JP2001032215A - Pier repairing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pier repairing device which can be assembled with a simple structure, and easily retracted even when a pier is high. SOLUTION: The pier repairing device comprises suspension members 7 to be suspended from outer peripheries of a traveling girder 12, a horizontal member 3 to connect both suspension members 7 to each other at the position below an expansion support part 11, and an elevating/lowering elevating/ lowering base 5 to be suspended from the horizontal member to surround the periphery of a pier 1. It further comprises an elevating/lowering device for elevating/lowering base 5, a horizontal working floor 2 mounted on the horizontal member 3 and located below the expansion support part 11, and an inclined floor 4 tiltably formed on a part of the working floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus for repairing a pier of a road bridge or a railway bridge.

[0002]

2. Description of the Related Art Road and rail running girders are supported by piers. For this purpose, an enlarged support portion for supporting the traveling girder is formed in the upper part of the pier. When the underside of the traveling girder and the periphery of the bridge pier are damaged, if the pier has a large area and a good foothold, it is easy for the work vehicle to approach and repair from the lower part. However, when the pier cannot be approached from below, such as a pier standing underwater or on a steep slope, a scaffold is conventionally constructed and repaired as shown in FIG. In other words, hanging members from both sides of the girder of the road or railway,
The suspension members on both sides are connected by a horizontal member. This horizontal member is located below the enlarged support at the upper end of the pier 1.
Then, a floor plate is stretched over the horizontal member, and the uppermost work floor a is set in a space below the enlarged support portion. Next, the lowermost work floor a is connected to the uppermost work floor by a pipe or a chain, and the lower work floor a is installed in the air. In this way, a device for installing a multi-stage work floor a in the air around the pier 1 is employed.

[0003]

The conventional pier repair device as described above has the following problems. <B> As the height of the pier 1 increases, the number of steps on the work floor a increases so that the worker can reach any position. <B> For this reason, although it is a temporary work before the original repair work is started, a large number of workers are required only for installation of the work floor a, and a large schedule is required. <C> In the work to repair the pier 1 at sea, the work floor a must be evacuated when a typhoon occurs. However, since it is a configuration in which a multi-stage work floor a is hung below the traveling girder,
It cannot be evacuated easily.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems. Even if a tall pier is used, it can be assembled with a simple structure and can be easily evacuated. It is intended to provide a device.

[0005]

In order to achieve the above object, a bridge pier repair device according to the present invention comprises a traveling girder for roads and railways, an enlarged support portion for supporting the traveling girder, and a lower portion of the enlarged support portion. A suspension member suspended from both outer peripheries of the traveling girder, a horizontal member connecting the both suspension members at a position below the enlarged support portion, and a lifting member suspended from the horizontal member and surrounding the pier. A table, a lifting device for lifting the lifting table, and a horizontal work floor attached to the horizontal member, which is located below the enlarged support, and a tiltable inclined floor formed on a part of the work floor, Bridge pier repair device.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

<A> The shape of the pier. The pier 1 to be repaired supports the traveling girder 12 of a road or a railway as described above. For this purpose, an enlarged support portion 11 for supporting a traveling girder 12 is formed at the uppermost portion of the pier 1 having a cross section of a cylinder, a prism, or an ellipse.

<B> Hanging member 7. The suspension member 7 is suspended vertically from the outer periphery of the railing on both sides of the traveling girder 12. All the weight of the device is supported by this hanging member 7. The hanging member 7 or a horizontal member 3 described later can be formed of, for example, a square pipe. With a structure in which the square pipes are connected to each other with pins, even unskilled workers can quickly assemble them at precise positions.

<C> Horizontal member 3 The two hanging members 7 are connected by the horizontal member 3. The horizontal member 3 is located below the enlarged support portion 11 of the pier 1.

<D> Horizontal work floor 2. Two sets of the hanging member 7 and the horizontal member 3 are installed, and a floor plate is stretched between them. Then, a horizontal work floor can be developed under the enlarged support portion 11. As described above, the conventional apparatus has a configuration in which the horizontal work floor 2 having this configuration is suspended by a number of steps, but in the apparatus of the present invention, the enlarged support section 1 is suspended.
It is only necessary to arrange one horizontal work floor 2 under 1. The work in the above steps can be performed by extending the arm of a known work under the girder installed on the girder.

<E> Inclined floor 4. Since the work floor is attached to the horizontal member 3, the work floor is a floor on the same plane, but a part of the work floor is provided with an inclined floor 4 which can be inclined. The sloping floor 4 is a floor on which the outer side is fixed with a pin shaft, and the inner side (the pier 1 side) can be inclined or pulled up as required to make it horizontal. In the inclined state, the worker can repair the lower surface of the enlarged support portion 11 with the back extended without taking an unnatural posture. However, when the elevator 5 to be described later is pulled up to the uppermost part, the inclined floor 4 is made horizontal so that a space for the elevator 5 can be secured.

