JPH0270806A - Inspecting and repairing device for bridge - Google Patents

Abstract

PURPOSE:To make the inspection and repairing of bridge easier by a method in which an operating scaffold supported through a scaffold mover and a fitting part on a vehicle is positioned right below a bridge and the scaffold is separated from the mover to be allowed to travel along the bridge. CONSTITUTION:An operating scaffold 9 to be moved along a bridge on a supporter 1a on the bridge side in a detachable manner, a vehicle 2 to travel on the bridge, a scaffold mover provided on the vehicle, and a fitting part 14 to detachably attach the scaffold 9 are provided. The scaffold 9 supported through the fitting parts 11 and 12 is positioned right below the bridge 1 by the mover on the vehicle, and a traveler 15 on the scaffold 9 side is put on rails 1a provided on both sides of the bridge 1. The fitting part 14 is released to separate the scaffold 9 and the vehicle 2. The scaffold 9 can thus travel right below the bridge 1 for inspection and repairing.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a device for inspecting and repairing Ia beams.

(Prior art) A conventional bridge inspection/repair device is explained using Fig. 7. (1) is a bridge, (2) is a vehicle (truck-mounted chassis), and (3) is a vehicle (2) on the same vehicle. The attached turntable, (4) is the swing bearing of the turntable (3), (5) is the outrigger 1 (7) is the telescopic boom attached to the turntable (3) so that it can be raised and lowered, and (6) is the A boom cylinder, (8) is a telescopic boom that can be extended and retracted in the vertical direction attached to the tip of the telescopic boom (7), and (9) is a work scaffold attached to the tip of the telescopic boom (8).
) runs on the bridge (1), the outrigger (5
) to stabilize the vehicle (2), extend and lower the telescopic boom (7), extend and retract the telescopic boom (8) vertically, and position the work platform (9) directly below the bridge (1). to inspect the lower painted surface of the bridge (1),
Inspect and repair the welded crank in that area.The bridge inspection/repair equipment shown in Figure 7 uses (1) work scaffolding (
The vehicle (2) supporting the work scaffold (9) occupies the bridge (1) while being supported by the outrigger (5), causing traffic congestion. (■) Work scaffolding (9)! I￥i It is necessary to move the vehicle (2) forward when moving in the longitudinal direction of the beam 1
Moving the work scaffold (9) is complicated. (I [I) The telescoping booms (7) (8) and the work scaffold (9) have a cantilever support structure and require large cross-section members to increase strength. Also, there was a large amount of vibration due to the dynamic load at the tip (work platform (9)).

Not only does it interfere with work, but it is also dangerous. (TV) Although it could be used to inspect the lower painted surface of small bridges and inspect and repair the welded cranks in those areas, it was not suitable for inspecting and repairing large bridges.

Therefore, when large bridges are inspected and repaired, 9 inspections are carried out, and 3 temporary scaffoldings are set up at the repaired areas, and 1 worker performs inspections on the same scaffolding.

Repair work is being carried out. Recently, however, many large bridges have been constructed, and the amount of inspection and repair work that must be carried out at high places has become enormous.Therefore, there is an increasing demand for safety, labor saving, and cost reduction in the three types of work. As mentioned above, it is dangerous to erect scaffolding at a high place every time inspection or repair work is to be carried out, and then to disassemble it three times when the inspection or repair work is completed. In addition, there was a problem that it required a lot of effort and time, had poor performance in two operations, and required a large amount of cost.

The present invention addresses the above-mentioned problems, and includes a work scaffold that is removably supported by a supporting member on the bridge side and can be moved directly under the bridge along the bridge, and a vehicle that can run on the bridge. , a bridge inspection/repair device characterized in that it is equipped with a working scaffold moving device provided on the same vehicle, and a mounting device for detachably attaching the working scaffold to the working scaffold moving device. The objective is to quickly inspect and repair not only small bridges but also large beams.

