JPH10204830A - Method for bridging bridge girder - Google Patents

Method for bridging bridge girder

Info

Publication number
JPH10204830A
JPH10204830A JP9012278A JP1227897A JPH10204830A JP H10204830 A JPH10204830 A JP H10204830A JP 9012278 A JP9012278 A JP 9012278A JP 1227897 A JP1227897 A JP 1227897A JP H10204830 A JPH10204830 A JP H10204830A
Authority
JP
Japan
Prior art keywords
bridge
girder
bridge girder
girders
main
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.)
Pending
Application number
JP9012278A
Other languages
Japanese (ja)
Inventor
Kunio Irino
邦夫 入野
Masashi Furukawa
誠志 古川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Marine Co Ltd
Oriental Construction Co
Original Assignee
Oriental Construction Co
Sanshin Kogyo KK
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
Application filed by Oriental Construction Co, Sanshin Kogyo KK filed Critical Oriental Construction Co
Priority to JP9012278A priority Critical patent/JPH10204830A/en
Publication of JPH10204830A publication Critical patent/JPH10204830A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a method for bridging a bridge girder that can bridge a bridge girder positively for a short construction period of time even in no adequate working space in the upper direction. SOLUTION: This method comprises the steps of installing a bridge girder installation machine 4 crossing over the ready installed girders, mounting on the bridge girder installation machine 4 lift-furnished movable truck 5 that can move in the longitudinal direction of the bridge girder installation machine 4, attaching a previously formed bridge girder side surface block 7 to each lift to be transported successively between the ready installed bridge girders, connecting a plurality of the transported bridge girder side surface blocks 7 for constructing one side surface main girder to be installed between the ready bridge girders 1 and slid to be disposed at one side in the pier width direction. In the next place, the side surface main girders at the other side are connected likewise before formation and installation to be slid and disposed at the other side in the girder width direction by keeping distances from the side surface main girders at one side, and concrete is placed for a girder floor system in a space between both the side surface main girders for connecting both the main girders.

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、断面略U字状をな
すいわゆる鉄橋型の橋桁架橋工法に関するものである。
一般に例えば河川を跨ぐ断面略U字状をなすいわゆる鉄
橋型の橋桁が架橋されたとき、前記断面略U字状の両側
壁間には複線の線路が形成され、その線路上を電車が走
行する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge construction method of a so-called iron bridge type having a substantially U-shaped cross section.
Generally, for example, when a so-called iron bridge type bridge girder having a substantially U-shaped cross section across a river is bridged, a double-tracked track is formed between both side walls having the substantially U-shaped cross section, and a train runs on the track. .

【0002】[0002]

【従来の技術】従来、断面略U字状をなすいわゆる鉄橋
型橋桁の架橋工法としては、図8及び図9に示すものが
知られており(一般に現場打ち工法と称されている)、
例えば形成すべき橋桁のコンクリート加重に耐えられる
よう予め強固な支保工30を組み立て、その上で前記断
面略U字状をなす橋桁形成用の型枠31を組み立て、該
型枠31内にコンクリートを打設後、プレストレスを導
入し、一対の橋脚の両端で支持できる構造形とするもの
である。
2. Description of the Related Art Conventionally, as a method of bridging a so-called iron bridge type bridge girder having a substantially U-shaped cross section, a method shown in FIGS. 8 and 9 has been known (generally referred to as a cast-in-place method).
For example, a strong support 30 is assembled in advance so as to withstand the concrete load of the bridge girder to be formed, and a bridge girder forming form 31 having a substantially U-shaped cross section is assembled thereon, and concrete is placed in the form 31. After the casting, prestress is introduced, and the structure can be supported at both ends of a pair of piers.

【0003】しかして、かかる工法は現場で一般に多く
用いられる工法ではあるが、道路や河川上では前述した
支保工30を立設するのはきわめて困難なため、結果と
してこの工法では橋桁施工はきわめて困難となる。さら
に組み立てた支保工30の上でさらに断面略U字状をな
す橋桁用型枠31を組み立てるため、高さを大きくとら
ざるを得なくなって、上方に余裕のない箇所では困難な
工法となる。
[0003] Although such a construction method is generally used on site, it is extremely difficult to erect the above-mentioned shoring work 30 on roads and rivers, and as a result, bridge girder construction is extremely difficult with this construction method. It will be difficult. In addition, since the bridge girder formwork 31 having a substantially U-shaped cross section is further assembled on the assembled support structure 30, the height has to be large, and it is a difficult construction method in a place where there is no room above.

