JPH0515845B2 - - Google Patents
Info
- Publication number
- JPH0515845B2 JPH0515845B2 JP976185A JP976185A JPH0515845B2 JP H0515845 B2 JPH0515845 B2 JP H0515845B2 JP 976185 A JP976185 A JP 976185A JP 976185 A JP976185 A JP 976185A JP H0515845 B2 JPH0515845 B2 JP H0515845B2
- Authority
- JP
- Japan
- Prior art keywords
- girder
- cross beam
- work vehicle
- existing
- reaction force
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
この発明は、カンチレバー架設される橋梁全て
に適用可能であり、特に斜張橋、アーチ橋に適し
た下支え式架設作業車に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention is applicable to all cantilever-erected bridges, and particularly relates to an under-supported construction vehicle suitable for cable-stayed bridges and arch bridges.
＜従来技術とその問題＞
架設作業車としては、橋桁の上面に移動自在の
主体トラスを設け、型枠・足場を主体トラス先端
の吊材で吊る形式のいわゆるフオルバウワーゲン
がある。<Prior art and its problems> As an erection work vehicle, there is a so-called forbauwagen, which has a movable main truss on the upper surface of a bridge girder and suspends formwork and scaffolding from hanging materials at the ends of the main truss.
このような架設作業車の場合、その構造上、装
置が大きなものとなつて重量が増し、さらに、橋
桁上部の空間が占有されるため、斜張橋等のよう
に吊材が配置される構造には不利であり、作業性
が悪い。 In the case of such an erection work vehicle, the equipment is large and heavy due to its structure, and the space above the bridge girder is occupied, so it is not possible to use a structure such as a cable-stayed bridge where hanging materials are placed. It is disadvantageous and has poor workability.
この発明は、このような事情に鑑みて提案され
たもので、その目的は斜張橋などに適用可能な下
支え式架設作業車を提供することにある。 The present invention has been proposed in view of the above circumstances, and its purpose is to provide an under-support type construction work vehicle that can be applied to cable-stayed bridges and the like.
＜問題点を解決するための手段＞
この発明に係る下支え式架設作業車は構築され
るべき橋桁の下方に橋桁加設方向に沿設され、前
端部に型枠・足場が載架されるガーダーと、上方
横梁、吊梁及び下方横梁で既設桁を下方から抱き
込む形状で既設桁に乗設され、下方横梁で前記ガ
ーダーを支持するとともに既設桁に吊材により着
脱自在とされた横梁と、この横梁の上方、横梁の
下部に取付けられ作業車全体を走行させる走行装
置及び作業車全体を昇降させる昇降装置と、
前記ガーダーの後部に設けられ作業車の反力を
既設桁下面へ伝達する反力受け装置とからなり、
横梁とガーダーにより型枠・足場を直接既設桁
へ支持させ、さらに、反力受け装置により既設桁
の下面側に反力を取り、方持ち形式で施工するよ
うにしたものである。<Means for Solving the Problems> The under-support type construction work vehicle according to the present invention is a girder installed below a bridge girder to be constructed in the direction of adding the bridge girder, and on which formwork and scaffolding are mounted on the front end. and a cross beam that is mounted on the existing girder in a shape that embraces the existing girder from below with the upper cross beam, the suspension beam, and the lower cross beam, supports the girder with the lower cross beam, and is detachable from the existing girder by means of a hanging material; A traveling device is installed above and below the cross beam to move the entire working vehicle, and a lifting device is installed to raise and lower the entire working vehicle; The formwork and scaffolding were supported directly to the existing girder by the cross beams and girders, and the reaction force was taken from the underside of the existing girder by the reaction force receiving device, allowing construction to be carried out in a side-supported manner. It is something.
＜実施例＞
以下この発明を図示する一実施例に基づいて説
明する。<Example> The present invention will be described below based on an illustrated example.