Improved bridge inspection that can be carried out safely - The bridge inspection and repair device of the present invention is removably supported by the support member on the bridge side as described above, and the bridge inspection and repair device of the present invention is removably supported by the support member on the bridge side, and the bridge inspection and repair device of the present invention is removably supported by the support member on the bridge side, and the bridge inspection and repair device of the present invention A work scaffold that can be moved along a beam, a vehicle that can run on a beam having the same, and a moving device for the work scaffold installed on the vehicle;
Attach the above-mentioned work scaffold to the work scaffold moving device n', 'i,
It is equipped with a mounting device that can be freely attached, and when the vehicle runs on the bridge and stops, the work scaffold moving device on the vehicle positions the supported work scaffold directly under the bridge via the mounting device. Then, the traveling device on the work scaffold side is placed on the track member on the bridge side, and the mounting device is then released, and the work scaffold moving device on the vehicle side and the work scaffold are separated.

After that, the work scaffolding will run along the bridge directly under the bridge and perform one inspection and repair (H'l), and once the inspection and repair are completed, the work scaffold will be recovered in the reverse manner to the above. Not only small bridges but also large bridges.

Inspections and repairs can be done quickly and safely.

(Example 1) Next, the bridge inspection/repair device of the present invention will be explained using an example shown in Fig. 1.23. (1) is a bridge, (2)
is a vehicle (truck-mounted chassis) with wheels (18), (3) is a turntable mounted on the vehicle (2), (4) is a swing bearing of the turntable (3), and (17) is an outrigger. -9 (7) is a telescopic boom attached to the turntable (3) so that it can be raised and lowered, (6)
is the boom cylinder, (811) is the boom (7)
) A telescopic boom that can be extended and retracted in the vertical direction attached to the tip of the
(8b) is the same telescopic boob L, the swivel device attached to the tip of (8a), (8c) is the table attached to the same swivel device (8b), (II) (+2) is the same table (8c)
The mounting device (9) attached to the work scaffold is a work scaffold, and the work scaffold (9) can be detachably attached via the mounting devices (11) and (12). In addition, (14) is the coupling device installed on the work scaffold (9), (15) is the traveling vehicle'FQ installed on the work scaffold (9), and (1(i) is the connection device installed on the work scaffold (9)). It's a handrail.

(Function) Next, the function of the bridge inspection/repair device will be explained with reference to FIG. 2-3. When the vehicle (2) (2) runs on the bridge (1) and stops, the outrigger (17) is extended to fix the vehicle (2) (2).

At this time, II+, both (2) (2) is the table (8
c) Working scaffolds (9) (9) are being installed on (8c) via attachment devices (11) (12). Next, each vehicle (2) extends and lowers the telescopic boom (7), and also extends and contracts the telescopic boom (8a) in the vertical direction to position one work platform (9) directly below the beam (1). let With this operation, 9 work scaffolds (9) (9)
The running small wheels (15) (15) ride on the running paths (la) (la) provided on both sides of the bridge (1).

The working scaffolds (9) (9) are then connected by means of a connecting device (14) to integrate them with each other. In the example shown in Figure 2.

A hydraulic jack is used for the connection device (14).

With the above operations, the work scaffolding (9) (9) is supported in a movable position directly under the bridge (1), but in this state, the mounting devices (11) (12) are released. 2
The work scaffold (9) (9) side and the vehicle (2) (2) side are separated (see Figure 3), and after that, there is only one work scaffold (9)
Travel path (la) provided by (9) on both sides of bridge (1)
One inspection and repair will be carried out by driving along (la). On the other hand, the vehicle (2) separated from the 1 work scaffold (9) (9) (2
) does not need to remain on the bridge (1) and immediately leaves the bridge (1). By making the glue and t in FIG. 3 variable, it can be used for various types of bridges (1). Moreover, when a railway track is laid on the bridge (1), each of the above-mentioned devices is installed in a railway vehicle and the same effect is performed.

(Example ■) Figure 4 shows a structure in which nine work scaffolds (9) are integrated without being separated, while a base frame (20
), and extendable frames (21) (21) are provided on both sides of the base frame (20), and the base frame (20) is
Hydraulic jacks (22) (22) for extending and contracting the telescopic frames (21) (21) are provided inside the telescopic frames (21) (21), and wheels (23) are installed at the tips of the telescopic frames (21) (21).
(23) is provided.

bridge! The same wheels (2) are placed on both sides (la) (la) of e (1)
3) When the rolling rail (23) (23) (23) is installed and the 1 work scaffold (9) is positioned directly under the bridge (1), the telescopic frame (21) (21) is extended. and the wheels (23) (23) to the rails (23) (23)
Place the 2nd work scaffold (9) on top of the bridge and run it along the bridge (1), then release the mounting device (11) and move the 9th work scaffold (9) side and the vehicle (2) side. Another implementation was to separate the work scaffolding (9) from the bridge and then make one inspection and repair work by moving one work scaffold (9) along the travel path (LA) (LA) provided on both sides of the bridge (1). In the example, the same actions as in the previous example are performed. In addition, the wheels (23) (23) are.