【0004】次に、図10に示す工法(押し出し工法)
も従来から知られている。すなわち、橋桁を架設場所よ
り後方の位置で形成し、先端側には手延機32を取り付
けて連結した後、先方に引き出した装置を用いて移動さ
せて架橋する工法である。この工法では、支保工が立設
出来ない場所において用いられる工法であるが、先方に
手延機32を取り付けるため、移動時に前方方向にその
長さ分の余裕がないと手延機32が前進できないことが
ある。
[0004] Next, the method shown in FIG. 10 (extrusion method)
Has also been known for some time. That is, the bridge girder is formed at a position behind the erection location, a hand-rolling machine 32 is attached to the leading end side, connected, and then moved by using a device pulled out to bridge. This method is used in a place where a shoring cannot be erected. However, since the hand-rolling machine 32 is attached to the front side, the hand-rolling machine 32 moves forward if there is no room for the length in the forward direction when moving. There are things you can't do.

【0005】さらに図11,図12には従来工法(支持
桁33と吊り門型34の併用工法)が示されているが、
この従来工法は相隣る橋脚間に跨る支持桁33を設置
し、その上で橋桁側面主桁を作成するものである。そし
て、完成後は吊り門型34上方の吊り装置35で所定の
位置へ移動して据え付けその後、床版打設する工法であ
る。
Further, FIGS. 11 and 12 show a conventional construction method (a combined construction method of using a supporting girder 33 and a hanging gate type 34).
In this conventional method, a support girder 33 is provided to straddle between adjacent bridge piers, and a main girder on the side of the bridge girder is formed thereon. After completion, the slab is moved to a predetermined position by a suspension device 35 above the suspension gate type 34, installed, and then slab-cast.

【0006】この工法では支保工が使用できない状況で
も、前記支持桁上で桁作製出来るが、大型の吊り門型3
4が必要なために、例えば上の方向に立体的高速道路や
線路が形成されていた場合には、やはり上方の作業空間
がとれないため施工できないとの課題がある。
[0006] In this method, even when a shoring cannot be used, a girder can be manufactured on the supporting girder.
For example, if a three-dimensional highway or a railway track is formed in the upward direction because of the requirement of 4, the work cannot be performed because the work space above cannot be taken.

【0007】[0007]

【発明が解決しようとする課題】かくして、本発明は前
記従来の課題に鑑みて創案されたものであり、大型の型
枠を必要とせず、最小限の型枠ですみ、さらに大型の吊
り門型状吊り装置を必要とせず、これも必要最小限の吊
り装置ですみ、さらには橋桁設置個所の上方向に立体的
に形成された高速道路あるいは線路等が架設されてい
て、充分な作業空間が上方向になかったとしても確実に
かつ短期間の工期で橋桁を架橋できる橋桁の架橋工法を
提供することを目的とするものである。
SUMMARY OF THE INVENTION Thus, the present invention has been made in view of the above-mentioned conventional problems, does not require a large formwork, requires a minimum formwork, and has a large suspension gate. There is no need for a model-type suspension device, which requires only the minimum necessary suspension device. In addition, a three-dimensionally formed highway or track is installed above the bridge girder installation point, and there is sufficient work space. It is an object of the present invention to provide a bridge girder bridging method capable of bridging a bridge girder surely and with a short construction period even if the bridge girder is not in the upward direction.

【0008】[0008]

