JP6783069B2 - How to install a suspension scaffolding device for bridges - Google Patents

Description

The present invention relates to a method for installing a suspension scaffolding device for a bridge.

Conventionally, as the above-mentioned suspension scaffolding device for bridges, for example, the one described in Patent Document 1 is known. In such a conventional construction method, when inspecting or repairing a narrow bridge, a temporary scaffolding is constructed on the entire surface under the bridge by using a temporary material and suspending it from the bridge frame by a chain. However, it was very dangerous and required skill because it involved the work that the workers embarked on, and the work time also increased due to the length of the bridge.

Further, for example, by using a "bridge inspection vehicle (a hydraulically controlled dedicated machine for truck mounting)" as shown in Patent Document 2, the work floor is moved to the lower surface of the bridge to enable investigation and the like. In such a case, it is safe and the installation time is greatly shortened, but traffic regulation is required because the bridge inspection vehicle occupies the passage part of the general vehicle of the bridge.

JP-A-7-11764 JP-A-2002-187692

In view of such conventional circumstances, the present invention can shorten the installation work time of the temporary suspension scaffolding in the work of investigating, inspecting, and repairing structures such as bridges, and can secure safety and labor saving, and is generally used after installation. An object of the present invention is to provide a method for installing a suspension scaffolding device for a bridge that does not obstruct the passage of vehicles.

The characteristic configuration of the installation method of the first suspension scaffolding device for a bridge of the present invention is a support for attaching a scaffolding stage member that crosses the bridge on the lower surface side of the bridge and a support leg member for grounding against the road surface of the bridge. A pair of separate suspension scaffolds for bridges are provided separately with a portion provided at the upper part and a suspension scaffold main body frame provided with a stage holder portion capable of connecting and holding the scaffolding stage member at the lower part. With the suspension scaffold body frame arranged on the lateral outside of the bridge, the support leg member extends from the upper part of the suspension scaffold body frame toward the center side in the width direction of the bridge so that the support leg member can be attached to the road surface of the bridge so as to be grounded. The support leg member is provided with casters at a contact portion of the bridge with respect to the road surface, and the suspension scaffold main body frame is movably configured in the longitudinal direction of the bridge, and the pair of bridge suspension scaffolds are provided. The scaffolding stage member is slid in the width direction of the bridge and assembled to each of the stage holders so that one end thereof can move back and forth, and a pair of suspensions are suspended on the left and right sides of the bridge. When the scaffold body frame is arranged, the suspension scaffold for a bridge provided with a scaffold stage member connecting portion capable of connecting one end portions of the scaffold stage members assembled to the stage holder portions in close proximity to each other. A bridge suspension scaffolding device that can be freely loaded and unloaded on the truck bed is prepared, and one of the pair of bridge suspension scaffolds is used to unload the bridge suspension scaffold from the truck bed. While suspending the suspension scaffold main body frame in a posture along the vertical direction, the suspension foot member is placed outside the bridge across the parapet on one side of the bridge, and the support leg member is grounded on the road surface of the bridge. While suspending the suspension scaffold main body frame of the other suspension scaffold for the bridge in a posture along the vertical direction, the suspension leg member is arranged outside the bridge across the parapet on the other side of the bridge. Is grounded on the road surface of the bridge, and after the pair of suspension suspensions for the bridge are unloaded from the loading platform of the truck, the loading platform of the truck and each of the suspension scaffold body frames are temporarily fixed and fixed via temporary fixing wires. One end of each of the scaffolding stage members in a pair of bridge suspension scaffolds is slid from the stage holder portion so as to be close to each other in the width direction of the bridge, and each of the scaffolding stage members is brought into the scaffolding stage member. After being connected to each other via a connecting portion and held between the scaffolding stage holder portions, the temporary fixing wire is removed, the truck is removed, and the bridge can be moved in the longitudinal direction of the bridge. It is located in Noh.

