JP3017463B2 - Scaffolding board, hanging scaffold and temporary construction method thereof - Google Patents
Scaffolding board, hanging scaffold and temporary construction method thereofInfo
- Publication number
- JP3017463B2 JP3017463B2 JP9242577A JP24257797A JP3017463B2 JP 3017463 B2 JP3017463 B2 JP 3017463B2 JP 9242577 A JP9242577 A JP 9242577A JP 24257797 A JP24257797 A JP 24257797A JP 3017463 B2 JP3017463 B2 JP 3017463B2
- Authority
- JP
- Japan
- Prior art keywords
- scaffold
- bridge girder
- plate
- axial direction
- suspended
- 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
- Movable Scaffolding (AREA)
Description
【0001】[0001]
【発明の属する技術分野】この発明は、主に高速道路な
どの橋桁の補修や点検作業などで仮設される吊り足場、
この吊り足場に使用される足場板およびその仮設方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspended scaffold mainly used for repairing and checking bridge girders such as expressways,
The present invention relates to a scaffold plate used for the suspended scaffold and a method for temporarily attaching the scaffold.
【0002】[0002]
【従来の技術】一般に、橋や高速道路などの橋桁の補修
や点検作業では、その下が川や車道であることが多いこ
とから、地上から仮設足場を組み上げることができな
い。このため、橋桁に吊って設置する吊り足場を仮設す
ることが多い。2. Description of the Related Art In general, when repairing or inspecting a bridge girder such as a bridge or an expressway, a temporary scaffold cannot be assembled from the ground because a river or a road is often underneath. For this reason, it is often the case that a suspension scaffold suspended from a bridge girder is temporarily provided.
【0003】従来、この種の吊り足場としては、例えば
図6(a),(b) に図示するような吊り足場が一般に知られ
ている。この吊り足場は、橋桁30に吊りチェーン31を橋
桁30の軸方向に所定間隔に垂設し、この吊りチェーン3
1,31 間に架け渡して、転ばしパイプ32を橋桁30の軸方
向に所定間隔に複数設置し、この転ばしパイプ32の上に
足場板33を橋桁30の軸方向に架け渡し、さらに足場板33
の下側と両側に安全ネット34を張って構成されている。Conventionally, as this type of suspended scaffold, for example, a suspended scaffold as shown in FIGS. 6 (a) and 6 (b) is generally known. In this suspension scaffold, a suspension chain 31 is suspended from the bridge girder 30 at a predetermined interval in the axial direction of the bridge girder 30.
A plurality of rolling pipes 32 are installed at predetermined intervals in the axial direction of the bridge girder 30, and a scaffold plate 33 is bridged on the rolling pipes 32 in the axial direction of the bridge girder 30.
A safety net 34 is provided on the lower side and on both sides.
【0004】[0004]
【発明が解決しようとする課題】しかし、単管、足場
板、チェーンなどの部品からなり、いたってシンプルで
きわめて安価ではあるものの、部品を一つ一つ、クラン
プ等の連結金具で連結しながら設置していく必要がある
ため、仮設および撤去作業がきわめて煩わしく、面倒な
だけでなく危険である等の課題があった。However, although it is composed of parts such as a single pipe, a scaffold plate, and a chain, it is very simple and very inexpensive. Because of the necessity of installation, temporary installation and removal operations are extremely troublesome, and are not only troublesome but also dangerous.
【0005】この発明は、以上の課題を解決するために
なされたもので、特に安全かつ簡単に仮設および撤去で
きるようにした吊り足場板、吊り足場およびその仮設方
法を提供することを目的とする。[0005] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a suspended scaffold plate, a suspended scaffold, and a method for temporarily suspending the suspended scaffold, which can be temporarily and easily detached. .
【0006】[0006]
【課題を解決するための手段】以上の課題を解決するた
めに、この発明に係る足場板は、橋桁の軸方向の一端側
に真上に開口するフックと吊りチェーンの下端部を連結
する吊り輪環を、その反対側に前記フックと回転自在に
係合し得る係合軸をそれぞれ有して構成されている。In order to solve the above-mentioned problems, a scaffold plate according to the present invention is provided with a suspension for connecting a lower end of a suspension chain to a hook which is opened right above one end of a bridge girder in the axial direction. The ring is configured to have an engaging shaft on the opposite side thereof so as to be rotatable with the hook.