【課題を解決するための手段】本発明による橋桁の架橋
工法は、既設の橋脚間に跨って橋桁架設機を架設し、該
橋桁架設機上には橋桁架設機長手方向に移動可能な吊り
具付き移動台車を載置し、前記吊り具にはあらかじめ形
成された橋桁側面用ブロックを取り付けて、既設の橋桁
間に順次運搬し、前記運搬した複数の橋桁側面用ブロッ
クを接続して一方側の側面主桁を構成して既設の橋脚間
に架設すると共に、橋脚幅方向一方側にスライドさせて
配置し、次いで、他方側の側面主桁も同様にして接続
し、構成、架設すると共に、一方側の側面主桁と間隔を
あけて橋脚幅方向他方側にスライドさせて配置してな
り、前記両側面主桁間の空間には両主桁を接続する橋桁
床版をコンクリート打設して構成したことを特徴とし、
または、既設の橋脚間に跨って橋桁架設機を架設し、該
橋桁架設機上には橋桁架設機長手方向に移動可能な吊り
具付き移動台車を載置し、前記吊り具にはあらかじめ形
成された橋桁側面用ブロックを取り付けて、既設の橋桁
間に順次運搬し、前記運搬した複数の橋桁側面用ブロッ
クを緊密接続して一方側の側面主桁を構成して既設の橋
脚間に架設すると共に、橋脚幅方向一方側にスライドさ
せて配置し、次いで、他方側の側面主桁も同様にして緊
密接続し、構成、架設すると共に、一方側の側面主桁と
間隔をあけて橋脚幅方向他方側にスライドさせて配置し
てなり、前記両側面主桁間の空間には両主桁を緊密接続
する橋桁床版をコンクリート打設して構成したことを特
徴とし、または、既設の橋脚間に跨って橋桁架設機を架
設し、該橋桁架設機上には橋桁架設機長手方向に移動可
能な吊り具付き移動台車を載置し、前記吊り具にはあら
かじめ形成された橋桁側面用ブロックを取り付けて、既
設の橋桁間に順次運搬し、前記運搬した複数の橋桁側面
用ブロックを緊密接続して一方側の側面主桁を構成して
既設の橋脚間に架設すると共に、橋脚幅方向一方側にス
ライドさせて配置し、次いで、他方側の側面主桁も同様
にして緊密接続し、構成、架設すると共に、一方側の側
面主桁と間隔をあけて橋脚幅方向他方側にスライドさせ
て配置してなり、前記両側面主桁間の空間には両主桁を
緊密接続する橋桁床版をコンクリート打設して構成して
あり、前記橋桁床版の形成は、前記橋桁架設機上に移動
可能に載置した型枠台車から吊り下げた摺動式型枠で前
記両主桁間を塞ぎ、その上にコンクリートを打設したこ
とを特徴とする。
According to the bridge girder bridging method of the present invention, a bridge girder erection machine is erected over an existing pier, and a hanger movable in the longitudinal direction of the bridge girder erection machine on the bridge girder erection machine. With the movable trolley is mounted, a pre-formed bridge girder side block is attached to the hoisting tool, sequentially transported between the existing bridge girders, and the plurality of transported bridge girder side blocks are connected to one side. Construct the side main girder and install it between the existing piers, slide it to one side in the pier width direction and arrange it, then connect the other side main girder in the same way, configure and erection, It is arranged by sliding to the other side in the bridge pier width direction at an interval from the side main girder on the side, and a bridge girder slab connecting the two main girders is cast in concrete in the space between the main girder on both sides. It is characterized by doing
Alternatively, a bridge girder erection machine is erected between the existing piers, and a movable trolley with a hanger movable in the longitudinal direction of the girder erection machine is placed on the girder erection machine, and the hanger is formed in advance. Attached bridge girder side blocks, sequentially transported between existing bridge girders, tightly connected the plurality of transported bridge girder side blocks to form one side main girder, and erected between existing bridge piers. , Slide it to one side in the bridge pier width direction, and then tightly connect, configure and bridge the other side main girder in the same way, and leave a space with the one side main girder in the pier width direction. It is characterized by having been slid to the side, a bridge girder slab that tightly connects the two main girders is cast in concrete in the space between the main girders on both sides, or between existing piers. A bridge girder erection machine is erected A movable carriage with a hanger movable in the longitudinal direction of the bridge girder erection machine is placed on the top, a pre-formed bridge girder side block is attached to the hanger, and the carriage is sequentially transported between the existing bridge girder, A plurality of bridge girder side blocks are tightly connected to form a side main girder on one side, installed between existing piers, slid to one side in the pier width direction, and then placed on the other side main girder. The girder is similarly tightly connected, constructed and erected, and slid to the other side in the bridge pier width direction with an interval from one side main girder, and the space between the main girder on both sides is The bridge girder slab for tightly connecting the two main girder is constructed by casting concrete, and the bridge girder slab is formed by sliding the bridge girder from a form carrier movably mounted on the bridge girder erection machine. Close the space between the two main girders with a formwork, Characterized in that it was Da設 the over door.

【0009】(作用)本発明によれば、断面略U字溝を
なし、所定の長さを有する橋桁を一気に形成するのでは
なく、両側面主桁用のブロックを予め工場で作り、それ
ら複数を順次既設の橋桁間まで吊り下げて運搬する。運
搬後は、これらを長手方向に接続して板状の側面主桁と
し、最後に現場で一対の両側面主桁間の床版を現場仕上
げする。
(Operation) According to the present invention, instead of forming a bridge girder having a substantially U-shaped cross section and having a predetermined length at once, blocks for main girder on both sides are prepared in advance in a factory, To the existing bridge girder. After transportation, these are connected in the longitudinal direction to form a plate-shaped side main girder, and finally, the floor slab between the pair of both side main girder is finished on site.

