JPS62206161A - Moving type mold frame construction method of high bridge slab - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は、鉄道、道路等の高架橋スラブを連続的に打設
することのできる高架橋スラブの移動式型枠工法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a method for constructing movable formwork for elevated bridge slabs, which can continuously cast elevated slabs for railways, roads, etc.

「従来の技術」 コンクリート高架橋等の工事は、殆ど同じ形状の構造物
を連続的に構染する工事であるため、その型枠施工にお
いては、工事の省力化と能率化の上から、移動式型枠に
よる工法が採用されるようになってきた。``Conventional technology'' Since the construction of concrete viaducts involves continuous construction of structures of almost the same shape, in order to save labor and improve efficiency of the construction, mobile type Construction methods using formwork have come to be adopted.

この種移動式型枠工法は、例えば特公昭５６−３７３６
３号公報に示されているように、支保工を組んでその上
に型枠を組立て、その型枠の移動を門型クレーン等のよ
うな大型なりレーンを使って行うようにしている。その
ため、特別大きなりレーンを設置しなければならないぽ
かりでなく、そのクレーンの設置や移動のために広い専
用敷地が必要となり、経費も増大する。また、山間部や
橋脚が非常に高い場合には、大型クレーンの設置が極め
て困難となるので、そのような工事においては移動式の
型枠を使用することができず、旧来の手組み、手払いに
よる非能率で多くの人手を要する型枠施工にならざるを
得ないという実情である。This type of mobile formwork construction method is known, for example, from the Japanese Patent Publication No. 56-3736.
As shown in Publication No. 3, shoring is erected and a formwork is assembled on it, and the formwork is moved using a large lane such as a portal crane or the like. Therefore, it is not only necessary to install a special large lane, but also a large dedicated site is required to install and move the crane, which increases costs. In addition, in mountainous areas or when the piers are very high, it is extremely difficult to install large cranes, so mobile formwork cannot be used for such construction, and traditional hand-building and hand-building methods are not possible. The reality is that the formwork construction is inefficient and requires a lot of manpower.

［発明が解決しようとする問題点」 本発明者は、この種移動式型枠による工法の問題点を解
決するため、さきに、特開昭５８−９４５０４号公報に
示すような、型枠を走行移動させるようにした工法の開
発を行ってきた。[Problems to be Solved by the Invention] In order to solve the problems of this type of construction method using movable formwork, the present inventor first developed a formwork as shown in Japanese Patent Application Laid-Open No. 58-94504. We have been developing a construction method that allows the vehicle to be moved while traveling.

本発明は、前記の発明を更に改前することにより、施工
の経済性を一層向上させると共に、作業の容易性と安全
性と能率性とを高めることができ、更には使用する型枠
装置の軽量化とコストの低減が図れる新たな型枠工法を
提供しようとするものである。By further improving the above-mentioned invention, the present invention can further improve the economic efficiency of construction, improve the ease of work, safety, and efficiency, and further improve the formwork equipment used. The aim is to provide a new formwork construction method that can reduce weight and cost.