There is no problem in replacing it with tire-type wheels, etc., and the telescopic frame (21) and hydraulic jack (22) can also be replaced with other mechanisms such as links.

(Example ■) Figures 5 and 6 show a plurality of L-shaped members (l-shaped members) on the underside of a bridge (1).
b) (This L-shaped member (lb) may be installed in advance or may be installed during inspection or repair.)
In a further embodiment suitable for the case where the 1b is fixed, the lower horizontal part of each 1b is used for the rail. That is, each of the five work scaffolds (9) (9) is composed of three expandable parts (9a) (9b) (9c),
A frame (25) is fixed to the inner part (9a) of each work scaffold (9), and a frame (25) is fixed to the middle part (9b).
25) is removably attached to each frame (25).
A wheel (26) that moves on the lower horizontal part of each L-shaped member (1b) and a motor (27) that drives the wheel (26) are provided at the upper end of the outer frame (25). Rare.

Each of the above-mentioned L-shaped members (
Each part (9a) of the 9 working scaffold (9) (9) is fixed with an inverted member (28) that engages the lower horizontal part of 1b) (9).
9b) (9c) Telescopic frame (29) (3
0) (31) is installed and each work scaffold (9)
Place one side directly under the bridge (1) and make the 1st ring (26)
on the lower horizontal part 2 of the outer L-shaped member (1b), and place the inverted member (28) on the lower horizontal part 2 of the inner L-shaped member (Ih). 9)
Support the other working scaffold (9) in the same manner, connect the working scaffold (9) to the connecting device (14), and then remove the two inner wooden frames (25). Then, 1 work scaffold (9) (9) becomes like a - platform self-propelled trolley, and the L-shaped members (1) on both sides of the bridge (1)
Carry out 1 inspection and repair by driving along the route b).

(Effects of the Invention) As described above, the bridge inspection/repair device of the present invention includes a work scaffold that is removably supported by a support member on the bridge side and can be moved directly below the bridge along the bridge; The vehicle is equipped with a vehicle capable of traveling on a bridge, a work scaffold moving device installed on the vehicle, and a mounting device for removably attaching the work scaffold to the work scaffold moving device. Run,
When the vehicle stops, the work scaffold moving device on the vehicle positions the work scaffold supported via the attachment device directly under the bridge,
Place the traveling device on the scaffolding side on the track section Murakami on the bridge side 1
Next, the attachment device is released, the work scaffolding moving device on the vehicle side is separated from the work scaffolding, and the work scaffolding then runs directly under the bridge along the bridge to carry out two inspections, repairs, and inspections. Once the repair is completed, the work scaffolding is recovered in the reverse manner to the above, so it can be used not only for small bridges but also for large 41' bridges.
Even with 7 beams.

This has the effect of allowing inspections and repairs to be carried out quickly and safely.

Although the present invention has been described above with reference to examples, the present invention is, of course, not limited to these examples, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the bridge inspection/repair device according to the present invention, and FIG. 2 is a side view showing the state when the same inspection/repair device is attached to the bridge. Figure 3 is a side view showing the same inspection and repair equipment after the vehicle has left;
FIG. 4 is a side view showing another embodiment, and FIG. 5 is a side view showing another embodiment in the middle of being installed on a bridge.
Figure 6 is a side view showing the final state, and Figure 7 is a perspective view showing conventional bridge inspection/repair (+2 equipment). (1)...Bridge, (la)...Bridge side Supporting member (2)...vehicle, (7) (8a) (8h)
(8c)...Moving device for work scaffolding, (9)...
Work scaffold, (]/I)...Mounting device.

Claims (1)

[Claims] A work scaffold that is removably supported by a supporting member on the bridge side and can be moved directly under the bridge along the bridge, a vehicle that can run on the bridge, and a work scaffold moving device installed on the vehicle. and a mounting device for removably attaching the work scaffold to the work scaffold moving device.