【0007】この発明に係る吊り足場は、前記足場板を
フックと係合軸とを係合し、かつ吊りチェーンで橋桁に
吊りながら橋桁の軸方向、または橋桁の軸方向および軸
直角方向の両方向に複数垂設して構成されている。In the hanging scaffold according to the present invention, the scaffold plate is engaged with a hook and an engaging shaft, and suspended in a bridge girder by a suspension chain, in both the axial direction of the bridge girder, or in both the axial direction and the direction perpendicular to the axis of the bridge girder. And a plurality of them are provided vertically.
【0008】橋桁の軸方向に隣接する足場板どうしは、
一方の足場板に回転自在に取り付けられた連結板を介し
てそれぞれ連結され、橋桁の軸直角方向に隣接する足場
板どうしは、一方の足場板に回転自在に取り付けられた
クリップによってそれぞれ挟持されている。The scaffolds adjacent to each other in the axial direction of the bridge girder are:
Scaffolding plates that are connected to each other via a connecting plate that is rotatably attached to one of the scaffolding plates, and that are adjacent to each other in a direction perpendicular to the axis of the bridge girder are respectively sandwiched by clips that are rotatably attached to the one of the scaffolding plates. I have.
【0009】さらに、この発明に係る吊り足場の仮設方
法は、各足場板をその前に垂設された足場板の先端部
に、フックと係合軸とを係合して横倒しの状態に建て付
け、この足場板と橋桁間に仮吊りチェーンまたは仮吊り
ワイヤー等の仮吊り部材を架け渡し、次に前記足場板を
橋桁の軸方向に押し倒して前に垂設された足場板と水平
に連続させ、次に前記足場板と橋桁間に吊りチェーンを
垂直に架け渡し、その後前記仮吊り部材を取り外すこと
を特徴とする。また、橋桁の軸方向と軸直角方向にそれ
ぞれ隣接する足場板どうしを連結板とクリップとによっ
てそれぞれ連結する。Further, according to the method of temporarily installing a suspended scaffold according to the present invention, each scaffold plate is built up sideways by engaging a hook and an engaging shaft with a front end portion of a scaffold plate suspended in front thereof. A temporary suspension member such as a temporary suspension chain or a temporary suspension wire is bridged between the scaffold plate and the bridge girder, and then the scaffold plate is pushed down in the axial direction of the bridge girder to be continuously horizontally connected to the scaffold plate vertically suspended before. Then, a suspension chain is vertically suspended between the scaffold plate and the bridge girder, and then the temporary suspension member is removed. Further, the scaffolds adjacent to each other in the axial direction and the direction perpendicular to the axis of the bridge girder are connected to each other by the connecting plate and the clip.
【0010】[0010]
発明の実施の形態1.図1〜図5は、この発明の実施の
一形態を示し、図において、橋桁1の下に足場板2が、
互いを橋桁1の軸方向に連結しながらそれぞれ吊りチェ
ーン3によって複数垂設することにより、複数の足場板
2からなる吊り足場Aが橋桁1の軸方向に連続して仮設
されている。Embodiment 1 of the Invention 1 to 5 show an embodiment of the present invention, in which a scaffold plate 2 is provided under a bridge girder 1.
A plurality of suspension scaffolds 2 are vertically suspended by the suspension chains 3 while being connected to each other in the axial direction of the bridge girder 1, so that the suspension scaffolds A including the plurality of scaffold plates 2 are temporarily provided continuously in the axial direction of the bridge girder 1.
【0011】足場板2は橋桁1の軸直角方向に細長い矩
形板状に構成されている。詳しくは橋桁1の軸直角方向
に2本の主桁材2aを平行に設置し、この主桁材2a,2a 間
の両端部とその内側に側桁材2bと中桁材2cを所定間隔に
複数架け渡して橋桁1の軸直角方向に細長い梯子状の枠
体2dを構成し、この枠体2dの上に床板2eを張り付けて構
成されている(図1(a) 参照)。The scaffold plate 2 is formed in a rectangular plate shape elongated in the direction perpendicular to the axis of the bridge girder 1. Specifically, two main girder members 2a are installed in parallel in the direction perpendicular to the axis of the bridge girder 1, and the side girder members 2b and the middle girder members 2c are arranged at predetermined intervals on both ends between the main girder members 2a, 2a and inside thereof. A plurality of bridges are formed to form a ladder-like frame 2d elongated in the direction perpendicular to the axis of the bridge girder 1, and a floor plate 2e is attached to the frame 2d (see FIG. 1 (a)).