［問題点を解決するための手段］ 本発明の移動式型枠工法を、実施例に対応する図面を参
照して説明すると、本発明は、高架橋スラブ２の長さ方
向に所定の間隔をおいて列設した橋脚１．１′に、該橋
脚１．１′に取付けのブラケット３，３を介して該スラ
ブ２の巾方向に沿った型枠横動用レール４，４を架設す
ると共に、各橋脚１，１の外面側に、上面にローラ６．
６を設けたブラケット５を高架橋スラブ２の長さ方向に
隔設し、このローラ６．６上に、可動支持桁７を該スラ
ブ２の長さ方向に滑動自在に架設し、他方、高架橋スラ
ブ２の巾の数分割巾に形成した型枠体１１を昇降調節自
在に設けると共に、型枠ｍ動用レール４上を走行できる
車輪９，９を設けた走行型枠装置Ａを構成し、該走行型
枠装置Ａの複数個を前記の型枠横動用レール４上にその
車輪９を介して載架搬入して並置し、各走行型枠装置Ａ
をジヤツキ１５の伸縮操作により型枠横動用レール４上
に車輪９に代わり台座１６を介して支持させ、型枠体上
にスラブコンクリートを打設し、該コンクリートの硬化
後、走行型枠装置Ａの型枠体１１をコンクリートより剥
離、降下させて、ツヤツキ１５の伸縮操作により台座１
６を除去して走行型枠装置Ａを型枠横動用レール４上に
車輪９を介して支持させ、各走行型枠装置Ａを前記型枠
横動用レール４上を移動させて、前記可動支持桁７の型
枠継動用レール８，８上に載置した台車２０−ヒに移乗
させ、各走行型枠装置Ａを台車２０によＱｌｌｊ’ｉ次
つぎの施工橋脚１，１間に走行移動させ、該橋脚１，１
間の型枠横動用レール４，４上に移乗させて走行、搬入
することを特徴とするものである。[Means for Solving the Problems] The movable formwork construction method of the present invention will be explained with reference to drawings corresponding to embodiments. Formwork lateral movement rails 4, 4 along the width direction of the slab 2 are installed on the piers 1.1' arranged in a row through brackets 3, 3 attached to the piers 1.1'. On the outer surface side of the piers 1, 1, there is a roller 6 on the upper surface.
Brackets 5 provided with brackets 6 are spaced apart in the length direction of the viaduct slab 2, and on the rollers 6.6, a movable support girder 7 is installed so as to be slidable in the length direction of the slab 2. A traveling formwork device A is constructed in which a formwork body 11 formed to have a width divided by several widths of 2 is provided so as to be adjustable up and down, and wheels 9, 9 are provided that can run on rails 4 for moving the formwork m. A plurality of formwork apparatuses A are mounted and placed side by side on the formwork lateral movement rail 4 via their wheels 9, and each traveling formwork apparatus A is
is supported on the formwork lateral movement rail 4 via the pedestal 16 instead of the wheels 9 by the expansion and contraction operation of the jack 15, slab concrete is placed on the form body, and after the concrete hardens, the traveling formwork device A Peel off the formwork body 11 from the concrete, lower it, and expand and contract the pedestal 1 by the gloss 15.
6 is removed and the traveling formwork device A is supported on the formwork lateral movement rail 4 via wheels 9, and each traveling formwork device A is moved on the formwork lateral movement rail 4 to support the movable formwork device A. Transfer it to the trolley 20-H placed on the formwork joint rails 8, 8 of the girder 7, and move each traveling formwork device A by the trolley 20 between the next construction piers 1, 1. , the piers 1, 1
It is characterized in that it is moved and transported on the formwork lateral movement rails 4, 4 between them.

［実施例Ｊ 以下、本発明の実施例について図面を参照して説明する
。[Embodiment J] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図において１，１′は施工する高架橋スラブ２の巾方向
に所定の間隔をおいて列設された橋脚で、この一対の橋
脚１１１′は高架橋スラブ２の長さ方向に、はぼ等間隔
をおいて列設されており、それら橋脚１．１′、１，１
　′・・・・・・の上に高架橋スラブ２を構築するので
ある。この高架橋スラブ２は、その横断面からみると、
一般的には、橋脚１．１′問にある中央部分ａと、その
両側にあって橋脚１．１′より外方に突出した張出部分
ｂ　、ｂとが連続した形となっている（第１図参照）。In the figure, 1 and 1' are piers arranged in a row at predetermined intervals in the width direction of the viaduct slab 2 to be constructed, and this pair of piers 111' are arranged at approximately equal intervals in the length direction of the viaduct slab 2. These piers 1.1', 1,1
'..., the viaduct slab 2 will be constructed on top of it. This viaduct slab 2, when viewed from its cross section,
Generally, a central portion a located at the pier 1.1' is continuous with overhanging portions b and b located on both sides of the central portion a and projecting outward from the pier 1.1'. (See Figure 1).

本発明の実施例は、このような高架橋スラブ２の施工を
例として説明するが、しかし、本発明は、前記の張出部
分ｂ　、ｂを持たないような高架橋スラブの施工にも適
用可能である。The embodiments of the present invention will be explained by taking the construction of such a viaduct slab 2 as an example, but the present invention is also applicable to the construction of a viaduct slab that does not have the above-mentioned overhanging portions b and b. be.