【0010】そして、前記側面主桁用ブロックを上下移
動させて作業する作業移動範囲が狭くてすみ、その結果
上方に別の高速道路が形成されていても作業機材が衝突
しない。前記床版の形成も分割して行え、最後に緊密接
続するようになっている。よって大型機材がいっさい必
要とせず、強固な橋桁が形成できる。
[0010] The work moving range in which the side main girder block is moved up and down to work is small, and as a result, work equipment does not collide even if another highway is formed above. The formation of the floor slab can be performed in a divided manner, and finally, the slab is tightly connected. Therefore, a strong bridge girder can be formed without requiring any large equipment.

【0011】[0011]

【発明の実施の形態】以下、本発明による橋桁の架橋工
法につき説明する。図1乃至図7において、符号1は河
川2の中に立設されている既設の橋脚を示す。この橋脚
1,1に線路用鉄橋型の橋桁3が架設される。まず、既
設の橋脚1,1間に跨って橋桁架設機4を架設する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a bridge girder bridge construction method according to the present invention will be described. In FIGS. 1 to 7, reference numeral 1 denotes an existing pier standing upright in a river 2. A bridge girder 3 of a railway bridge type is installed on the piers 1 and 1. First, a bridge girder erection machine 4 is erected between the existing piers 1 and 1.

【0012】該橋脚架設機4は図から理解されるよう
に、その上に橋桁架設機4の長手方向に移動可能な移動
台車5が載置されている。この移動台車5には吊り具6
が吊り下げて設けてあり、該吊り具6には橋桁側面用ブ
ロック7が吊り下げられる様構成されている。ここで、
該橋桁側面用ブロック7は、あらかじめ形成工場内で形
成されている。
As can be seen from the figure, the pier erection machine 4 has a movable carriage 5 mounted thereon, which can be moved in the longitudinal direction of the bridge girder erection machine 4. The movable trolley 5 has a suspender 6
The hanging tool 6 is configured such that a bridge girder side block 7 is hung. here,
The bridge girder side block 7 is formed in advance in a forming factory.

【0013】そして、橋桁側面用ブロック7は通常1個
あたり重量が60トン、長さは6メートル乃至7メート
ルの大きさとなっている。しかして、移動台車5と吊り
具6を使用して複数の橋桁側面用ブロック7を橋脚1,
1間に移動させる。最終的に本実施の態様では、一対の
橋脚1,1間において6個乃至7個の橋桁側面用ブロッ
ク7をPC鋼棒などで緊密に接続して橋桁側面主桁8
(通常総重量が420トン、総長さが420メートル)
を構成するものとされる(図4参照)。
The bridge girder block 7 usually has a weight of 60 tons and a length of 6 to 7 meters. Thus, the plurality of bridge girder side blocks 7 are connected to the piers 1,
Move between 1 Finally, in the present embodiment, six to seven bridge girder side blocks 7 are tightly connected by a PC steel bar or the like between a pair of piers 1 and 1 to form a bridge girder side main girder 8.
(Usually gross weight 420 tons, total length 420 meters)
(See FIG. 4).

【0014】この6個乃至7個の橋桁側面用ブロック7
を接続して形成した一方側の橋桁側面主桁8は前記既設
の一対の橋脚1,1間に架設、仮置きされ、架設、仮置
き後に橋脚1の幅方向端部側に移動させて所定の位置に
配置する。次いで、橋桁側面主桁8の他方側について
も、前記一方側橋桁側面主桁8と同様に接続、緊密接続
され、橋脚1の幅方向所定の位置に、すなわち前記一方
側の橋桁側面主桁8と間隔をあけた位置に設置する。
The six or seven bridge girder side blocks 7
The main girder 8 on one side of the bridge girder formed by connecting the bridge piers 1 is erected and temporarily placed between the pair of existing piers 1 and 1. To the position of. Next, the other side of the bridge girder side main girder 8 is connected and tightly connected in the same manner as the one side bridge girder side main girder 8, and at a predetermined position in the width direction of the pier 1, that is, the one side bridge girder side main girder 8. And place it at an interval.