【0012】主桁材2aと中桁材2cは角形鋼管から、側桁
材2bは真上に開口する溝形鋼からそれぞれ形成され、床
板2eは特に作業中のスリップ防止と軽量化を配慮してエ
ンボス鋼板や縞付きアルミ板などから形成されている。The main girder member 2a and the middle girder member 2c are formed from a square steel pipe, and the side girder members 2b are formed from a channel steel opening right above, and the floor plate 2e is particularly designed to prevent slippage and reduce weight during work. It is formed from an embossed steel plate or a striped aluminum plate.
【0013】なお、主桁材2a, 側桁材2bおよび中桁材2c
と床板2eとの間には、部品どうしの接触音を防止するた
めに天然ゴムや合成樹脂(例えば、ポリ塩化ビニール)
などからなる防振ゴムがそれぞれ介在されている。The main girder 2a, side girder 2b and middle girder 2c
Between the floor board 2e and natural rubber or synthetic resin (for example, PVC) to prevent contact noise between parts
Vibration isolating rubbers are interposed.
【0014】また、足場板2の軸直角方向(橋桁1の軸
方向)の両端部に橋桁1の軸方向に突出し、かつ真上に
開口するフック4がそれぞれ突設されている。また、反
対側の両端部にフック4と係合可能な係合軸5がそれぞ
れ突設されている。At both ends of the scaffold plate 2 in a direction perpendicular to the axis (axial direction of the bridge girder 1), hooks 4 projecting in the axial direction of the bridge girder 1 and opening right above are respectively provided. In addition, engagement shafts 5 that can be engaged with the hooks 4 are provided at opposite end portions, respectively.
【0015】フック4の内周は全体に丸みを有し、かつ
橋桁1の軸方向にやや長めに形成され、また係合軸5は
フック4に回転自在に係合可能な円形鋼管から形成さ
れ、かつ足場板2の両端部に形成された切欠部6内にそ
れぞれ突設されている。特に、フック4が橋桁1の軸方
向に長めに形成されていることにより、足場板2を互い
に連結したままで橋桁1の軸方向にスライドできるた
め、橋桁1がカーブする場合でも、足場板2をこれに追
従させて設置することにより吊り足場Aを橋桁1に沿っ
てカーブさせることができる。The inner circumference of the hook 4 is entirely rounded and slightly longer in the axial direction of the bridge girder 1. The engaging shaft 5 is formed of a circular steel tube rotatably engageable with the hook 4. And projecting into notches 6 formed at both ends of the scaffold plate 2, respectively. In particular, since the hook 4 is formed longer in the axial direction of the bridge girder 1, the scaffolding plate 2 can slide in the axial direction of the bridge girder 1 while being connected to each other. The suspension scaffold A can be curved along the bridge girder 1 by being installed so as to follow this.
【0016】また、足場板2の軸方向の両端部に吊り桁
材7がそれぞれ取り付けられ、吊り桁材7に吊り輪環8
がそれぞれ取り付けられている(図1(c) 参照)。吊り
桁材7は側桁材2bと中桁材2c間に取り付けられ、吊り輪
環8は吊りチェーン3の下端部をつなぐための連結金具
で、床板2eに形成された孔2fから床板2eの上に自由に引
き出せるようになっている。なお、吊りチェーン3の上
端部は橋桁1にクランプ等の簡単に取り付けおよび取り
外し可能な金具によって連結されている。Also, hanging girder members 7 are attached to both ends of the scaffold plate 2 in the axial direction, respectively.