高架橋スラブ２の巾方向に立設された各村の橋脚１，１
′の隣の対の橋脚１，１　′との対向面側、即ち橋脚１
，１　′のスラブ２の巾方向に沿う側面の上部には、そ
れぞれブラケット３゜３を取付け、その上に高架橋スラ
ブ２の巾方向に沿って長く形成した型枠横動用レール４
．４を架設する。このレール４は、その一端は橋脚１の
外端で終わっているが、他端は他方の橋脚１　′の外端
より突出し、高架橋スラブ２の張出部分すの外端近くま
で延長されている。なお、この型枠横動用レール４は、
図示のようにＩ形鋼自体を適用してもよく、或は■形鋼
の上に別途レールを敷設したものでもよい。また、各村
の橋脚の一方の橋脚１，１の外面側にも、前記のブラケ
ット３より低い位置にそれぞれブラケット５．５が取付
けられ、各ブラケット５，５の上面には、スラブ２の巾
方向に沿う軸回りに回動自在としだローラ６．６が設け
られている。Piers 1 and 1 of each village erected in the width direction of the viaduct slab 2
The side opposite to the pair of piers 1 and 1 ′, that is, the pier 1
, 1', brackets 3°3 are attached to the upper portions of the sides along the width direction of the slab 2, respectively, and on top of the brackets 3, rails 4 for formwork lateral movement formed long along the width direction of the viaduct slab 2 are installed.
．． Erection 4. One end of this rail 4 ends at the outer end of the pier 1, but the other end protrudes from the outer end of the other pier 1' and extends to near the outer end of the overhanging portion of the viaduct slab 2. . In addition, this formwork lateral movement rail 4 is
As shown in the figure, the I-beam itself may be used, or a rail may be separately laid on the I-beam. In addition, brackets 5.5 are installed on the outer surface of one of the piers 1, 1 in each village at a lower position than the bracket 3, and the width of the slab 2 is attached to the upper surface of each bracket 5, 5. An opening roller 6.6 is provided which is rotatable about an axis along the direction.

そして、それらローラ６．６の上には、スラブ２の良さ
方向に列設した橋脚１，１・・・・・・間の２倍以上の
長さを有する可動支持桁７がスラブ２の＆さ方向に滑動
自在に載架されており、この可動支持桁７の上面には全
長にわたり縦動用レール８．８が形成されている。なお
、このレール１冒よ図示のように可動支持桁７に使用の
■形鋼の上面をそのまま適用することができる。また、
前記のローラ６を設けたブラケット５は必ずしも橋脚１
に取付けなくてよく、例えば地上より組み上げた支保工
等に取付けるようにしてもよい。この場合、各ローラ６
．６の間隔は各橋脚１，１の間隔より短くてもよく、高
架橋スラブ２の長さ方向に隔設されていればよい。On top of these rollers 6.6, there are movable support girders 7 with a length more than twice the length between the piers 1, 1, . . . arranged in the longitudinal direction of the slab 2. The movable support girder 7 is mounted so as to be slidable in the horizontal direction, and a longitudinal rail 8.8 is formed on the upper surface of the movable support girder 7 over its entire length. Incidentally, as shown in the figure for this rail 1, the upper surface of the section steel used for the movable support girder 7 can be applied as is. Also,
The bracket 5 provided with the roller 6 is not necessarily attached to the pier 1.
For example, it may be attached to a support constructed from the ground. In this case, each roller 6
．． The interval 6 may be shorter than the interval between the piers 1, 1, and it is sufficient if they are spaced apart in the length direction of the viaduct slab 2.

Ａ、Ａ・・・・・・はそれぞれ対向して架設された型枠
横動用レール４，４間に載架する走行型枠装置で、各同
様に形成されており、断面方形状をなした架台１０の両
端部下面に前記の型枠横動用レール４に係合して走行で
きる車輪９．９が着脱自在に設けられ、また架台１０の
上面部には、バフ材にせき板を取付けた型枠体１１が、
架台１０に上下動調節自在に設けた調節ポル）１２．１
２により昇降自在に設けられた構造となっている。A, A... are traveling formwork devices mounted between formwork lateral movement rails 4, 4 installed opposite to each other, each of which is similarly formed and has a rectangular cross section. Wheels 9.9 that can run while engaging with the formwork lateral movement rails 4 are detachably provided on the lower surface of both ends of the pedestal 10, and a weir plate is attached to the buffing material on the upper surface of the pedestal 10. The form body 11 is
12.1 (Adjustment pole provided on the pedestal 10 so that it can be adjusted vertically)
2, it has a structure that allows it to be raised and lowered freely.