第１図、第２図に示すように、橋桁Ｇの下方
に、橋桁幅方向に一対のガーダー１が橋桁架設方
向に向かつて沿設され、その前端部に先端から足
場２、型枠３が載架されている。 As shown in FIGS. 1 and 2, a pair of girders 1 are installed below the bridge girder G in the width direction of the bridge girder, facing in the direction of constructing the bridge girder, and a scaffold 2 and a formwork 3 are attached to the front end of the girder 1 from the tip. It is on a shelf.
この一対のガーダー１，１は、横梁４により略
中央部で支持され互いに斜材１３により連結され
ている。 The pair of girders 1, 1 are supported substantially in the center by a cross beam 4 and connected to each other by a diagonal member 13.
横梁４は、二つ上方横梁５、二つの吊梁６、下
方横梁７を剛結して既設桁G1を下から抱き込む
ような〓形状とされ、既設桁G1に垂設されつつ
下方横梁７によりガーダー１を支持している。 The cross beam 4 has a shape that rigidly connects two upper cross beams 5, two suspension beams 6, and a lower cross beam 7, and embraces the existing girder G1 from below, and is vertically installed on the existing girder G1 . The girder 1 is supported by a cross beam 7.
さらに、この横梁４は、斜めの吊材８により既
設桁G1に着脱自在に固定され、緊張用ジヤツキ
９により緊結される。 Furthermore, this cross beam 4 is removably fixed to the existing girder G 1 by diagonal hanging members 8 and tightened by tension jacks 9.
上方横梁５の下面には走行装置１０が取付けら
れ作業車全体を走行させる。この走行装置１０
は、走行レール１０ａを転動する一対の車輪１０
ｂと、これを駆動する駆動装置１０ｃからなる。 A traveling device 10 is attached to the lower surface of the upper cross beam 5 to cause the entire working vehicle to travel. This traveling device 10
is a pair of wheels 10 rolling on a traveling rail 10a
b, and a drive device 10c that drives this.
さらに、上方横梁５の下面には昇降装置として
の昇降用ジヤツキ１１が取付けられ、作業車全体
を昇降させることより型枠３の脱型およびセツト
が行なえるようにされている。 Further, a lifting jack 11 as a lifting device is attached to the lower surface of the upper cross beam 5, so that the mold 3 can be demolded and set by lifting and lowering the entire working vehicle.
また、ガーダー１の後端部における上面には、
作業車の反力を既設桁下面へ伝達する反力受け装
置１２が設けられている。この反力受け装置１２
は、ゴム製の車輪１２ａと反力受け用ジヤツキ１
２ｂからなり、前者が移動時、後者が打設時に使
用される。 In addition, on the upper surface of the rear end of the girder 1,
A reaction force receiving device 12 is provided to transmit the reaction force of the work vehicle to the lower surface of the existing girder. This reaction force receiving device 12
is a rubber wheel 12a and a reaction force receiving jack 1.
2b, the former is used for moving and the latter for pouring.
以上のような構成の下支え式架設作業車におい
て次のような架設作業を行なう。（第３図ないし
第６図参照）
(i) 新たにコンクリートを打設した桁G2のコン
クリートの硬化後、緊張用ジヤツキ９により吊
材８をゆるめ抜き取る。この時、昇降用ジヤツ
キ１１および反力受け用ジヤツキ１２ｂはジヤ
ツキアツプしており、車輪１０ｂ，１２ａは浮
いた状態である。 The following construction work is carried out using the under-support type construction work vehicle configured as described above. (Refer to Figures 3 to 6) (i) After the newly poured concrete of girder G 2 has hardened, loosen the hanging members 8 using tension jacks 9 and remove them. At this time, the lifting jack 11 and the reaction force receiving jack 12b are jacked up, and the wheels 10b and 12a are in a floating state.
(ii) この状態から走行レール１０ａを所定の位置
まで前進させて固定した後、ジヤツキ１１，１
２ｂをジヤツキダウンして車輪１０ｂ，１２ａ
で作業車を支持させ、次に型枠３を脱型する。(ii) From this state, after advancing the running rail 10a to a predetermined position and fixing it, the jacks 11, 1
2b and wheels 10b and 12a.
to support the work vehicle, and then demold the formwork 3.