According to the first characteristic configuration of the present invention, by preparing the suspension scaffolding device for a bridge, the suspension scaffolding main body frame is suspended in a vertical position by a crane or the like, and a support leg member is above the suspension scaffolding device. By arranging a scaffolding stage member that connects and holds the crane to the road surface of the bridge and connects and holds the scaffolding to the stage holder on the lower surface side of the bridge at the lower part, the bridge can be repaired and inspected safely and easily.
For example, the casters on the support leg members allow the suspended scaffolding body frame and scaffolding stage members to be easily moved together in the longitudinal direction of the bridge without having to place the scaffolding over the entire lower working area of the bridge. Bridges can be easily repaired and inspected over a wide area with a small number of members, improving workability.
Moreover, after the support leg members are grounded to the road surface of the bridge, the scaffolding stage members are suspended by the suspension scaffolding body frame, so that the passage of general vehicles on the bridge is not obstructed, and traffic restrictions are imposed when installing the suspension scaffolding. No need to do.
Since the scaffolding stage member is assembled to the stage holder portion so that one end thereof can be moved back and forth toward the central portion in the width direction of the bridge, it is not necessary to assemble the scaffolding stage member when installing the suspended scaffolding. Not only can the work time be shortened while ensuring safety, but when the scaffolding body frame is placed outside the bridge while being hung by a crane or the like, the scaffolding stage members are placed outside so as not to interfere with the railings of the bridge. If the support leg members are moved so as to protrude below the bridge after touching the road surface of the bridge, the installation and repair / inspection work can be performed smoothly in a short time.
When installing a pair of suspended scaffolding body frames on both the left and right sides of the bridge, the scaffolding stage members can be made more stable by connecting and integrating the scaffolding stage members assembled to them with the scaffolding stage member connecting part. , The safety in the work on the scaffolding stage can be further improved.

With a simple installation process, it is possible to shorten the installation work time of temporary suspension scaffolding in the investigation, inspection, and repair work of structures such as bridges, ensure safety and labor saving, and pass general vehicles after installation. There is no need to limit.

The second characteristic configuration of the present invention is to connect and integrate the upper end portions of the suspended scaffolding main body frame with each other via a connecting member, and to connect one end portions of the scaffolding stage members via the scaffolding stage member connecting portion. After that, when moving along the longitudinal direction of the bridge and changing the inspection / repair position, the scaffolding stage members are slid so as to be separated from each other in the width direction of the bridge, which is an obstacle. It is in the place to dodge and move.

It is a perspective view which shows the transport form of the suspension scaffold which concerns on this invention. It is a perspective view which shows the state which expanded the suspension scaffolding which concerns on this invention. It is a front view which shows the state which the suspension scaffolding which concerns on this invention is installed on a bridge. It is a perspective view of the upper rudder part. It is a partially enlarged perspective view near the rudder part. It is a perspective view of the slide roller holder frame. It is a perspective view of a sliding stage. It is a partially enlarged perspective view near the docking part. It is a figure explaining the transportation of a suspension scaffold. It is a figure explaining the building up of a suspension scaffolding. (A) is a diagram showing the completed state of raising the suspended scaffold, and (b) is a diagram for explaining the slide of the stage. It is a figure explaining the movement of a suspended scaffold to the side of a bridge. It is a figure explaining the installation of an outrigger. It is a partial enlarged view near the road surface outrigger with a traveling wheel. It is a partial enlarged view near the side outrigger of the bridge with guide wheels. It is a figure explaining the adjustment of the upper rubber part. It is a figure explaining the adjustment of a stage part. It is a figure which shows the installation of the other suspension scaffolding. It is a figure which shows the installation completion state of the suspension scaffolding. It is a perspective view which shows the installation state of the suspension scaffold of another embodiment. It is a front view which shows the installation state of the suspension scaffold of another embodiment. It is a perspective view of the suspension scaffold of another embodiment. It is an exploded perspective view of the suspension scaffold of another embodiment. It is explanatory drawing of the main part operation of the suspension scaffolding. It is a front view of the main part which shows the operation explanation of the suspension scaffold of another embodiment. It is a front view of the suspension scaffold of another embodiment. In the side view which shows the operation explanation of the suspension scaffold of another embodiment, (a) shows the state which the caster is retired, and (b) shows the state which the caster is projected downward. It is a front view of the suspension scaffold of another embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 19, a scaffolding stage member that crosses the bridge is provided on the lower surface side of the bridge, and a support portion 8 to which a support leg member 7 for grounding the road surface of the bridge is attached is provided on the upper portion. In addition, a suspension scaffold for a bridge is configured by providing a suspension scaffold main body frame 6 provided with a stage holder portion 10 capable of connecting and holding the scaffold stage member at the lower portion.

The suspension scaffolding body frame 6 is provided with an upper ladder portion 2 including an upper frame 21 and a ladder portion 22 that is fitted inwardly on the upper frame 21 and is held so as to be vertically retractable, and the upper ladder portion thereof. A slide roller holder frame 3 is provided which is vertically foldably connected to the number 2 via a hinge portion 9.