【0015】続いて、その後、設置した双方の橋桁側面
主桁8,8の上方にある橋脚架設機4上面からは、該橋
桁側面主桁8,8の下面に双方の橋桁側面主桁8,8を
接続する床版10を形成すべく床版施工用型枠9を取り
付ける。ここで、図3,図4から理解されるように、こ
の床版施工用型枠9は例えば橋脚側面用ブロック7の長
手方向の長さ分だけ形成でする型枠とされている。
Subsequently, from the upper surface of the pier erection machine 4 above the two installed bridge girder side main girders 8, 8, both bridge girder side main girder 8, 8 are attached to the lower surface of the bridge girder main girder 8, 8. The slab forming formwork 9 is attached so as to form the slab 10 connecting the slabs 8. Here, as understood from FIGS. 3 and 4, the floor slab construction formwork 9 is a formwork formed by, for example, the length of the bridge pier side block 7 in the longitudinal direction.

【0016】しかも、橋脚側面用ブロック7の長手方向
の長さ分の大きさを有する大型型枠ではなく、長手方向
の長さ側に3分割出来るタイプの分割型枠として構成し
てある。何故なら、たとえ、橋脚側面用ブロック7の長
手方向の長さ分だけの型枠であったとしても、該型枠内
に打設するコンクリートの総重量はきわめて重く、所定
の型枠強度を保持することが困難となるからである。
In addition, instead of a large formwork having a size corresponding to the length in the longitudinal direction of the pier side block 7, it is constituted as a divided formwork of a type capable of being divided into three in the longitudinal direction. This is because even if the formwork is only the length of the pier side block 7 in the longitudinal direction, the total weight of the concrete poured into the formwork is extremely heavy and the predetermined formwork strength is maintained. This makes it difficult to do so.

【0017】また、床版施工用型枠9は、図3から理解
されるように橋脚架設機4の上面を移動する型枠台車1
1の両脇から一対の保持腕12,12を垂下させ、その
先端に型枠本体13,13を回動可能に取り付けて構成
されたものである。型枠本体13,13を設置した状態
は図3に示すとおりであり、この状態からコンクリート
を打設することとなる。また、その際重量が重くなり、
型枠本体13,13が下方に撓むことがあるため、吊り
体14で型枠本体13,13を吊ってある。
Further, the formwork 9 for floor slab construction is a form carrier 1 that moves on the upper surface of the pier erection machine 4 as understood from FIG.
1, a pair of holding arms 12, 12 are hung down from both sides, and formwork bodies 13, 13 are rotatably attached to the ends thereof. FIG. 3 shows a state in which the form bodies 13 are installed, and concrete is cast from this state. Also, at that time, the weight becomes heavy,
Since the form bodies 13 may be bent downward, the form bodies 13 are suspended by the suspending members 14.

【0018】前述のように、既設の橋脚1,1間におい
て、3分割型の床版施工用型枠9は橋桁架設機4の上面
を移動する型枠台車11により自在に移動可能とされ、
しかも橋脚1,1間において1カ所のみならず、数カ所
に型枠設置できる構成となっている。図4から理解され
るように、本実施の態様では、既設の橋脚1,1間にお
いて橋桁側面用ブロック7の1個半程度の間隔をあけて
2台の床版施工用型枠9を用いて床版10の形成作業を
行っている。
As described above, between the existing piers 1, 1, the three-story type slab construction formwork 9 can be freely moved by the formwork carriage 11 which moves on the upper surface of the bridge girder erection machine 4.
In addition, the formwork can be installed not only at one place but also at several places between the piers 1 and 1. As can be understood from FIG. 4, in this embodiment, two floor slab construction forms 9 are used between the existing piers 1 and 1 with an interval of about one and a half of the bridge girder side blocks 7. The floor slab 10 is formed.

【0019】前記床版施工用型枠9の設置後は、床版施
工用型枠10内にコンクリートを打設し、床版10を形
成する。その際、所要時間前記コンクリートを養生させ
て、固化させると共に、一方側の橋桁側面主桁8、床版
10及び他方側の橋桁側面主桁8を幅方向に緊密に接続
するよう、PC鋼棒を貫通し、プレストレスを与えて前
記一方側の橋桁側面主桁8、床版10及び他方側の橋桁
側面主桁8を接続させる。
After the installation of the slab formwork 9, concrete is poured into the slab formwork 10 to form the slab 10. At this time, a PC steel rod is used to cure and solidify the concrete for a required time and to tightly connect the main girder 8 on one side of the bridge girder, the floor slab 10 and the main girder 8 on the other side of the girder in the width direction. And a prestress is applied to connect the one-side bridge girder side main girder 8, the floor slab 10, and the other-side bridge girder side main girder 8 to each other.