(iii) 走行装置１０により作業車を所定の位置まで
前進させた後、ジヤツキ１１，１２をジヤツキ
アツプして横梁４を上昇させ、型枠３を所定の
位置にセツトする。(iii) After the work vehicle is advanced to a predetermined position by the traveling device 10, the jacks 11 and 12 are jacked up to raise the cross beam 4, and the formwork 3 is set in a predetermined position.
(iv) 上方横梁５、桁G2及び下方横梁７の挿通孔
に吊材８を差込んで緊張用ジヤツキ９によりこ
れを緊張すると、上方横梁５及び下方横梁７が
たわみ桁G2を緊結し、横梁４は桁G2に固定さ
れる。(iv) When the hanging members 8 are inserted into the insertion holes of the upper cross beam 5, girder G 2 and lower cross beam 7 and tensioned with tensioning jacks 9, the upper cross beam 5 and lower cross beam 7 will tighten the flexible girder G 2 . , the cross beam 4 is fixed to the girder G 2 .
このような状態からコンクリートを打設し、順
次(i)〜(ii)を繰り返すことにより橋梁が架設され
る。 From this state, concrete is poured and a bridge is constructed by repeating steps (i) to (ii) in sequence.
なお、このような架設作業車は、簡単な改造を
施すことにより、中央連結工用の支保工に容易に
使用できる。 Incidentally, such an erection work vehicle can be easily used as a support for central connection work by making simple modifications.
＜発明の効果＞
この発明に係る下支え式架設作業車は、以上の
ような構成からなるので、次のような効果を奏す
る。<Effects of the Invention> Since the under-support type construction work vehicle according to the present invention has the above-described configuration, it has the following effects.
(i) 橋桁上面に空間があるため、斜張橋等のよう
に吊材が配置される構造においても経済的に有利
となり、また作業性が良い。(i) Since there is a space above the bridge girder, it is economically advantageous even in structures where suspension members are arranged, such as cable-stayed bridges, and has good workability.
(ii) 構造を比較的簡単な構成とすることができる
とともに重量を軽くすることができる。(ii) The structure can be relatively simple and the weight can be reduced.
(iii) 型枠・足場を一体とすることができる。(iii) Formwork and scaffolding can be integrated.
(iv) 中央連結工用の支保工に容易に改造できる。(iv) Easily converted into shoring for central linkage.
第１図、第２図はこの発明に係る下支え式架設
作業車を示す側面図、横断面図、第３図、第４
図、第５図、第６図は同様の作業車による架設作
業を施工順に示した概略図であり、Ａは側面図、
Ｂは横断面図である。
１……ガーダー、２……足場、３……型枠、４
…横梁、５……上方横梁、６……吊梁、７……下
方横梁、８……吊材、９……緊張用ジヤツキ、１
０……走行装置、１０ａ……走行レール、１０ｂ
……車輪、１０ｃ……駆動装置、１１……昇降用
ジヤツキ、１２……反力受け装置、１２ａ……車
輪、１２ｂ……反力受け用ジヤツキ、１３……斜
材。
FIGS. 1 and 2 are a side view and a cross-sectional view, and FIGS.
Figures 5 and 6 are schematic diagrams showing construction work using similar work vehicles in the order of construction, and A is a side view;
B is a cross-sectional view. 1...Girder, 2...Scaffolding, 3...Formwork, 4
... Cross beam, 5 ... Upper cross beam, 6 ... Hanging beam, 7 ... Lower cross beam, 8 ... Hanging material, 9 ... Tension jack, 1
0... Traveling device, 10a... Traveling rail, 10b
...wheels, 10c...drive device, 11...lifting jack, 12...reaction force receiving device, 12a...wheels, 12b...reaction force receiving jack, 13...diagonal member.