The stage holder portion 10 is composed of a holder frame frame 33 in the slide roller holder frame 3, and one end of a slide type stage 4 which is an example of a scaffolding stage member can freely move in and out toward the central portion in the width direction of the bridge 100. It is assembled in.

As an example, the support leg member 7 is provided with a road surface outrigger 21a with traveling wheels that is supported and suspended on the bridge road surface 101 and can be manually moved in the bridge longitudinal direction Y, and casters 11 are attached as the traveling wheels.
With the suspension scaffold body frame 6 arranged laterally to the lateral side of the bridge 100, the support portion 8 is directed toward the center side in the width direction of the bridge 100 so that the support leg member 7 can be attached to the road surface of the bridge 100 so as to be grounded. The support leg member 7 is attached to the support portion 8 extending from the upper part of the main body frame 6, and the position of the entire center of gravity is positioned between the ground contact portion of the support leg member 7 and the suspension scaffold main body frame 6. It is formed so as to do.

Next, the present invention will be described in more detail with reference to the accompanying drawings as appropriate.
[Overview of suspended scaffolding]
As shown in FIGS. 1 to 3, the suspension scaffolding 1 according to the present invention stores and stands up the upper ladder portion 2 having an expansion / contraction function so that the girder height H of the bridge 100 can be adjusted. A slide roller holder composed of a rotary shaft metal fitting 22a for sliding, a fixing metal fitting 22b for fixing after standing up, and a holder frame frame 33 of a roller 32 for sliding the slide type stage 4 constituting the scaffolding stage member. It is composed of a frame 3 and a sliding stage 4 that can be slid with a light force by a roller 32 so that the girder width W of the target bridge 100 can be adjusted.

[Outline of upper ladder part 2]
As shown in FIGS. 1 to 4, the upper rudder portion 2 is supported by a road surface outrigger 21a with traveling wheels that is supported and suspended on the bridge road surface 101 and can be manually moved in the bridge longitudinal direction Y, and is stretched and supported against the bridge side surface 103. It is provided with a bridge side outrigger 21b with guide wheels that is possible and travels along the bridge side 103 to guide it.
Further, the upper rudder portion 2 rotates as an upper frame 21 extending downward so as to be suspended from the side surface 103 of the bridge and a hinge portion 9 for storing the upper rudder portion 2 so as to be folded so as to be stored during transportation. A rudder portion 22 that has a shaft metal fitting 22a and a fixing metal fitting 22b that can be fixed after standing up, and can be expanded and contracted and fixed by sliding in parallel with the upper frame 21 according to the girder height H of the bridge 100 and changing the connection position. It is composed of.

As shown in FIGS. 3 to 5, the upper frame 21 is grounded on the bridge road surface 101 by the casters 11 attached to the road surface outriggers 21a with traveling wheels, and extends below the bridge (vertical direction Z) beyond the bridge balustrade 104. Present. The skeleton also serves as a ladder for workers to move up and down to the lower surface side 102 of the bridge.
Further, the upper frame 21 is manually moved in the bridge longitudinal direction Y along the longitudinal direction of the bridge 100 in order to progress the work and change the installation location, and the road surface out trigger 21a with traveling wheels for stability. And, a bridge side surface out trigger 21b with guide wheels to which casters 13 are attached is provided for stability along the bridge side surface 103.
Therefore, each outrigger can be folded and stored, for example, as shown in FIG. 1 so as not to take up a lot of space when loading the truck 5 with a simple crane.

The upper ladder portion 2 has a structure in which the length of the sliding stage 4 is expanded and contracted by the bridge girder height H so that the sliding stage 4 can be operated on the lower surface side 102 of the bridge. As shown in FIGS. 4 and 5, the upper frame 21 and the ladder portion 22 can be expanded and contracted by being guided by the ladder portion slide guide 22c, and can be adjusted to the bridge girder height H. In the case of positioning, it is fixed with slide lock bolts and nuts 22d.

[Overview of Slide Roller Holder Frame 3]
As shown in FIG. 6, the slide roller holder frame 3 has a rotating shaft fitting 31a and a fixing fitting 31b that can be fixed by a pin after standing up as a hinge portion 9 for raising and lowering the upper ladder portion 2. Conventionally, when a long heavy member such as the upper ladder portion 2 is erected from a prone state, the member is erected by a crane with a part below the member grounded, but the member may escape due to the operation of the crane. There is a risk of sideways movement.
However, in the present invention, since the rotating shaft fitting 31a and the rotating shaft fitting 22a are connected via a shaft, rotation occurs with the shaft as a fulcrum, facilitating crane operation and reducing danger.
That is, the rotary shaft metal fitting 22a and the fixing metal fitting 22b provided on the ladder portion 22 and the fixing metal fitting 31a and the fixing metal fitting 31b provided on the slide roller holder frame 3 constitute the hinge portion 9 of the suspension scaffolding main body frame 6. There is.

