要となって来ている。The above-mentioned prior art has the following problems. In the current method using a truck crane and a vent for assembling, almost all the work of assembling and erection is performed at a high place and includes many risk factors of a crash disaster. In this type of work at high places, skilled workers are working at high places.However, workers are also aging and it is difficult to secure special workers. More measures are needed.
【０００４】本発明は、上記問題点に対し、この種作業
を可能な限り低所作業で行えるようにし、安全性を高め
ることを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to improve the safety by performing this kind of work as low as possible.
【０００５】[0005]
【課題を解決するための手段】橋脚横の最寄り位置に迫
上げ型架設用ベルトを配置し、上記迫上げ型架設用ベン
ト上に、低い高さ位置において、橋桁単位を組立て支持
し、上記迫上げ型ベントを所定の高さまで迫上げ、上記
迫上げたベント上から橋脚上へ橋桁単位を横引き設置す
る順に架設を行なう。Means for Solving the Problems A lifting type erection belt is disposed at the nearest position next to the pier, and a bridge girder unit is assembled and supported on the lifting type erection vent at a low height position. The raised vent is raised to a predetermined height, and the bridge girder unit is laid horizontally on the pier from the raised vent to the bridge pier.
【０００６】[0006]
【作用】迫上げ型架設用ベントは、地上組み立て高さ
（例えば地上１．５ｍ）から、橋脚の高さ（例えば１５
ｍ）まで迫上げ可能な任意の形式のものを用い、一対の
橋脚又は３本の橋脚の横に並べて配置する。各迫上げ型
架設用ベントは適当な低い高さにベント高さを揃え、各
迫上げ型架設用ベントの間に適当数の組立用ベントを配
置する。２つの橋脚又は３つの橋脚上に搭載する長さの
橋桁単位は、上記架設用ベント及び組立用ベント上にお
いて地上に近い低い高さの作業でクレーンを用いて組立
て接合を行なう。The lifting type erection vent is installed at a height of the pier (for example, 15 m) from the ground assembly height (for example, 1.5 m above the ground).
m) Any type that can be lifted up to m) is used and arranged next to a pair of piers or three piers. Each lifting erection vent is aligned to a suitably low height, with an appropriate number of assembly vents between each lifting erection vent. A bridge girder unit of a length to be mounted on two piers or three piers is assembled and joined using a crane in a low height operation close to the ground on the erection vent and the assembly vent.
【０００７】組立て接合の済んだ橋桁単位は、架設用ベ
ント上に充分に仮固定し、ジャッキアップ等により架設
用ベントを所定の高さ位置まで迫上げる。迫上った高さ
で橋桁単位は架設用ベント上から橋脚上へ辷り部材等を
介し水平ジャッキ等を用い横引し、橋脚上の定位置へ据
付け設置する。The bridge girder unit that has been assembled and joined is sufficiently temporarily fixed on the erection vent, and the erection vent is raised to a predetermined height position by jacking up or the like. At the rising height, the bridge girder unit will be pulled laterally from the erection vent to the pier using a horizontal jack or the like via a sliding member, etc., and will be installed at a fixed position on the pier.
【０００８】[0008]
【実施例】本発明の第１実施例および本発明において使
用する迫上げ型架設用ベントを図１乃至図３について説
明する。図において１は橋脚、２は橋脚１の横に並べて
設置した迫上げ型架設用ベントである。迫上げ型架設用
ベント２は地表に設置されるジャッキアップ架構３と、
同架構３内で下継ぎ迫上げされる架設用ベント４よりな
るものを示す。ジャッキアップ架構３は側壁面に定ピッ
チのピン孔５を備えたＵ断面の４本のガイドコラム６
と、各ガイドコラム６のピン孔５に昇降用油圧シリンダ
７の上下ピンブロック８，９を介し昇降可能に支持した
迫上げビーム１０と、架構内に架設用ベントブロック４
ａを搬入する軌条１１及び台車１２を備え、上端部に図
２で示すように架設用ベント支持枠１３を設けている。
架設用ベント４はベントブロック４ａ単位の接続体にな
り、最下段のベントブロック４ａが迫上げビーム１０に
結合され、迫上げビーム１０が油圧シリンダ７の伸縮、
ピンブロック８，９のピン孔５への交互の結合によって
図１の鎖線位置１０′から実線位置１０へ迫上がり、そ
の下側に台車１２で運んだベントブロック４ａが継足さ
れるように迫上げが繰返され、これと反対の操作で下降
及びベント解体作業を行う。１５は架設用ベント４上端
に支持して組立て、迫上げられる橋脚１上に乗る長さに
地表付近の低い高さ位置で組立てた橋桁単位である。橋
桁単位１５の架設用ベント４に面する下部にはあらかじ
め横引きのためのチルタンク、あるいはすべり材等１６
を取付けて組立て、組立中及び迫上げ時にはこれらチル
タンク、すべり材等１６が働らかないようにして橋桁単
位１５を架設用ベント４上に固定することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention and a lifting type erection vent used in the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes a pier, and 2 denotes a lifting type erection vent installed side by side with the pier 1. The lifting vent 2 is a jack-up frame 3 installed on the surface of the ground,
1 shows an installation vent 4 which is raised in the same frame 3. The jack-up frame 3 is composed of four guide columns 6 having a U section and having pin holes 5 with a constant pitch on the side wall surface.