(See FIG. 1 (c)). The hanging girder member 7 is attached between the side girder member 2b and the middle girder member 2c, and the hanger ring 8 is a connection fitting for connecting the lower end portion of the hanger chain 3, and is formed through a hole 2f formed in the floor plate 2e through the floor plate 2e. It can be pulled out freely. The upper end of the suspension chain 3 is connected to the bridge girder 1 by a metal fitting that can be easily attached and detached, such as a clamp.
【0017】さらに、足場板2の軸方向の両端部には、
足場板2を橋桁1の軸直角方向(足場板2の軸方向)に
隣接して垂設した際に、隣接する足場板2どうしを橋桁
1の軸直角方向に互いに連結するクリップ9がそれぞれ
取り付けられている(図4(a),(b),(c) 参照)。クリッ
プ9は互いに添え合わされた側桁材2bのフランジ2gどう
しを挟み付けるクリップ本体9aと、側桁材2bのフランジ
2gに回転自在に挿着された軸9bとから形成され、特に使
用しないときは側桁材2bの凹溝部に収納しておけるよう
になっている(図4(a) 想像線で表示) 。特に、クリッ
プ9を側桁材2bの凹溝部に収納しておけることにより、
クリップ9の落下を未然に防止できる等の効果がある。Further, at both ends of the scaffold plate 2 in the axial direction,
When the scaffolding plate 2 is vertically installed adjacent to the bridge girder 1 in the direction perpendicular to the axis thereof (axial direction of the scaffolding plate 2), clips 9 for connecting adjacent scaffolding plates 2 to each other in the direction perpendicular to the axis of the bridge girder 1 are attached. (See FIGS. 4 (a), (b) and (c)). The clip 9 is composed of a clip body 9a for holding the flanges 2g of the side girders 2b attached to each other and a flange of the side girders 2b.
The shaft 9b is rotatably inserted into 2g, and can be stored in the concave groove of the side beam member 2b when not in use (indicated by imaginary lines in FIG. 4 (a)). In particular, by storing the clip 9 in the groove of the side beam member 2b,
There is an effect that the drop of the clip 9 can be prevented beforehand.
【0018】符号10はフック4と係合軸5とを係合して
足場板2どうしを連結した後の、切欠部6を塞ぐための
連結板で、連結板10は一方の足場板2の上に回転自在に
取り付けられている。そして、反対側端部が他方の足場
板2の上に架け渡され、かつ固定ボルト10a によって他
方の足場板2にボルト止めされている(図3(a) 参
照)。その際、固定ボルト10a が貫通する連結板10のボ
ルト孔10b を長孔とすることにより、連結板10が自由に
回転できることとも併せて、足場板2どうしが少々横ず
れした状態に連結された場合でも、切欠部6を確実に塞
ぐことができ、また足場板2どうしをより確実に連結す
ることができる。Reference numeral 10 denotes a connecting plate for closing the cutout portion 6 after connecting the scaffold plates 2 by engaging the hooks 4 and the engaging shafts 5, and the connecting plate 10 is provided on one of the scaffold plates 2. It is rotatably mounted on top. The opposite end is bridged over the other scaffold plate 2 and is bolted to the other scaffold plate 2 with fixing bolts 10a (see FIG. 3 (a)). At this time, when the bolt holes 10b of the connecting plate 10 through which the fixing bolts 10a penetrate are formed as long holes, the connecting plate 10 can be freely rotated, and the scaffold plates 2 are connected in a state where they are slightly shifted laterally. However, the notch 6 can be reliably closed, and the scaffolds 2 can be more reliably connected.
【0019】このように構成された足場板2は、橋桁1
の下にフック4と係合軸5とを係合して互いを橋桁1の
軸方向に連結しながら吊りチェーン3によって垂設する
ことにより橋桁1の軸方向に連続する吊り足場Aが仮設
されている。The scaffold plate 2 thus constructed is a bridge girder 1
The hook 4 and the engagement shaft 5 are engaged with each other, and the hook 4 and the engagement shaft 5 are connected to each other in the axial direction of the bridge girder 1 and vertically suspended by the suspension chain 3, whereby a suspension scaffold A continuous in the axial direction of the bridge girder 1 is temporarily provided. ing.
【0020】発明の実施の形態2.次に、この発明に係
る吊り足場の仮設方法を順をおって説明する。Embodiment 2 of the Invention Next, a method for temporarily providing a hanging scaffold according to the present invention will be described in order.