In order to install the upper ladder portion 2 on the side surface 103 of the bridge, the sliding stage 4 is projected on the road surface 101 of the bridge in advance to the outside of the side of the bridge so as not to interfere with the bridge 100.
After installing the upper rudder portion 2, the worker descends from the upper rudder portion 2 to the sliding stage 4, takes a reaction force by hand on the slide roller holder frame 3, and pushes and pulls the sliding stage 4 as if walking. As shown in FIG. 6, the structure is formed by a holder frame 33 in which two sets of 10 rollers 32 in the front-rear direction are arranged on the frame so that the frame frame 41 of the sliding stage 4 can be easily slid. It is configured.

[Overview of sliding stage 4]
As shown in FIG. 7, the sliding stage 4 is composed of a frame frame 41 and a work floor 42. The suspension scaffolding 1 is installed from the left and right side surfaces 103 of the bridge 100, respectively, and a stage (work floor) that crosses the bridge 100 is formed on the lower surface side 102 of the bridge.

As shown in FIG. 8, a docking portion is provided at one end of the frame frame 41 as a scaffolding stage member connecting portion 12 in order to connect the left and right sliding stages 4 to each other at the central portion 102 on the lower surface side 102 of the bridge. A female metal fitting 43a and a docking portion male metal fitting 43b are provided. This is devised so that docking can be easily performed even if the position is displaced.
Further, there is a retaining hook 44 at the end of the frame frame 41 so that the left and right sliding stages 4 can be fixed by a lever block (registered trademark) or the like.

[Outline of suspension scaffolding installation process]
[Work procedure 1] (Fig. 9)
Two suspension scaffolds 1 are loaded and transported on the loading platform of the truck 5 with a simple crane in a stored state, and stopped at the center of the width direction X of the target bridge 100 in parallel with the bridge longitudinal direction Y of the bridge 100. Operate and install the crane outrigger 52.

[Work procedure 2] (Fig. 10)
The crane 51 is prepared to be installed so that it can be suspended, and the upper ladder portion 2 whose length is adjusted to the girder height H of the target bridge 100 in advance and the main body suspension wire 22f connected to the suspension fitting 22e are attached to the crane suspension hook. Hang it on 53 and lift it. At this time, the rotating shaft fitting 22a and the rotating shaft fitting 31a can be used as fulcrums to build up.
In FIGS. 8 to 11, 14 and 15, only one suspension scaffold 1 is represented on the loading platform of the truck 5 with a simple crane, but this is only for the purpose of making the illustration easy to understand, and in reality, the other suspension is suspended. Scaffold 1 remains loaded.

[Work procedure 3] (Fig. 11)
The raised upper rudder portion 2 is fixed by fastening the fixing bracket 22b and the fixing bracket 31b with bolts and nuts. At this time, the crane 51 is operated, and as shown in FIG. 6B, the sliding stage 4 is slid so as to project to the outside of the bridge in order to facilitate installation on the lower surface side 102 of the bridge.

[Work procedure 4] (Fig. 12)
The crane 51 is operated to move the suspended scaffold 1 prepared in the work procedure 3 to the bridge side surface 103 in the state shown in FIG.

[Work procedure 5] (FIGS. 13 to 15)
The crane 51 is operated so that the worker can touch the suspended scaffold 1 from the road surface 101 of the bridge 100, and the suspended scaffold 1 is brought close to the bridge balustrade 104 and made to rest. Subsequently, the road surface outrigger 21a with traveling wheels stored for transportation is rotated and locked by the lock hook lever 22g as shown in FIG. The lock bar 22h is set and fixed to the bridge side outrigger 21b with guide wheels as shown in FIG.

[Work procedure 6] (Fig. 16)
The crane 51 is operated so that the suspended scaffold 1 for which the work procedure 5 is completed is located in front of the loading platform of the truck 5 with a simple crane, and the wheels of the road surface outrigger 21a with traveling wheels of the suspended scaffold 1 are brought into contact with the bridge road surface 101. The guide wheels of the bridge side outrigger 21b with guide wheels are brought into contact with the bridge side surface 103, and the upper rudder portion 2 is installed so as to be vertical.