A lifting beam 10 supported in a pin hole 5 of each guide column 6 via a vertical pin block 8, 9 of a lifting hydraulic cylinder 7 so as to be liftable, and a vent block 4 for mounting in a frame.
A rail 11 and a carriage 12 for carrying in a are provided, and an installation vent support frame 13 is provided at the upper end as shown in FIG.
The erection vent 4 is a connection body of the vent block 4a unit, the lowermost vent block 4a is coupled to the lifting beam 10, and the lifting beam 10
By alternately connecting the pin blocks 8 and 9 to the pin holes 5, the pin blocks 8 rise from the chain line position 10 'to the solid line position 10 in FIG. 1, and the vent block 4a carried by the carriage 12 is extended below the pin block. The raising operation is repeated, and the lowering and vent dismantling operations are performed by the opposite operations. Reference numeral 15 denotes a bridge girder unit which is supported at the upper end of the erection vent 4 and assembled, and is assembled at a low height near the surface of the pier 1 to be lifted. In the lower part of the bridge girder unit 15 facing the erection vent 4, a chill tank or a sliding material 16
During the assembling, assembling and lifting, the bridge girder unit 15 can be fixed on the erection vent 4 such that the chill tank, the sliding member 16 and the like 16 do not work.
【０００９】図４，図５および図６は、上記迫上げ型架
設用ベント２を使用して行う本発明の第２，第３および
第４実施例を示す。図４の第２実施例は、２つの橋脚
１，１の間に橋桁１５を架設する場合を示している。迫
上げ型架設用ベント２，２はベントブロック４ａ１ケ分
を挿入した高さで橋桁１５を地上組みする状態とし、判
り易くするため橋脚１とずらせて横に配置して示した。
橋脚１中心と合わせて設ければその位置で反対側〔図の
左隣り又は右隣り〕の橋桁１５架設にもそのまゝの位置
で使用できる。１７は架設用ベント２，２間に必要数、
所定の高さに設けた組立用ベントである。橋桁単位１５
は上記低い高さの迫上げ型架設用ベント２，２と組立用
ベント１７上で、複数の桁材１５ａの端を継手１５ｂで
接続して鎖線１５′の状態に組立てる。橋桁単位１５′
の架設用ベント４に接する面には、前記したようにチル
タンク又はすべり板等１６が設けられ、これをベント２
上面と直接接触させないで架設用ベント４上に橋桁単位
１５′を充分に固定する。２組の迫上げ型架設用ベント
２，２を同期的に、第１実施例において説明した要領
で、架設用ベント４を下継ぎ上昇させて橋桁単位１５を
橋脚１と同一高さ〔図１の鎖線位置〕まで迫上げる。下
継ぎ上昇する架設用ベント４は、ジャッキアップ架構３
の迫上げビーム１０と上端のベント支持枠１３で縦方向
に支持され案内される。この時上昇する架設用ベント４
は更にトラワイヤ等を用いて垂直を維持させることがで
きる。FIGS. 4, 5 and 6 show second, third and fourth embodiments of the present invention which are carried out by using the above-described lifting type erection vent 2. FIG. The second embodiment of FIG. 4 shows a case where a bridge girder 15 is erected between two piers 1 and 1. The lifting-type erection vents 2 and 2 are shown in a state where the bridge girder 15 is assembled on the ground at a height where one vent block 4a is inserted, and shifted sideways from the pier 1 for easy understanding.