【0021】 最初に、橋桁1を支持する橋脚11のす
ぐ脇に、最初の足場板2Aを吊りチェーン3によって吊る
(図5(a) 参照)。その際、足場板2Aの橋脚11側端部は
係合軸5に橋桁1に垂設した吊りチェーン3の下端部を
引っ掛け、反対側端部は吊り輪環8に吊りチェーン3の
下端部をそれぞれ引っ掛けて吊る。First, the first scaffold plate 2A is suspended by the suspension chain 3 immediately beside the pier 11 supporting the bridge girder 1 (see FIG. 5 (a)). At this time, the end of the scaffold plate 2A on the bridge pier 11 side hooks the lower end of the suspension chain 3 suspended from the bridge girder 1 on the engaging shaft 5, and the opposite end connects the lower end of the suspension chain 3 on the suspension ring 8. Hang each one.
【0022】また、橋桁1が平行に複数設置されている
場合は、それぞれの橋桁1に前記同様にして足場板2Aを
橋桁1の軸直角方向に隣接して吊り、橋桁1の軸直角方
向に隣接する足場板1どうしをクリップで連結する。When a plurality of bridge girders 1 are installed in parallel, a scaffold 2A is suspended adjacent to each bridge girder in the same manner as described above in the direction perpendicular to the axis of the bridge girder 1 and in the direction perpendicular to the axis of the bridge girder 1. Adjacent scaffolding boards 1 are connected by clips.
【0023】 次に、足場板2Aの先端部に2枚目の足
場板2Bを吊る。その際、足場板2Aの先端部に足場板2Bを
仮置きして仮吊りチェーンまたは仮吊りワイヤー等の仮
吊り部材12をセットする。また、足場板2Aのフック4に
足場板2Bの係合軸5を係合して足場板2Bを横置き状態に
建て付ける(図5(b) 参照)。また、仮吊り部材12の上
端部を橋桁1に足場板2Aの真上に位置するように連結
し、下端部を足場板2Bの吊り輪環6に連結する。その
際、仮吊り部材12の上端部も吊りチェーン3の上端部と
同様に同じクランプを介して橋桁1に連結する。そし
て、足場板2Bを前方にゆっくり押し倒した後、水平にし
て足場板2Aと連続させる(図5(c) 参照)。Next, a second scaffold plate 2B is hung on the tip of the scaffold plate 2A. At this time, the scaffold plate 2B is temporarily placed at the tip of the scaffold plate 2A, and the temporary suspension members 12 such as a temporary suspension chain or a temporary suspension wire are set. Further, the engaging shaft 5 of the scaffold plate 2B is engaged with the hook 4 of the scaffold plate 2A, and the scaffold plate 2B is laid horizontally (see FIG. 5 (b)). Further, the upper end of the temporary suspension member 12 is connected to the bridge girder 1 so as to be located directly above the scaffold 2A, and the lower end is connected to the suspension ring 6 of the scaffold 2B. At this time, the upper end of the temporary suspension member 12 is also connected to the bridge girder 1 via the same clamp as the upper end of the suspension chain 3. Then, after the scaffold plate 2B is slowly pushed down forward, the scaffold plate 2B is made horizontal and continuous with the scaffold plate 2A (see FIG. 5 (c)).
【0024】また、橋桁1が平行に複数設置されている
場合は、それぞれの橋桁1に前記同様にして足場板2Bを
橋桁1の軸直角方向に隣接して吊り、橋桁1の軸直角方
向に隣接する足場板1どうしをクリップ9で連結する。
さらに、橋桁1の軸方向に隣接する足場板2Aと2Bとを連
結板10を介してそれぞれ連結する。When a plurality of bridge girders 1 are installed in parallel, a scaffolding plate 2B is suspended on each bridge girder 1 in the same manner as described above in the direction perpendicular to the axis of the bridge girder 1 and perpendicular to the axis of the bridge girder 1. Adjacent scaffold plates 1 are connected by clips 9.
Further, the scaffold plates 2A and 2B which are adjacent to each other in the axial direction of the bridge girder 1 are connected to each other via the connecting plate 10.