[Work procedure 7] (Fig. 17)
After completing the work procedure 6, the hook 56 of the loading platform of the truck 5 with a simple crane of the suspension scaffold 1 and the hook 22i for temporary fixing of the upper frame 21 are temporarily fixed with the temporary fixing wire 54 and the lever block (registered) while being suspended by the crane 51. Temporarily fix at two places in the front and rear using the trademark) 55. After confirming the temporary fixing, the crane 51 is operated to remove the crane suspension hook 53 and the main body suspension wire 22f.
Next, the worker descends to the sliding stage 4 via the upper ladder portion 2. The worker obtains a reaction force from the slide roller holder frame 3 and slides the slide stage 4 so that the tip of the slide stage 4 is substantially in the center of the bridge 100 so as to walk on the work floor 42.

[Work procedure 8] (Fig. 18)
Subsequently, the other suspension scaffolding 1 is performed in the same manner in the work steps 2 to 7, and the left and right sliding stages 4 and 4 are butt-joined with the docking part female metal fitting 43a and the docking part male metal fitting 43b, and the respective retaining hooks are prevented from coming off. 44 is fixed using a lever block (registered trademark) 55.

[Work procedure 9] (Fig. 19)
Remove the temporary fixing wire 54 and the lever block (registered trademark) 55 temporarily fixed in the work procedure 7. This completes the installation of the hanging scaffold 1. Then, the crane outrigger 52 is stored and the truck 5 with a simple crane is moved out.

After that, the structure of the bridge will be investigated, inspected, and repaired. Depending on the progress of the work, the suspended scaffold 1 is manually moved in the bridge longitudinal direction Y by using the wheels of the road surface outrigger 21a with traveling wheels. The passage portion of the bridge 100 can be passed by general vehicles as usual by only speed regulation due to the movement of the truck 5 with a simple crane.

Finally, the possibility of still another embodiment of the present invention will be described. The same reference numerals are given to the same members as those in the above-described embodiment.
[Another Embodiment]
1. In the above embodiment, the scaffolding stage member is configured to be slidable by the slide type stage 4 shown in FIGS. 1 to 8 and 24. However, the scaffolding stage member is not limited to the slide type, and as shown in FIG. After the suspension scaffolds 1 and 1 are installed on both sides of the bridge 100, the truss members that form the bridge portion having an integrated length extending between the left and right holder frames are hung as one scaffolding stage member. Is also possible. However, the above embodiment is excellent in terms of safety and workability.
In addition, each of the slide mechanisms, connecting means, and the like is merely an example, and various modifications can be made without departing from the gist of the present invention.
2. As shown in FIGS. 27 (a) and 27 (b), the caster 11 may be attached to the support leg member 7 so that the vertical position can be adjusted relative to the support portion 8. In this case. By adjusting the up and down movement of the caster 11, the stage height of the scaffolding stage member can be finely adjusted, and therefore, the repair and inspection work of the lower surface of the bridge can be facilitated.
In other words, when the main frame of the scaffolding is hung by a crane or the like, the casters are grounded to the road surface of the bridge while crossing the parapet from the outside of the bridge, and the scaffolding stage members are retracted when entering the underside of the bridge. By retreating upward, the casters and scaffolding stage members can be installed in place without interfering with a part of the bridge.
3. As shown in FIGS. 20 to 25, when a pair of suspension scaffold body frames 6 are arranged on the left and right sides of the bridge 100 at the upper end of the suspension scaffold body frame 6, the pair of suspension scaffold body frames 6 are connected to each other. The first main body frame connecting portion 16 may be provided so as to be able to be connected and integrated via the wire 15. In this case, the position of the entire center of gravity is set to the ground contact portion of the support leg member 7 and the hanging scaffold main body frame 6. Since it is formed so as to be located between the scaffolding, the moment that the lower part of the suspension scaffolding body frame 6 tends to tilt inward of the bridge 100 tends to act, and the scaffolding stage member becomes unstable. By connecting and integrating the wire 15 as a connecting member to the first main body frame connecting portion 16 provided for each of the pair of hanging scaffold main body frames 6, the posture of each of the hanging scaffold main frame 6 is stabilized, and therefore the scaffolding is safe. You can work on the stage members.
4. When a pair of suspension scaffolds 1 for bridges are provided and a pair of suspension scaffold body frames 6 are arranged on the left and right sides of the bridge 100 as shown in FIG. 28, the upper parts of the pair of suspension scaffold body frames 6 are placed on each other. A bridge suspension scaffolding device provided with a rigidly connectable connecting frame 14 may be configured. In this case, after a pair of bridge suspension scaffolding 1s are arranged on the left and right sides of the bridge 100, they can be used as connecting members. By rigidly connecting the upper parts of the pair of suspension scaffolding body frames 6 with the connecting frame 14, the pair of suspension scaffolding 1 becomes strong and can stably support the worker even if the load applied to the scaffolding stage member fluctuates. The safety can be further improved.
That is, even if the scaffolding stage members attached to the pair of suspension scaffolds for bridges are fully retracted from the underside of the bridge and overhang to the outside, the scaffolding is stable, for example, under the bridge. When a pair of bridge suspension scaffolds connecting stage members are moved along the longitudinal direction of the bridge to change the inspection and repair position, even if the pier of the bridge becomes an obstacle, each scaffold stage member can be used. If they are separated from each other and overhang to the outside, continuous work can be performed while moving while avoiding obstacles to the bridge piers without having to re-install the suspension scaffolding body frames with a crane.