<F> Lifting platform 5 The elevator 5 is hung from a horizontal member via a chain 6.
The elevating platform 5 is a working platform having a shape surrounding the pier 1, and has a circular or rectangular hollow hole in the center according to the cross-sectional shape of the pier 1. An elevating device such as a chain block is attached to the chain 6 that suspends the elevating platform 5. Therefore, the worker can operate the chain block and the like to move up and down the elevator 5 while riding on the elevator 5. ,

<G> Sheet cylinder 8. The sheet cylinder 8 is suspended from the elevating table 5. The sheet tube 8 is a flexible sheet surrounding the underwater portion of the pier 1 and has a lower end open. The sheet cylinder 8 is slidably attached to the elevator 5 via a rope or a long member without moving up and down together with the elevator 5. Then, the worker can slide to keep the position of the seat tube 8 at the lowermost end of the pier 1 in accordance with the elevation of the elevator 5.

<H> During repair work. Using the apparatus of the present invention, the lower surface and the peripheral surface of the enlarged support portion 11 and the surface of the pier 1 are repaired. Expansion support 1
The repair of 1 is performed by a worker on the horizontal work floor 2. Since the lower surface of the enlarged support portion 11 is inclined, the repair of the surface is performed while riding on the inclined floor 4. The repair of the pier 1 is performed while the lifting platform 5 is suspended or lifted. Since the elevating platform 5 can be easily moved up and down by a chain block or the like, no matter how high the height of the pier 1 is, only one elevator platform 5 can repair all positions.

<Re> At the time of evacuation. The occurrence of typhoons and high waves can be known in advance by weather forecast. In that case, the lift 5 is pulled up to the top. At that time, the inclined floor 4 is also pulled up horizontally. Therefore, the elevator 5 can be stored in a state in which it is in close contact with the lower surface of the horizontal floor.

<Nu> Prevention of contamination. The underwater portion of the pier 1 is surrounded by a sheet tube. Therefore, even if a piece of concrete or a part of drainage from the hanging work flows down in the repair work, a certain settling time can be secured without diffusing the turbid water.

[0017]

Since the present invention is as described above, the following effects can be achieved. <B> In the event of a typhoon or the like, one elevating platform 5 can be quickly evacuated simply by moving it up to the top. Therefore, unlike a conventional multi-stage work table, it does not require time for dangerous evacuation work, and is extremely safe. <B> Regardless of the height of the pier 1, it is not necessary to attach a multi-stage work floor as in the related art, and the entire surface can be repaired by raising and lowering one elevator 5. <C> Therefore, it does not require a large amount of materials as in the related art, requires only a short assembling time, and is extremely economical. <D> Since the temporary construction process for the original repair work does not require much time, high-quality repair work can be completed in a short construction period. <E> Since only one horizontal work floor 2 and one elevating platform 5 are formed, the overall weight is extremely small. Therefore, the weight of the upper structure supporting the same can be significantly reduced, which is more economical. <F> In the case of the pier 1 on the sea, if the underwater portion of the pier 1 is surrounded by the flexible sheet tube 8, the seawater will not be polluted and the influence of the repair work will not affect the environment. .

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of a pier repair device of the present invention.

FIG. 2 is an explanatory view of an embodiment of the pier repair device of the present invention.

FIG. 3 is an explanatory view of a state surrounding an underwater portion of a pier.

FIG. 4 is an explanatory view of a conventional pier repair device.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Atsushi Matsushita Atsushi Matsushita 38-3, Okinome, Harue-cho, Sakai-gun, Fukui Prefecture F-term (reference) 2D059 AA03 EE02 EE10 GG39

Claims (2)

[Claims] 1. A traveling girder of a road or a railway, an enlarged support portion for supporting the traveling girder, and a pier below the enlarged support portion, a suspension member suspended from both outer circumferences of the traveling girder, and a space between the both suspension members. , A horizontal member connected at a position below the enlarged support portion, a lifting platform suspended from the horizontal material and surrounding the pier, a lifting device for lifting and lowering the lift platform, and an expansion support portion attached to the horizontal member. A pier repair device consisting of a horizontal work floor located below and a tiltable floor formed on a part of the work floor. 2. The elevator according to claim 1, wherein a seat cylinder is suspended from the elevator, and the seat cylinder surrounds an underwater portion of the pier, and the seat cylinder is slidably attached to the elevator. Bridge pier repair equipment.