【0025】 次に、足場板2Aと同様にして、足場板
2Bの先端部を吊りチェーン3で吊り、仮吊り部材12を取
り外す。Next, similar to the scaffold plate 2A, the scaffold plate
The tip of 2B is hung by the hanging chain 3, and the temporary hanging member 12 is removed.
【0026】 以下同様にして、3枚目、4枚目と、
足場板2Cを橋桁1の軸方向、または橋桁の軸方向および
軸直角方向に互いを連結しながら吊りチェーン3によっ
てそれぞれ垂設することにより、橋桁1の軸方向、また
は橋桁の軸方向および軸直角方向に連続する吊り足場A
を構成する。なお、仮吊り部材12は繰り返し使用する。
また、足場板の撤去は前記とは逆の手順で簡単に行うこ
とができる。In the same manner, the third and fourth sheets
By suspending the scaffolding plates 2C with the suspension chains 3 while connecting them in the axial direction of the bridge girder 1 or in the axial direction and the axis perpendicular direction of the bridge girder, respectively, the axial direction of the bridge girder 1 or the axial direction and the axis perpendicular to the bridge girder. Scaffold A that is continuous in the direction
Is configured. The temporary suspension member 12 is used repeatedly.
Further, the scaffold plate can be easily removed by the reverse procedure.
【0027】[0027]
【発明の効果】この発明は以上説明した構成からなり、
足場板は橋桁の軸方向の一端側に真上に開口するフック
と吊りチェーンの下端部を連結する吊り輪環を、その反
対側に前記フックと回転自在に係合し得る係合軸をそれ
ぞれ有して構成されているので、橋桁の下にその軸方向
に連続して設置する際に、クランプ等の連結金具を特に
必要とせずに互いを橋桁の軸方向にきわめて簡単にかつ
強固に連結できる等の効果がある。The present invention has the above-described structure,
The scaffolding plate has a hook that opens right above at one end in the axial direction of the bridge girder and a suspension ring that connects the lower end of the suspension chain, and an engagement shaft that can rotatably engage with the hook on the opposite side. Because it is configured to have, it is extremely easy and firmly connected to each other in the axial direction of the bridge girder when installing continuously under the bridge girder in the axial direction without specially requiring connecting brackets such as clamps There are effects such as being able to do.
【0028】吊り足場は、前記足場板をフックと係合軸
とを係合し、かつ吊りチェーンで橋桁に吊りながら橋桁
の軸方向に複数垂設して構成されているので、足場板を
橋桁の長さおよび橋桁の数に応じて必要なだけ追加する
ことにより、必要規模に仮設できる等の効果がある。ま
た、橋桁の軸方向と軸直角方向にそれぞれ隣接する足場
板どうしは連結板とクリップとよってそれぞれ連結され
ているので、突風などで煽られるようなこともなく、安
全面でも優れている。The suspension scaffold is constructed by engaging the hook and the engaging shaft with the scaffold plate and suspending the scaffold plate on the bridge girder with a plurality of suspension chains so as to be vertically suspended in the axial direction of the bridge girder. By adding as many as necessary according to the length of the bridge and the number of bridge girders, there is an effect that the required scale can be temporarily established. Further, since the scaffolds adjacent to each other in the axial direction and the direction perpendicular to the axis of the bridge girder are connected by the connecting plate and the clip, respectively, they are not fanned by a gust and are excellent in safety.
【0029】さらに、吊り足場の仮設に際しては、各足
場板をその前に垂設された足場板の先端部に、フックと
係合軸とを係合して横倒しの状態に建て付けると共に、
この足場板と橋桁間に仮吊り部材を架け渡し、次に前記
足場板を橋桁の軸方向に押し倒して前に垂設された足場
板と水平に連続させ、次に前記足場板と橋桁間に吊りチ
ェーンを垂直に架け渡し、その後前記仮吊り部材を取り
外すので、足場板の垂設作業は常に、垂設された足場板
の上で行うことができ、足場板の外に身を乗り出すよう
な作業は強いられないので、きわめて安全に仮設作業を
行うことができる等の効果がある。Further, when the suspended scaffolds are temporarily installed, each of the scaffolding plates is mounted on the tip of the scaffolding plate suspended in front of the scaffolding plates by engaging the hooks and the engaging shafts in a sideways position.