The present invention can be used, for example, as a temporary suspension scaffold for structural investigation, inspection, repair work, etc. of a small-scale bridge having a bridge width of less than 5 m.

1 Suspended scaffolding 6 Suspended scaffolding body frame 7 Supporting leg member 8 Supporting part 9 Hinge part 10 Stage holder part 11 Caster 12 Scaffolding stage member connecting part 14 Connecting frame 15 First body frame connecting part

Claims (2)

A scaffolding stage member that crosses the bridge on the lower surface side of the bridge and a support portion for attaching a support leg member for grounding to the road surface of the bridge are provided in the upper part, and the scaffolding stage member can be connected and held in the lower part. A pair of suspension scaffolds for bridges, which are provided with a suspension scaffold body frame equipped with a stage holder, are provided separately.
The support portion is the suspended scaffold toward the center side in the width direction of the bridge so that the support leg member can be attached to the road surface of the bridge so as to be grounded in a state where the suspension scaffold main body frame is arranged on the lateral side of the bridge. It extends from the top of the main frame,
The support leg member is provided with casters at a ground contact portion of the bridge with respect to the road surface, and the suspension scaffold main body frame is movably configured in the longitudinal direction of the bridge.
The scaffolding stage member is slid in the width direction of the bridge and assembled to the stage holders provided on each of the pair of suspension scaffolds for bridges so that one end thereof can move in and out. When a pair of the hanging scaffolding main body frames are arranged on both the left and right sides, one end portions of the scaffolding stage members assembled to the respective stage holders are brought close to each other to provide a scaffolding stage member connecting portion that can be freely connected. Prepare a bridge suspension scaffolding device that allows the bridge suspension scaffolding to be freely loaded and unloaded on the truck bed.
One of the bridges while suspending the suspension scaffolding body frame of one of the pair of the bridge suspension scaffolds in a vertical direction in order to lower the bridge suspension scaffolding from the loading platform of the truck. The support leg member is grounded on the road surface of the bridge while being placed on the outside of the bridge across the side parapet.
While suspending the suspension scaffold main body frame of the other suspension scaffold for the bridge in a posture along the vertical direction, the suspension scaffold is arranged outside the bridge across the railing on the other side of the bridge, and the support leg member. Ground to the road surface of the bridge
After the pair of suspension scaffolds for bridges are unloaded from the truck bed, the truck bed and each of the suspension scaffold body frames are temporarily fixed and fixed via temporary fixing wires.
One end of each of the scaffolding stage members in the pair of bridge suspension scaffolds is slid from the stage holder portion so as to be close to each other in the width direction of the bridge.
After the scaffolding stage members are connected to each other via the scaffolding stage member connecting portion and held between the scaffolding stage holder portions, the temporary fixing wire is removed and the truck is removed.
A method for installing a suspension scaffolding device for a bridge, which is movably installed in the longitudinal direction of the bridge. The upper ends of the suspended scaffolding body frame are connected and integrated via a connecting member, and one ends of the scaffolding stage member are connected to each other via the scaffolding stage member connecting portion, and then along the longitudinal direction of the bridge. When moving and changing the inspection / repair position,
The method for installing a suspension scaffolding device for a bridge according to claim 1, wherein each of the scaffolding stage members is slid so as to be separated from each other in the width direction of the bridge, and moves by avoiding an obstructive pier.

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