If it is provided along with the center of the pier 1, it can be used in the same position even when the bridge girder 15 is installed on the opposite side (to the left or right in the figure). 17 is the required number between the erection vents 2 and 2,
An assembly vent provided at a predetermined height. Bridge girder unit 15
Are connected to the ends of a plurality of girders 15a by joints 15b on the above-described low-height lift-type erection vents 2 and 2 and the assembling vent 17 to assemble them in a state of a chain line 15 '. Bridge girder unit 15 '
As described above, a chill tank or a slide plate 16 is provided on the surface in contact with the erection vent 4, and this is provided with the vent 2.
The bridge girder unit 15 'is sufficiently fixed on the erection vent 4 without directly contacting the upper surface. In the same manner as described in the first embodiment, the two sets of the lifting type erection vents 2 and 2 are raised synchronously in the manner described in the first embodiment, and the bridge girder unit 15 is raised to the same height as the pier 1 [FIG. Dashed line position). The ascending erection vent 4 is connected to the jack-up frame 3
Is supported and guided in the vertical direction by the lifting beam 10 and the vent support frame 13 at the upper end. The erection vent 4 which rises at this time
Can be further maintained vertically by using a wire or the like.
【００１０】図１の橋脚１高さに迫上げた橋桁単位１５
は、この位置で架設用ベント４との結合を解き、チルタ
ンク又はすべり板１６をベント４上に接触させ、橋脚１
上の図示しない横引手段例えば水平ジャッキ等に結合
し、橋脚１上の仮設レール又はすべり板上にすべり移動
させて定位置へ横引きし、橋脚１上の支承上に据付け設
置する。A bridge girder unit 15 raised to the height of the pier 1 in FIG.
Breaks the connection with the erection vent 4 at this position, brings the chill tank or the sliding plate 16 into contact with the vent 4,
It is connected to a horizontal pulling means (not shown) such as a horizontal jack or the like, and is slid and moved on a temporary rail or a slide plate on the pier 1 to be pulled laterally to a fixed position, and is installed on a support on the pier 1.
【００１１】この方法によると、桁材１５ａ相互の位置
合わせ、継手接続など橋桁単位１５の組立てが地上レベ
ルの低所作業で行なえるようになり、高所作業の危険を
なくし作業の安全性を高め、高所熱練者によらないでも
作業を安全に実施できる効果がある。また高所作業が橋
脚１上での横引き作業だけになり、危険が減少し作業の
容易になる。According to this method, assembling of the bridge girder unit 15 such as mutual alignment of the girder members 15a and connection of the joints can be performed in low-place work on the ground level, thereby eliminating the danger of high-place work and improving work safety. It has the effect that work can be carried out safely without relying on high altitude heatrs. In addition, the work at a high place is only the horizontal pulling work on the pier 1, which reduces the danger and makes the work easier.
【００１２】次に図５の第３実施例は、３つの橋脚１に
またがる２径間連続の橋桁単位１５を架設する場合の実
施例である。迫上げ型架設用ベント２は各橋脚１に並べ
て３組配置し、同様に１ベントブロック４ａ高さで、複
数の組立用ベント１７を配置し、その上に地上付近高さ
１５′で橋桁単位を組立て、３組の迫上げ型架設用ベン
ト２で迫上げ、３つの橋脚１上で併行して横引きを行
う。迫上げ横引きの要領、作用等は図４の第２実施例と
同じである。Next, a third embodiment shown in FIG. 5 is an embodiment in which a two span continuous bridge girder unit 15 spanning three piers 1 is erected. Three sets of the lifting vents 2 are arranged side by side on each pier 1. Similarly, a plurality of assembling vents 17 are disposed at a height of one vent block 4a, and a height 15 'near the ground is set on the bridge girder unit. Is assembled by three sets of lifting-type erection vents 2, and is horizontally pulled on three piers 1. The procedure, operation, and the like of the lifting horizontal pulling are the same as those of the second embodiment in FIG.
