JPH08253911A - Rail of bridge inspection car - Google Patents

Abstract

PURPOSE: To enhance wind resistance stability of a bridge. CONSTITUTION: An opening 9, which easily passes wind, is made on a web face 7 of a rail main body 2 installed along a bridge. The wind, that strikes against a bridge girder blows through the opening 9 and is divided into fine parts and turned into a smooth flow, thereby preventing the generation of a large swirl and hence protecting the bridge from vibrations caused by the whirl- pool. Since the opening 9 is installed to the rail main body 2, the thickness of the web face 7 is increased to such an extent that it may cover the opening 9, thereby eliminating any problems about the strength of the rail. Even if the opening 9 is installed, there occurs no problem which may damage the scenery view.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail of an inspection vehicle for inspecting and inspecting a bridge.

[0002]

2. Description of the Related Art Conventionally, a rail of an inspection vehicle for inspecting and inspecting a bridge girder or the like of a bridge is attached to a lower portion of the bridge girder along the bridge girder, and the inspection vehicle moves along the rail. A conventional example of the rail of this bridge inspection vehicle will be described with reference to FIGS. 4 to 6. 01 is a bridge girder having a flat hexagonal sectional shape, 02,
Reference numeral 02 denotes an I-shaped rail main body, and the I-shaped rail main bodies 02 and 02 are attached to the lower surfaces of the widthwise end portions of the bridge girder 01 in parallel with the longitudinal direction of the bridge girder 01 via attachment ribs 03 and 04. ing.

For each of the above 02, I-type steel and H-type steel are generally used.

[0004]

It has become clear that the rail of a bridge inspection vehicle adversely affects wind resistance stability depending on its installation position. Even if the cross-sectional shape of the bridge body is excellent in wind stability, wind stability may be impaired depending on the installation position of the inspection vehicle rail. The location is verified and applied to the actual bridge, but it is the current situation.

The cause of such deterioration of wind resistance stability is shown in FIG.
This is because the wind 05 that hits the bridge girder 01 becomes a flow that is largely separated from the rail 02, as shown in FIG. Therefore, the bridge girder 01 has a problem that vibration is excited and wind resistance stability is impaired.

The present invention has been proposed in view of the above problems, and an object thereof is to provide a rail of a bridge inspection vehicle capable of improving the wind resistance stability of the bridge.

[0007]

In order to achieve the above object, the present invention relates to a rail of an inspection vehicle for inspecting and inspecting a bridge, in which air is passed through a web surface of a rail main body provided along the bridge. An opening is provided to make it easier.

[0008]

The rail of the bridge inspection vehicle of the present invention is provided with an opening for facilitating the passage of air on the web surface of the rail main body provided along the bridge as described above. It becomes a smooth flow along the bridge and does not become a large vortex, and vibration due to the vortex of the bridge is prevented.

[0009]

EXAMPLE Next, a rail of a bridge inspection vehicle of the present invention will be described with reference to an example shown in FIG. 1. Reference numeral 1 is a bridge girder having a flat hexagonal sectional shape, 2 and 2 are rail bodies having an I-shaped section, 7
Is the web surface of the rail main body 2, 8 and 8 are the rail main body 2
Upper and lower surfaces 9 are a large number of round-shaped openings provided for facilitating the passage of air through the web surface 8. Rail bodies 2 and 2 are mounted parallel to the longitudinal direction of the bridge girder 1.

FIG. 2 shows another embodiment having the same configuration as that of FIG. 1 except that the openings 10 provided in the web surface 7 of the rail body 2 are formed in a triangle shape and alternately in a forward and reverse direction to form a truss shape. Is. Next, the action of the rails of the bridge inspection vehicle shown in FIGS. 1 and 2 will be specifically described with reference to FIG.

The rail body 2 provided along the bridge 1 is provided with an opening 9 (or 10) for facilitating the passage of air through the web surface 7, and the wind 5 hitting the bridge girder has the opening 9 (or 1).
0), it is subdivided into a smooth flow along the bridge (see 5 and 6) and does not form a large vortex, and vibration due to the vortex of the bridge is prevented. By increasing the plate thickness of the web surface 7 by the amount that the rail main body 2 is provided with the opening, there is no problem in strength. Moreover, even if an opening is provided,
It does not damage the landscape.

[0012]

As described above, the rail of the vehicle for inspecting a bridge of the present invention is provided with an opening for facilitating the passage of air on the web surface of the rail body provided along the bridge. After that, it is subdivided into a smooth flow along the bridge, a large vortex is not generated, and vibration due to the vortex of the bridge is prevented, so that the wind resistance stability of the bridge can be improved.

[Brief description of drawings]

1A is a side view showing an embodiment of a rail of a bridge inspection vehicle of the present invention, and FIG. 1B is a front view showing a part thereof.

FIG. 2 (a) is a side view showing another embodiment of a rail of a bridge inspection vehicle of the present invention, and FIG. 2 (b) is a front view showing a part thereof.

FIG. 3 is an explanatory view of the operation of the rail.

FIG. 4 is a front view showing a rail of a conventional bridge inspection vehicle.

FIG. 5 is a perspective view of the rail.

FIG. 6 is a side view of the rail.

[Explanation of symbols]

 1 bridge girder 2 rail main body 3, 4 mounting rib 7 web surface of rail main body 8 upper and lower surface of rail main body 9 opening

Claims (1)

[Claims] 1. A railroad car for inspecting and inspecting a bridge, characterized in that an opening for facilitating ventilation is provided on a web surface of a rail main body provided along the bridge. rail.