このようにＩｌｌを成した走行型枠装置Ａｙ　Ａ・・・
・・・は、第１図、及Ｖ第５図（イ）に示すように、列
設の橋脚１．１’、１．１’間を施工の単位区間として
、それらの橋脚１，１′に架設されて対向する型枠横動
用レール４，４上に車輪９ｆ９を介して載架し、レール
４，４上を所定の位置まで走行移動して並列させる。つ
いで、第５図（ロ）のように、架台ｌＯとレール４との
間にジヤツキ１５．１５を介入し、ジヤツキ１５の伸長
により架台１０を扛上して車輪９，９を取外し、それに
代わってレール４上に台座１６．１６を載置し、第５図
の（ハ）のように、ジヤツキ１５を短縮してその台座１
６．１６上に架台１０を降下して支持させる。In this way, the traveling formwork device Ay A...
..., as shown in Figure 1 and Figure 5 (a), the unit section of construction is between the piers 1.1' and 1.1' installed in a row, and those piers 1, 1' The molds are mounted via wheels 9f9 on rails 4, 4 for horizontal movement of the formwork, which are constructed on the rails 4, 4 facing each other, and are moved on the rails 4, 4 to a predetermined position to be arranged in parallel. Next, as shown in FIG. 5(b), a jack 15.15 is inserted between the pedestal lO and the rail 4, and the pedestal 10 is lifted up by the extension of the jack 15, and the wheels 9, 9 are removed. Place the pedestal 16.16 on the rail 4, shorten the jack 15, and place the pedestal 16 on the rail 4, as shown in FIG.
6. Lower the pedestal 10 onto 16 and support it.

そして、第２図、第５図（ニ）及び第６図のように型枠
体１１を調節ポル）１２．１２の調節で所定の高さ位置
にセットする。Then, as shown in FIGS. 2, 5 (D), and 6, the form body 11 is set at a predetermined height position by adjusting the adjustment poles 12 and 12.

また、可動支持桁７上には、所要高さの支保工１３（第
２図参照）を介して、高架橋スラブ２の一方の張出部分
すの下側にあてる張出型枠体１４を架設すると共に、他
方の張出部分すの下側け＾−ｍ１ヂ・舎杆坤１油￥贋Ａ
の刑油伏１１卜ｔニムーこの張出部分すの下側にあてる
張出型枠体１４を架設する。In addition, on the movable support girder 7, an overhanging formwork 14 is erected to be applied to the lower side of one overhanging part of the viaduct slab 2 via a support 13 of a required height (see Fig. 2). At the same time, lower the other overhanging part.
An overhang form frame 14 is erected on the underside of this overhang.

次に、それら型枠体１１．１１．１４．１４の上に高架
橋スラブ２の鉄筋を組立てコンクリートを打設する。コ
ンクリートの硬化後は、支保工１３及びその上の型枠体
１４を取除くと共に、各走行型枠装置Ａの調節ポル）１
２．１２を操作して型枠体１１、１４をコンクリートよ
り剥離、降下させ、ついで再びジヤツキ１５．１５を架
台１０とレール４との間に介入して、前記同様の操作に
より、架台１０を車輪９，９を介してレール４，４上に
支持させる　（第５図（イ）参照）。Next, reinforcing bars for the viaduct slab 2 are assembled on top of the form bodies 11, 11, 14, and 14, and concrete is poured. After the concrete has hardened, the shoring 13 and the formwork body 14 on it are removed, and the adjustment poles of each traveling formwork device A)1
2.12 is operated to separate and lower the formwork bodies 11 and 14 from the concrete, and then the jack 15.15 is again intervened between the pedestal 10 and the rail 4, and the pedestal 10 is removed by the same operation as described above. It is supported on rails 4, 4 via wheels 9, 9 (see Fig. 5 (a)).