A temporary suspension member is bridged between the scaffold plate and the bridge girder, and then the scaffold plate is pushed down in the axial direction of the bridge girder so as to be horizontally continuous with the previously suspended scaffold plate, and then between the scaffold plate and the bridge girder. Since the suspension chain is suspended vertically, and then the temporary suspension member is removed, the work of hanging the scaffold plate can always be performed on the suspended scaffold plate, such as leaning out of the scaffold plate. Since no work is required, there is an effect that the temporary work can be performed extremely safely.
【図1】(a) は吊り足場板の一部破断平面図、(b) と
(c) はそれぞれ、そのイ−イ線断面図、ロ−ロ線断面図
である。FIG. 1 (a) is a partially cutaway plan view of a suspended scaffold plate, and FIG.
(c) is a sectional view taken along the line II and II, respectively.
【図2】(a) は図1(b) のハ部拡大図、(b) は図1(a)
のニ部拡大図、(c) と(d) はそれぞれ、図2(b) のホ−
ホ線断面図、ヘ−ヘ線断面図である。2 (a) is an enlarged view of a portion C in FIG. 1 (b), and FIG. 2 (b) is an enlarged view of FIG.
(C) and (d) are respectively the enlarged view of FIG. 2 (b).
It is a sectional view taken along the line E in FIG.
【図3】(a) は図1(a) のト部拡大図、(b) は図3(a)
のチ−チ線断面図である。FIG. 3 (a) is an enlarged view of a part G in FIG. 1 (a), and FIG. 3 (b) is an enlarged view of FIG.
FIG. 3 is a cross-sectional view taken along the line T-T.
【図4】(a) は図1(a) のリ部拡大図、(b) はそのヌ−
ヌ線断面図、(c) はル−ル線断面図である。FIG. 4 (a) is an enlarged view of a portion of FIG. 1 (a), and FIG.
Nu-line sectional view, (c) is a rule line sectional view.
【図5】(a),(b),(c),(d),(e),(f) は吊り足場の仮設方
法を示す側面図である。FIGS. 5 (a), (b), (c), (d), (e), (f) are side views showing a method of temporarily installing a hanging scaffold.
【図6】(a) は従来の吊り足場の一例を示す斜視図、
(b) はその縦断面図である。FIG. 6 (a) is a perspective view showing an example of a conventional hanging scaffold,
(b) is a longitudinal sectional view thereof.
A 吊り足場 1 橋桁 2 足場板 2a 主桁材 2b 側桁材 2c 中桁材 2d 枠体 2e 床板 2f 孔 2g フランジ 3 吊りチェーン 4 フック 5 係合軸 6 切欠部 7 吊り桁材 8 吊り輪環 9 クリップ 9a クリップ本体 9b 軸 10 連結板 10a 固定ボルト 10b ボルト孔 11 橋脚 12 仮吊り部材。 A Suspension scaffold 1 Bridge girder 2 Scaffold plate 2a Main girder material 2b Side girder material 2c Middle girder material 2d Frame 2e Floor plate 2f Hole 2g Flange 3 Suspension chain 4 Hook 5 Engagement shaft 6 Notch 7 Hanging girder material 8 Suspension ring 9 Clip 9a Clip body 9b Shaft 10 Connecting plate 10a Fixing bolt 10b Bolt hole 11 Bridge pier 12 Temporary suspension member.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平11−13275(JP,A) (58)調査した分野(Int.Cl.7,DB名) E04G 3/10 E01D 21/02 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-13275 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E04G 3/10 E01D 21/02
Claims (5)
橋桁の軸方向および軸直角方向の両方向に互いを連結し
ながら前記橋桁に吊りチェーンを介して複数垂設するこ
とにより前記橋桁の軸方向、または橋桁の軸方向および
軸直角方向の両方向に連続する吊り足場を構成する足場
板において、前記橋桁の軸方向の一端側に真上に開口す
るフックと前記吊りチェーンの下端部を連結する吊り輪
環を、その反対側に前記フックと回転自在に係合し得る
係合軸をそれぞれ有して構成してなることを特徴とする
足場板。1. A plurality of bridge girders are suspended from the bridge girders via suspension chains while being connected to each other in the axial direction of the bridge girders or in both the axial direction and the direction perpendicular to the axis of the bridge girders. In a scaffold plate that constitutes a hanging scaffold that is continuous in both the axial direction and the axial direction and the direction perpendicular to the axis of the bridge girder, a hook that opens directly above one end in the axial direction of the bridge girder and a lower end of the hanging chain are connected. A scaffold plate comprising: a hanging ring ring having opposite engagement shafts rotatable with the hooks on opposite sides thereof.