Claims (1)
沿設され、前端部に型枠・足場が載荷されるガー
ダーと、 上方横梁、吊梁及び下方横梁で既設桁を下方か
ら抱き込む形状で既設桁に乗設され、下方横梁で
前記ガーダーを支持するとともに既設桁に吊材に
より着脱自在とされた横梁と、 この横梁の上方横梁の下部に取付けられ作業車
全体を走行させる走行装置及び作業車全体を昇降
させる昇降装置と、 前記ガーダーの後部に設けられ作業車の反力を
既設桁下面へ伝達する反力受け装置とからなるこ
とを特徴とする下支え式架設作業車。[Scope of Claims] 1. A girder installed below the bridge girder to be constructed in the direction of bridge girder construction, on which formwork and scaffolding are loaded at the front end, and an upper cross beam, a suspension beam, and a lower cross beam that support the existing girder downward. The girder is mounted on the existing girder in a hugging shape, and the girder is supported by the lower cross beam, and the girder is detachable from the existing girder using hanging materials. An under-support type construction work vehicle characterized by comprising a traveling device that raises and lowers the entire work vehicle, and a reaction force receiving device that is installed at the rear of the girder and transmits the reaction force of the work vehicle to the lower surface of the existing girder. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP976185A JPS61169507A (en) | 1985-01-22 | 1985-01-22 | Under support type construction working vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP976185A JPS61169507A (en) | 1985-01-22 | 1985-01-22 | Under support type construction working vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61169507A JPS61169507A (en) | 1986-07-31 |
| JPH0515845B2 true JPH0515845B2 (en) | 1993-03-02 |
Family
ID=11729258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP976185A Granted JPS61169507A (en) | 1985-01-22 | 1985-01-22 | Under support type construction working vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61169507A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988909B (en) * | 2017-07-28 | 2019-12-10 | 中铁二十四局集团有限公司 | A trailer for fast transportation and erection of railway beams |
| CN114808722A (en) * | 2022-05-09 | 2022-07-29 | 中铁四局集团第一工程有限公司 | Construction method of cable-stayed bridge reinforced concrete main beam |
-
1985
- 1985-01-22 JP JP976185A patent/JPS61169507A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61169507A (en) | 1986-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11634877B2 (en) | Method for removal of temporary support system for road bridge pre-fabricated small box girder-type concealed bent cap, and equipment therefor | |
| JP2009299418A (en) | Retreating and removing method and retreating device for travelling work vehicle for cantilever construction | |
| JP2010059748A (en) | Apparatus and method for constructing bridge girder | |
| JP3804883B2 (en) | Concrete high structure construction apparatus and concrete oblique column construction method | |
| JP3110985B2 (en) | Construction method of column capital of overhang girder bridge | |
| EP1111135A2 (en) | Method of building viaducts | |
| JP2007315077A (en) | Construction method for corrugated steel web bridge using girder wagon | |
| JPH0515845B2 (en) | ||
| JPH07102524A (en) | Construction method for concrete cable-stayed bridge and formwork support cart used for it | |
| JPS5845522B2 (en) | How to build a bridge | |
| JPH05195513A (en) | Lining work car for arch bridge | |
| JP3873101B2 (en) | Equipment for placing slabs | |
| CN114232502B (en) | A self-propelled sliding formwork truss and its use method | |
| JPH0350841B2 (en) | ||
| JPS6314903A (en) | Arch ring execution method in concrete arch bridge | |
| JPH0352811Y2 (en) | ||
| JPS649403B2 (en) | ||
| JPH049901B2 (en) | ||
| JP2565573Y2 (en) | Volberwagen reaction force support device | |
| JPS649406B2 (en) | ||
| JPS649404B2 (en) | ||
| JP2002069930A (en) | Working scaffold | |
| JPS62197508A (en) | Moving type mold frame construction method high bridge slab | |
| SU863753A1 (en) | Method of erecting the split span structures of overpass | |
| JPS584126B2 (en) | Construction method for concrete bridge superstructure |