そして、第３図のように、支持桁７のレール８．８上に
、型枠横動用レール４と乎行な載置レール１７に前記の
レール８，８上を走行できる車輪ｔｓ、　ｉｓを高さ調
節装置１９を介して取付けた台車２０を載置して、その
レール１７の延長上に位置させると共に、そのレール１
７の高さを高さ調節装置１９の調節によりレール４の高
さに合わせる。次に、各走行型枠装置Ａ、Ａをその支持
桁７に近いものを、型枠横動用レール４．・を上を走行
させて、第・を図のように、その車輪９，９を台車２０
のレール１７上に移乗、載置させる。Then, as shown in FIG. 3, on the rails 8 and 8 of the support girder 7, wheels ts and is that can run on the rails 8 and 8 are mounted on the mounting rail 17 that is parallel to the formwork lateral movement rail 4. The trolley 20 attached via the height adjustment device 19 is placed on the extension of the rail 17, and the rail 1
7 is adjusted to match the height of the rail 4 by adjusting the height adjusting device 19. Next, move each of the traveling formwork devices A, A closer to its support girder 7 to the formwork lateral movement rail 4. Run the ・ on the top of the ・ and move the wheels 9, 9 to the trolley 20 as shown in the figure.
transfer and place it on the rail 17 of.

続いて、台車２０．２０上に釆った走行型枠装置Ａを押
進し、第７図に示すように、支持桁７上を走行させ、次
の施工区間である橋脚１．１間に移動し、台車２０のレ
ール１７．１７を次の区間の橋脚に取付けた型枠横動用
レール４，４に合致させ、その走行型枠装置Ａを同レー
ル４，４上に移乗させて、次の橋脚１．１間に走行搬入
し載架するのである。Next, the traveling formwork device A mounted on the bogie 20.20 is pushed forward, and as shown in FIG. Then, the rails 17 and 17 of the bogie 20 are aligned with the formwork lateral movement rails 4, 4 attached to the piers of the next section, and the traveling formwork device A is transferred onto the same rails 4, 4, and the next section is moved. It will be carried in between the piers 1.1 and placed on the bridge.

このようにして走行型枠装置Ａの移動が終えたなら、台
車２０．２０を元の位置に戻して次の走行型枠装置Ａを
台車２０．２０上に移乗させ、同様にして次の橋脚１，
１間に挿入架設し、上述の作業を繰り返して走行型枠装
置Ａ、Ａ・・・・・・のすべでの移動を終えるのである
０次いで、可動支持桁７を各ブラケット５，５のローラ
６．６上を滑動させて、更に次の径間に走行型枠装置Ａ
。When the movement of the traveling formwork device A is completed in this way, the cart 20.20 is returned to its original position, the next traveling formwork device A is transferred onto the cart 20.20, and the next pier is moved in the same manner. 1,
The movable support girder 7 is then inserted between the rollers of each bracket 5, and the above-mentioned work is repeated to complete the movement of the traveling formwork devices A, A... 6.6 Slide the top and then move the traveling formwork device A to the next span.
.

Ａ・・・・・・を移動させるための準備を終える。そし
て、各型枠体１１．１１．１４．１４及び支保工１３を
所定の位置にセットし、スラブ２の鉄筋組立、コンクリ
ート打設へと進める。Preparations for moving A... are completed. Then, each formwork body 11, 11, 14, 14 and the support 13 are set in a predetermined position, and the reinforcing bars of the slab 2 are assembled and concrete is poured.

以上の方法を繰返すことにより、多径間の高架橋スラブ
２の施工を順次行うことができる。By repeating the above method, construction of multi-span viaduct slabs 2 can be performed sequentially.

なお、本実施例においては、可動支持桁７を橋脚１の外
面側だけに架設するようにしているが、この可動支持桁
７は他方の橋脚１′の外面側にも架設することもできる
。そのようにすれば、高架橋スラブの巾が非常に大きな
場合等において好適であり、施工能率を高めることがで
きる。In this embodiment, the movable support girder 7 is installed only on the outer surface of the pier 1, but the movable support girder 7 can also be installed on the outer surface of the other pier 1'. This is suitable in cases where the width of the viaduct slab is very large, and construction efficiency can be increased.

また、走行型枠装置Ａを昇降させるジヤツキ１５は架台
１０に装着したままであってもよく、更に、車輪９ら前
記実施例のように着脱自在とせず、固定式にしてもよく
、その場合、台座１６は車輪９に隣接して介在させれば
よい。Further, the jacks 15 for raising and lowering the traveling formwork device A may remain attached to the frame 10, and furthermore, the wheels 9 may not be detachable as in the above embodiment, but may be fixed. , the pedestal 16 may be interposed adjacent to the wheel 9.