【0020】この様に、順次、橋桁側面用ブロック7の
長さ分につき床版施工用型枠の組立、コンクリート打
設、所要時間前記コンクリートを養生、固化させると共
に、一方側の橋桁側面主桁8、床版10及び他方側の橋
桁側面主桁8を緊密に接続するよう、PC鋼棒を貫通
し、プレストレスを与えて前記一方側の橋桁側面主桁
8、床版10及び他方側の橋桁側面主桁8を接続させる
作業を行う。
As described above, the assembling of the formwork for floor slab, the concrete casting, and the required time for the length of the block 7 for the bridge girder side by side are sequentially performed, and the concrete is cured and solidified. 8, penetrate the PC steel bar to tightly connect the floor slab 10 and the other side of the bridge girder 8 and apply a prestress to the one side of the bridge girder 8, the floor slab 10 and the other side of the other side. Work to connect the main girder 8 on the side of the bridge girder.

【0021】そして、最終的には既設の橋脚1,1間に
おいて全体の床版10が完成する。この際完成した床版
10の長手方向側からも複数本のPC鋼棒を挿入し、長
手方向にもプレストレスを与えて緊密接続するものとす
る。
Finally, the entire floor slab 10 is completed between the existing piers 1 and 1. At this time, a plurality of PC steel rods are also inserted from the longitudinal direction side of the completed floor slab 10, and prestress is applied also in the longitudinal direction to make a tight connection.

【0022】[0022]

【発明の効果】かくして、本発明は以上の構成よりなる そして、本発明による橋桁の架橋工法であれば、大型の
型枠を必要とせず、最小限の型枠ですみ、さらに大型の
吊り門型状吊り装置を必要とせず、これも必要最小限の
吊り装置ですみ、さらには橋桁設置個所の上方向に立体
的に形成された高速道路あるいは線路等が架設されてい
て、充分な作業空間が上方向になかったとしても確実に
かつ短期間の工期で橋桁を架橋できる。
[Effect of the Invention] Thus, the present invention has the above-mentioned structure. If the bridge girder bridge construction method of the present invention is used, a large formwork is not required, a minimum formwork is required, and a large suspension gate is required. There is no need for a model-type suspension device, which requires only the minimum necessary suspension device. In addition, a three-dimensionally formed highway or track is installed above the bridge girder installation point, and there is sufficient work space. The bridge girder can be bridged reliably and in a short period of time even if it is not in the upward direction.

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

【図1】本発明において橋桁側面用ブロックの施工状態
を示す構成説明図(その1)である。
FIG. 1 is a configuration explanatory view (part 1) showing a construction state of a bridge girder side block in the present invention.

【図2】本発明において橋桁側面用ブロックの施工状態
を示す構成説明図(その2)である。
FIG. 2 is a configuration explanatory view (part 2) showing a construction state of a bridge girder side block in the present invention.

【図3】本発明において床版の施工状態を示す構成説明
図(その1)である。
FIG. 3 is a configuration explanatory view (part 1) showing a construction state of a floor slab in the present invention.

【図4】本発明において床版の施工状態を示す構成説明
図(その2)である。
FIG. 4 is a configuration explanatory view (part 2) showing a construction state of a floor slab in the present invention.

【図5】本発明の架橋工法概略説明図(その1)であ
る。
FIG. 5 is a schematic explanatory view (part 1) of the crosslinking method of the present invention.

【図6】本発明の架橋工法概略説明図(その2)であ
る。
FIG. 6 is a schematic explanatory view (part 2) of the crosslinking method of the present invention.

【図7】本発明の架橋工法概略説明図(その3)であ
る。
FIG. 7 is a schematic explanatory view (part 3) of the crosslinking method of the present invention.

【図8】本発明の架橋工法概略説明図(その4)であ
る。
FIG. 8 is a schematic explanatory view (part 4) of the crosslinking method of the present invention.

【図9】従来例の構成説明図(その1)である。FIG. 9 is an explanatory diagram (part 1) of a configuration of a conventional example.

【図10】従来例の構成説明図(その2)である。FIG. 10 is a diagram (part 2) illustrating the configuration of a conventional example.

【図11】従来例の構成説明図(その3)である。FIG. 11 is an explanatory diagram (part 3) of a configuration of a conventional example.

【図12】従来例の構成説明図(その4)である。FIG. 12 is an explanatory diagram (part 4) of a configuration of a conventional example.

【図13】従来例の構成説明図(その5)である。FIG. 13 is a configuration explanatory view (part 5) of a conventional example.