【００１３】次に図６の第４実施例は、４つの橋脚１に
またがる３径間連続の橋桁単位１５を架設する場合の実
施例である。架設は、図の（１），（２），（３）のス
テップに分けて行うことができる。ステップ（１）は右
側径間の橋桁単位部（１５−１）を低所組立て、迫上
げ、所定位置に横引上架した状態、ステップ（２）はス
スップ（１）と同じ要領で左側径間の橋桁単位部（１５
−２）を組立て、迫上げ、所定位置に横引き上架した状
態を示し、ステップ（３）では、ステップ（１），
（２）作業の完了後に、所定位置に上架済みの左右の橋
桁単位（１５−１），（１５−２）の遊間部の真下位置
に２組の迫上げ型架設用ベント２，２を配置し、中央部
の橋桁単位部（１５−３）を低所組立、迫上げ、横引き
なしで左右橋桁単位部（１５−１），（１５−２）端に
接合する。中央部橋桁単位部（１５−３）のみ高所作業
の足場上接合作業が必要になるのが、左右径間部につい
ては第２実施例と同様の作用効果が得られる。Next, a fourth embodiment shown in FIG. 6 is an embodiment in which a bridge girder unit 15 of three spans continuous over four piers 1 is erected. The erection can be performed in steps (1), (2), and (3) in the figure. Step (1) is a state in which the bridge girder unit (15-1) of the right span is assembled in a low place, raised, and horizontally pulled up to a predetermined position, and step (2) is in the same manner as the sup (1). Bridge girder unit (15
-2) shows a state in which the assembling, lifting, and laterally pulling up to a predetermined position are performed. In step (3), steps (1),
(2) After the work is completed, two sets of lift-type erection vents 2 and 2 are arranged immediately below the gaps of the left and right bridge girder units (15-1) and (15-2) which have been mounted at predetermined positions. Then, the bridge girder unit (15-3) at the center is joined to the ends of the left and right bridge girder unit (15-1) and (15-2) without assembling at a low place, lifting, and pulling sideways. Only the central bridge girder unit (15-3) needs to be joined on a scaffold for working at a high place. However, the same effect as that of the second embodiment can be obtained for the left and right spans.
【００１４】また迫上げ型架設用ベント２のベント解体
も地上でベントブロック４ａの取外し、引出し、ジャッ
キにより架設用ベント４の下降を繰返せば良いから、解
体時作業も単純化し、容易になる。なお上述した実施例
において示した迫上げ型架設用ベント２は例示したもの
に限定されることなく、他の構成が用いられて良いもの
である。Also, the dismantling of the lifting-type erection vent 2 can be simplified and facilitated by dismounting the vent block 4a on the ground, repeating the lowering of the erection vent 4 by pulling out and jacking. . The lifting-type erection vent 2 shown in the above-described embodiment is not limited to the illustrated one, and another configuration may be used.
【００１５】[0015]
【発明の効果】本発明による橋桁の架設方法は、橋脚横
の最寄り位置に迫上げ型架設用ベントを配置し、上記迫
上げ型架設用ベント上に、低い高さ位置において、橋桁
単位を組立て支持し、上記迫上げ型ベントを所定の高さ
まで迫上げ、ベント上から橋脚上へ橋桁単位を横引き設
置することにより、次の効果を有する。According to the method of erection of a bridge girder according to the present invention, a lifting girder erection vent is arranged at the nearest position next to a pier, and a bridge girder unit is assembled at a low height position on the lifting erection erection vent. By supporting and raising the lifting type vent to a predetermined height and laterally installing the bridge girder unit from above the vent to above the pier, the following effects are obtained.
【００１６】上架すべき橋桁単位の高所での組立て作業
がなくなり、橋桁架設における高所作業量を著しく減少
して安全性を高められる。また迫上げ型ベントを使用す
ることにより、ベントの組立て解体、移設の作業も地上
作業となり、作業の能率を高められる。また高所熟練作
業者によらないでも、作業を安全に実施できる。The work of assembling the bridge girder to be mounted at a high place is eliminated, so that the work at a high place when the bridge girder is erected is significantly reduced, and the safety can be improved. In addition, by using the lifting type vent, the work of assembling, disassembling, and relocating the vent is also a ground work, so that the efficiency of the work can be improved. In addition, work can be performed safely without relying on skilled workers at high places.