「発明の効果」 以上説明したように、本発明工法は、列設した各ｖ４ｎ
に、高架橋スラブの巾方向に沿う型枠移動用レールを架
設すると共に、高架橋スラブの長さ方向にわたる可動支
持桁を架設し、該スラブの巾の数分割巾に形成した走行
型枠装置を橋脚間の型枠横動用レール上に並列載架して
スラブコンクリートを打設し、該コンクリートの硬化後
は、各走行型枠装置を型枠横動用レール上を走行移動さ
せて、可動支持桁上を走行できる台車上に移乗させ、台
車の走行により走行型枠装置を次の施工橋脚間に移動さ
せて、該橋脚間の型枠横動用レール上に載せて所定の位
置に　４走行搬入するようにしたので、施工橋脚間にセ
ットするスラブの型枠は、施工の単位区間である橋脚間
での施工の都度、組立て解体をすることなく移動するこ
とができ、しかも、その移動はすべて走行によるため、
移動のためのクレーンの設置も必要なく、そして、型枠
装置は分割中の小型、軽量であるため、走行移動は容易
、安全で能率よく行うことができる。＊た、走行型枠装
置は、その移動時だけに車輪を使用し、コシ　／７　　
ＩＩ　　−Ｌ　　Ｉｆｌ　　灯ｉ）賎　Ｌ啼　！＋　４
う　ロＩｔ、イト　―　　づ−古左匁　す　１ようにし
たので、車輪も型枠装置の移動時の荷重に耐えるだけの
ものでよいため、簡易、安価なものとすることができ、
型枠移動用車輪の経費も節減することができる。更に、
型枠装置を縦動させる支持桁はスラブの長さ方向に滑動
するようにしたので、施工区間毎に支持桁を設置するこ
となく、支持桁架設の経費や労力が軽減できる等、多く
の優れた効果を有するものである。"Effects of the Invention" As explained above, the construction method of the present invention is effective for each v4n installed in a row.
At the same time, a rail for moving formwork along the width direction of the viaduct slab was erected, and a movable support girder was erected along the length direction of the viaduct slab, and a traveling formwork device formed with a width divided by several parts of the width of the slab was installed on the bridge piers. Slab concrete is poured by placing the formwork in parallel on the rails for lateral movement of the formwork between them, and after the concrete has hardened, each traveling formwork device is moved on the rail for lateral movement of the formwork and placed on the movable support girder. The formwork device is transferred to a trolley that can travel, and the traveling formwork device is moved between the next construction piers by the travel of the trolley, and the formwork is placed on the formwork lateral movement rail between the piers and transported to a predetermined position four times. As a result, the slab formwork set between the piers can be moved without assembly and disassembly every time construction is performed between the piers, which is a unit section of construction, and all movement is done by traveling. For,
There is no need to install a crane for movement, and since the formwork device is small and lightweight during division, traveling and movement can be carried out easily, safely and efficiently. *In addition, the traveling formwork equipment uses wheels only when moving it, making it stiffer /7
II -L Ifl light i) 賎L啼! +4
1. Since the wheels only need to withstand the load during movement of the formwork device, they can be made simple and inexpensive.
The cost of wheels for moving the formwork can also be saved. Furthermore,
The support girders that move the formwork vertically are designed to slide in the length direction of the slab, so there are many advantages such as reducing the cost and labor of erecting support girders without having to install support girders for each construction section. It has the following effects.