【符号の説明】[Explanation of symbols]

1 橋脚 2 河川 3 橋桁 4 橋桁架設機 5 移動台車 6 吊り具 7 橋脚側面用ブロック 8 橋桁側面主桁 9 床版施工用型枠 10 床版 11 型枠台車 12 保持腕 13 型枠本体 14 吊り体 30 支保工 31 型枠 32 手延機 33 支持桁 34 吊り門型 35 吊り装置 DESCRIPTION OF SYMBOLS 1 Bridge pier 2 River 3 Bridge girder 4 Bridge girder erection machine 5 Moving trolley 6 Hanging tool 7 Bridge pier side block 8 Bridge girder side main girder 9 Floor slab construction form 10 Floor slab 11 Form trolley 12 Holding arm 13 Form body 14 Hanging body DESCRIPTION OF SYMBOLS 30 Shoring 31 Formwork 32 Hand roll machine 33 Supporting girder 34 Hanging gate type 35 Hanging device

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 既設の橋脚(1,1)間に跨って橋桁架
設機(4)を架設し、該橋桁架設機(4)上には橋桁架
設機長手方向に移動可能な吊り具付き移動台車(5)を
載置し、前記吊り具(6)にはあらかじめ形成された橋
桁側面用ブロック(7)を取り付けて、既設の橋桁
(1,1)間に順次運搬し、 前記運搬した複数の橋桁側面用ブロック(7)を接続し
て一方側の側面主桁(8)を構成して既設の橋脚(1,
1)間に架設すると共に、橋脚幅方向一方側にスライド
させて配置し、 次いで、他方側の側面主桁(8)も同様にして接続し、
構成、架設すると共に、一方側の側面主桁(8)と間隔
をあけて橋脚幅方向他方側にスライドさせて配置してな
り、 前記両側面主桁(8,8)間の空間には両主桁を接続す
る橋桁床版(10)をコンクリート打設して構成したこ
とを特徴とする橋桁の架橋工法
1. A bridge girder erection machine (4) is erected between existing piers (1, 1), and is mounted on the bridge girder erection machine (4) with a hanger movable in the longitudinal direction of the bridge girder erection machine. A truck (5) is placed, a pre-formed bridge girder side block (7) is attached to the hoisting tool (6), and the bridge is sequentially transported between the existing bridge girders (1, 1). The bridge girder side block (7) is connected to form a side main girder (8) on one side, and the existing pier (1,
1) While being erected between them, they are slid to one side in the bridge pier width direction and arranged, and then the other side main girder (8) is connected in the same manner.
The main girder (8, 8) is slid to the other side in the width direction of the pier with an interval from the main girder (8) on one side. A method of bridging a bridge girder, wherein a bridge girder slab (10) for connecting a main girder is cast in concrete.
【請求項2】 既設の橋脚(1,1)間に跨って橋桁架
設機(4)を架設し、該橋桁架設機(4)上には橋桁架
設機長手方向に移動可能な吊り具付き移動台車(5)を
載置し、前記吊り具(6)にはあらかじめ形成された橋
桁側面用ブロック(7)を取り付けて、既設の橋桁
(1,1)間に順次運搬し、 前記運搬した複数の橋桁側面用ブロック(7)を緊密接
続して一方側の側面主桁(8)を構成して既設の橋脚
(1,1)間に架設すると共に、橋脚幅方向一方側にス
ライドさせて配置し、 次いで、他方側の側面主桁(8)も同様にして緊密接続
し、構成、架設すると共に、一方側の側面主桁(8)と
間隔をあけて橋脚幅方向他方側にスライドさせて配置し
てなり、 前記両側面主桁(8,8)間の空間には両主桁を緊密接
続する橋桁床版(10)をコンクリート打設して構成し
たことを特徴とする橋桁の架橋工法
2. A bridge girder erection machine (4) is erected between existing piers (1, 1), and is mounted on the bridge girder erection machine (4) with a hanger movable in the longitudinal direction of the bridge girder erection machine. A truck (5) is placed, a pre-formed bridge girder side block (7) is attached to the hoisting tool (6), and the bridge is sequentially transported between the existing bridge girders (1, 1). The side girder blocks (7) are tightly connected to form one side main girder (8), which is installed between the existing piers (1, 1), and is slid to one side in the pier width direction. Then, the other side main girder (8) is similarly tightly connected, constructed and erected, and slid to the other side in the bridge pier width direction at an interval from the one side main girder (8). In the space between the main girders (8, 8) on both sides, a bridge girder slab (1) that tightly connects both main girders is provided. Bridge construction method of a bridge girder, wherein the bridge girder is constructed by placing concrete in 0)
【請求項3】 既設の橋脚(1,1)間に跨って橋桁架
設機(4)を架設し、該橋桁架設機(4)上には橋桁架
設機長手方向に移動可能な吊り具付き移動台車(5)を
載置し、前記吊り具(6)にはあらかじめ形成された橋
桁側面用ブロック(7)を取り付けて、既設の橋桁
(1,1)間に順次運搬し、 前記運搬した複数の橋桁側面用ブロック(7)を緊密接
続して一方側の側面主桁(8)を構成して既設の橋脚
(1,1)間に架設すると共に、橋脚幅方向一方側にス
ライドさせて配置し、 次いで、他方側の側面主桁(8)も同様にして緊密接続
し、構成、架設すると共に、一方側の側面主桁(8)と
間隔をあけて橋脚幅方向他方側にスライドさせて配置し
てなり、 前記両側面主桁(8,8)間の空間には両主桁を緊密接
続する橋桁床版(10)をコンクリート打設して構成し
てあり、 前記橋桁床版(10)の形成は、前記橋桁架設機(4)
上に移動可能に載置した型枠台車(11)から吊り下げ
た回動式の型枠(9)で前記両主桁間を塞ぎ、その上に
コンクリートを打設したことを特徴とする橋桁の架橋工
法。
3. A bridge girder erection machine (4) is erected between the existing piers (1, 1), and is mounted on the bridge girder erection machine (4) with a hanger movable in the longitudinal direction of the bridge girder erection machine. A truck (5) is placed, a pre-formed bridge girder side block (7) is attached to the hoisting tool (6), and the bridge is sequentially transported between the existing bridge girders (1, 1). The side girder blocks (7) are tightly connected to form one side main girder (8), which is installed between the existing piers (1, 1), and is slid to one side in the pier width direction. Then, the other side main girder (8) is similarly tightly connected, constructed and erected, and slid to the other side in the bridge pier width direction at an interval from the one side main girder (8). In the space between the main girders (8, 8) on both sides, a bridge girder slab (1) that tightly connects both main girders is provided. 0) is constructed by casting concrete, and the bridge girder slab (10) is formed by the bridge girder erection machine (4).
A bridge girder, wherein the space between the two main girders is closed by a rotatable form (9) suspended from a form carrier (11) movably mounted thereon, and concrete is cast thereon. Cross-linking method.
JP9012278A 1997-01-27 1997-01-27 Method for bridging bridge girder Pending JPH10204830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9012278A JPH10204830A (en) 1997-01-27 1997-01-27 Method for bridging bridge girder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9012278A JPH10204830A (en) 1997-01-27 1997-01-27 Method for bridging bridge girder