【図１】本発明の第１実施例の正面図である。FIG. 1 is a front view of a first embodiment of the present invention.
【図２】図１のＡ−Ａ矢視図である。FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;
【図３】図１のＢ−Ｂ矢視図である。FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;
【図４】本発明の第２実施例の正面図である。FIG. 4 is a front view of a second embodiment of the present invention.
【図５】本発明の第３実施例の正面図である。FIG. 5 is a front view of a third embodiment of the present invention.
【図６】本発明の第４実施例の正面図である。FIG. 6 is a front view of a fourth embodiment of the present invention.
【図７】従来の架設方法の作業説明図である。FIG. 7 is a work explanatory view of a conventional erection method.
１ 橋脚 ２ 迫上げ型架設用ベント ３ ジャッキアップ架構 ４ 架設用ベント ４ａ ベントブロック １５ 橋桁単位 DESCRIPTION OF SYMBOLS 1 Bridge pier 2 Lift type construction vent 3 Jack-up frame 4 Construction vent 4a Vent block 15 Bridge girder unit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村田 昶夫 広島県広島市中区江波沖町５番１号 三 菱重工工事株式会社 広島支社内 (56)参考文献 特公 昭56−53042（ＪＰ，Ｂ２) 特公 昭59−8638（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.6，ＤＢ名) E01D 21/00──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masao Murata 5-1 Enamiokicho, Naka-ku, Hiroshima-shi, Hiroshima Mitsui Heavy Industries, Ltd. Hiroshima branch office (56) References JP-B-56-53042 (JP, B2) JP-B-59-8638 (JP, B2) (58) Fields investigated (Int. Cl. 6 , DB name) E01D 21/00
Claims (1)
ントを配置し、低い高さ位置において、上記迫上げ型架
設用ベント上に橋桁単位を組立て支持し、上記迫上げ型
架設用ベントを橋脚と同一高さに迫上げ、上記迫上げた
ベント上から橋脚上へ橋桁単位を横引き設置することを
特徴とする橋桁の架設方法。1. A lifting-type erection vent is arranged at a position closest to a pier, and a bridge girder unit is assembled and supported on the lifting-type erection vent at a low height, and the lifting-type erection vent is provided. The bridge girder is raised to the same height as the pier, and a bridge girder unit is laid horizontally on the pier from above the raised vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12758191A JP2772158B2 (en) | 1991-05-30 | 1991-05-30 | Bridge girder erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12758191A JP2772158B2 (en) | 1991-05-30 | 1991-05-30 | Bridge girder erection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04353105A JPH04353105A (en) | 1992-12-08 |
| JP2772158B2 true JP2772158B2 (en) | 1998-07-02 |
Family
ID=14963606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12758191A Expired - Lifetime JP2772158B2 (en) | 1991-05-30 | 1991-05-30 | Bridge girder erection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2772158B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4507913B2 (en) * | 2005-02-24 | 2010-07-21 | 山九株式会社 | Transporting and loading heavy objects |
| JP4671912B2 (en) * | 2006-06-01 | 2011-04-20 | 三菱重工鉄構エンジニアリング株式会社 | Bridge replacement method |
| JP4884082B2 (en) * | 2006-06-01 | 2012-02-22 | 三菱重工鉄構エンジニアリング株式会社 | Bridge replacement method |
| JP4563413B2 (en) * | 2007-02-01 | 2010-10-13 | 株式会社巴コーポレーション | Bridge girder construction method |
| JP2016069918A (en) * | 2014-09-30 | 2016-05-09 | 日本車輌製造株式会社 | Bent assembly device and bent assembly method |
| JP6374353B2 (en) * | 2015-06-09 | 2018-08-15 | オリエンタル白石株式会社 | How to build a bridge |
| CN114232488B (en) * | 2021-12-15 | 2023-11-28 | 中交路桥建设有限公司 | Method for erecting main girder of large-span cable-stayed bridge |
| CN114232487B (en) * | 2021-12-15 | 2024-04-19 | 中交路桥建设有限公司 | Construction system for erecting main girder of large-span cable-stayed bridge |
-
1991
- 1991-05-30 JP JP12758191A patent/JP2772158B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04353105A (en) | 1992-12-08 |
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