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

図面は本発明工法の一実施例を略示したもので、第１図
は橋脚間に走行型枠装置を搬入並列した状態を示す正断
面図、第２図は高架橋スラブの型枠をセットした状態を
示す正断面図、第３図は型枠を剥離し、支持桁上に台車
を載置したところを示す正断面図、第４図は台車上に走
行型枠装置を移乗させたところを示す正断面図、第５図
（イ）〜（ニ）は走行型枠装置の搬入から型枠セット時
までの作業順序を示す正面図、ｆｊ＆６図は走行型枠ｉ
置及び支持桁の架設状態を示す側面図、第７図は走行型
枠装置を台車に移乗させて次の橋脚間に移乗させたとこ
ろを示す側面図である。 Ａ・・・走行型枠装置　　　１，１′・・・橋脚２・・
・高ｉＲ橋スラブ　　　３．５・・・ブラケット４・・
・型枠横動用レール　７・・・可動支持桁８・・・型枠
継動用レール　１０・・・・・・架台９・・・・・・車
輪　　　　　　１１．１４・・・型枠体１２・・・調節
ボルト１３・・・・・・支保工１５・・・ツヤ・ンキ　
　　　　１６・・・・・・台座１７・・・載置レール　
　　　１８・・・・・・車輪１９・・・高さ調節装置　
　　２０・・・・・・台車第５図The drawings schematically show one embodiment of the construction method of the present invention. Figure 1 is a front cross-sectional view showing the state in which traveling formwork devices are carried in and paralleled between bridge piers, and Figure 2 is a cross-sectional view showing the formwork of the viaduct slab set. Figure 3 is a front cross-sectional view showing the state, with the formwork peeled off and the trolley placed on the support girder, and Figure 4 is a front cross-sectional view showing the trolley mounted on the trolley. Figures 5(a) to 5(d) are front views showing the work order from carrying in the traveling formwork device to setting the formwork, and Figures fj & 6 are the traveling formwork i.
FIG. 7 is a side view showing the traveling formwork device being transferred to a trolley and being transferred between the next piers. A... Traveling formwork device 1, 1'... Pier 2...
・High iR bridge slab 3.5...Bracket 4...
・Rail for lateral movement of formwork 7... Movable support girder 8... Rail for formwork connection 10... Frame 9... Wheels 11.14... Formwork body 12...・Adjustment bolt 13...Shoring 15...Glossy/Nki
16... Pedestal 17... Mounting rail
18...Wheel 19...Height adjustment device
20... Trolley Figure 5

Claims (1)

【特許請求の範囲】[Claims] 高架橋スラブの長さ方向に所定の間隔をおいて列設した
橋脚に、該橋脚に取付けのブラケットを介して該スラブ
の巾方向に沿った型枠横動用レールを架設すると共に、
各橋脚の外面側に、上面にローラを設けたブラケットを
高架橋スラブの長さ方向に隔設し、このローラ上に、可
動支持桁を該スラブの長さ方向に滑動自在に架設し、他
方、高架橋スラブの巾の数分割巾に形成した型枠体を昇
降調節自在に設けると共に、型枠横動用レール上を走行
できる車輪を設けた走行型枠装置を構成し、該走行型枠
装置の複数個を前記の型枠横動用レール上にその車輪を
介して載架搬入して並置し、各走行型枠装置をジャッキ
の伸縮操作により型枠横動用レール上に車輪に代わり台
座を介して支持させ、型枠体上にスラブコンクリートを
打設し、該コンクリートの硬化後、走行型枠装置の型枠
体をコンクリートより剥離、降下させてジャッキの伸縮
操作により台座を除去して走行型枠装置を型枠横動用レ
ール上に車輪を介して支持させ、各走行型枠装置を前記
型枠横動用レール上を移動させて、前記可動支持桁の型
枠継動用レール上に載置した走行台車上に移乗させ、各
走行型枠装置を走行台車により順次つぎの施工橋脚間に
走行移動させ、該橋脚間の型枠横動用レール上に移乗さ
せて走行、搬入することを特徴とする高架橋スラブの移
動式型枠工法。A formwork lateral movement rail is erected along the width direction of the slab via brackets attached to the piers arranged at predetermined intervals in the length direction of the viaduct slab, and
On the outer surface of each pier, brackets having rollers on the upper surface are installed at intervals in the length direction of the viaduct slab, and movable support girders are installed on the rollers so as to be slidable in the length direction of the slab, and on the other hand, A traveling formwork device is constructed in which a formwork body formed to have a width divided by several parts of the width of the viaduct slab is provided so as to be adjustable up and down, and wheels capable of running on rails for lateral movement of the formwork are provided, and a plurality of the traveling formwork devices are provided. The pieces are carried on racks and placed side by side on the formwork lateral movement rails via their wheels, and each traveling formwork device is supported on the formwork lateral movement rails via a pedestal instead of wheels by extending and contracting the jack. After the concrete has hardened, the formwork of the traveling formwork device is peeled off from the concrete and lowered, and the pedestal is removed by the extension and contraction operation of the jack, and the traveling formwork device is installed. is supported on a formwork lateral movement rail via wheels, each traveling formwork device is moved on the formwork lateral movement rail, and is placed on the formwork coupling rail of the movable support girder. A viaduct slab characterized in that the traveling formwork devices are moved to the top of the bridge, each traveling formwork device is sequentially moved between the next construction piers by a traveling truck, and the slab is transported and transported by being transferred onto a rail for lateral movement of the formwork between the piers. mobile formwork construction method.