Publications (1)

Publication Number Publication Date
JPH10204830A true JPH10204830A (en) 1998-08-04

Family

ID=11800907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9012278A Pending JPH10204830A (en) 1997-01-27 1997-01-27 Method for bridging bridge girder

Country Status (1)

Country Link
JP (1) JPH10204830A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013129991A (en) * 2011-12-21 2013-07-04 Shimizu Corp Installation method for tunnel lined concrete
CN110258348A (en) * 2019-07-16 2019-09-20 重庆建工集团股份有限公司 The single width sliding rail of Bridge Erector cooperates the multi-functional middle traversing jib lubbing mechanism of supporting leg walking
JP2021092025A (en) * 2019-12-06 2021-06-17 五洋建設株式会社 Openable/closable timbering and using method of openable/closable timbering
CN113136801A (en) * 2021-03-18 2021-07-20 长江武汉航道工程局 Mounting method of T-shaped beam
CN113735009A (en) * 2021-09-08 2021-12-03 武汉船舶职业技术学院 Bridge machine for lifting prefabricated part

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013129991A (en) * 2011-12-21 2013-07-04 Shimizu Corp Installation method for tunnel lined concrete
CN110258348A (en) * 2019-07-16 2019-09-20 重庆建工集团股份有限公司 The single width sliding rail of Bridge Erector cooperates the multi-functional middle traversing jib lubbing mechanism of supporting leg walking
JP2021092025A (en) * 2019-12-06 2021-06-17 五洋建設株式会社 Openable/closable timbering and using method of openable/closable timbering
CN113136801A (en) * 2021-03-18 2021-07-20 长江武汉航道工程局 Mounting method of T-shaped beam
CN113136801B (en) * 2021-03-18 2023-01-24 长江武汉航道工程局 Mounting method of T-shaped beam
CN113735009A (en) * 2021-09-08 2021-12-03 武汉船舶职业技术学院 Bridge machine for lifting prefabricated part

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