をフックと係合軸とを係合し、かつ吊りチェーンで前記
橋桁に吊りながら橋桁の軸方向、または橋桁の軸直角方
向に複数垂設して構成してあることを特徴とする吊り足
場。2. The scaffold plate according to claim 1, wherein said scaffold is engaged with a hook and an engaging shaft under said bridge girder, and is suspended on said bridge girder by a suspension chain. A hanging scaffold characterized by being provided with a plurality of hanging in a direction.
を、一方の足場板に回転自在に取り付けられた連結板で
それぞれ連結してなることを特徴とする請求項第2項記
載の吊り足場。3. The suspension scaffold according to claim 2, wherein the scaffolds adjacent to each other in the axial direction of the bridge girder are connected by a connecting plate rotatably attached to one of the scaffolds. .
しを、一方の足場板に回転自在に取り付けられたクリッ
プでそれぞれ挟持してなることを特徴とする請求項第2
項または第3項記載の吊り足場。4. A scaffold plate adjacent to a bridge girder in a direction perpendicular to an axis thereof is sandwiched by clips rotatably attached to one of the scaffold plates.
Item 4. The hanging scaffold according to item 3 or 3.
において、各足場板をその前に垂設された足場板の先端
部に、フックと係合軸とを係合して横倒しの状態に建て
付けると共に、この足場板と橋桁間に仮吊り部材を架け
渡し、次に前記足場板を橋桁の軸方向に押し倒して前に
垂設された足場板と水平に連続させ、次に前記足場板と
橋桁間に吊りチェーンを垂直に架け渡し、その後前記仮
吊り部材を取り外すことを特徴とする吊り足場の仮設方
法。5. The method according to claim 2, wherein each of the scaffolding plates is placed sideways by engaging a hook and an engaging shaft with a front end of a scaffolding plate suspended in front thereof. While being built in the state, a temporary suspension member is bridged between the scaffold plate and the bridge girder, and then the scaffold plate is pushed down in the axial direction of the bridge girder to be horizontally continuous with the previously suspended scaffold plate. A method for temporarily installing a suspended scaffold, comprising suspending a suspended chain vertically between a scaffold plate and a bridge girder, and then removing the temporary suspended member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9242577A JP3017463B2 (en) | 1997-09-08 | 1997-09-08 | Scaffolding board, hanging scaffold and temporary construction method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9242577A JP3017463B2 (en) | 1997-09-08 | 1997-09-08 | Scaffolding board, hanging scaffold and temporary construction method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1181654A JPH1181654A (en) | 1999-03-26 |
JP3017463B2 true JP3017463B2 (en) | 2000-03-06 |
Family
ID=17091144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9242577A Expired - Lifetime JP3017463B2 (en) | 1997-09-08 | 1997-09-08 | Scaffolding board, hanging scaffold and temporary construction method thereof |
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Country | Link |
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JP (1) | JP3017463B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101364316B1 (en) * | 2013-04-09 | 2014-02-18 | 주식회사백상 | Suspended Scaffolding and Platform for the Boiler |
JP2015209741A (en) * | 2014-04-30 | 2015-11-24 | 株式会社福田組 | Suspended scaffold forming member |
CN107642049B (en) * | 2017-08-23 | 2023-07-07 | 柳州欧维姆机械股份有限公司 | Device for replacing main cable clamp of suspension bridge and installation method of device |
KR102406625B1 (en) * | 2020-08-27 | 2022-06-07 | 백상화 | Safe scaffold and its suspending method |
-
1997
- 1997-09-08 JP JP9242577A patent/JP3017463B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH1181654A (en) | 1999-03-26 |
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