JPH101902A - Elevated railway - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the vibration noise of trains passing therethrough by fixing crossties on the support member secured on the beam, and interposing a noise insulating material in a space defined between the crossties and the beam. SOLUTION: A pair of support members 5 of concrete crossties 3 are arranged face to face on the beam 2 to then be fixed by anchor bolts or the like. Crossties 3 are mounted on the support members 5 and both the ends are fixed by both the ends thereof by bolts or the like, then rails 4 are laid on the crossties 3. A noise insulating material 6, e.g. sand, rubber or the like is filled in the space defined between the crossties 3 and the beams 2 below thereof. The vibration generated upon trains pass on the rails 4 is transmitted on the crossties 3 via the rail 4, however, since the noise insulating material 6 is disposed beneath the crossties, the noise insulating material 6 absorbs vibration noise generated due to the vibration of the crossties 3, resulting in the reduction of noise.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevated railway.

[0002]

2. Description of the Related Art As shown in FIG. 3, an elevated railway lays soil and gravel 10 on a girder 2 laid on a pier 1 in the same manner as a normal railway, as shown in FIG. It is laid and the rail 4 is supported by the sleeper 3.

[0003]

The elevated railway has an advantage in that, for example, the space below the girder can be used, but the vibration of the train via rails on railroad ties laid when the train passes by is used. Is transmitted, the sleepers vibrate, and the vibration noise caused by this is large.

[0004] It is an object of the present invention to provide an elevated railway capable of solving the disadvantages of the conventional example and reducing the noise when passing through the train.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an elevated railway in which a rail is laid on a girder erected on a pier, a sleeper for supporting the rail on a support member fixed on the girder. In a space formed between the sleeper and the girder by the support member, and a sound insulating material is interposed between the railroad bridge and the rail, and the rail support member is laid on the bridge pier. Is provided integrally with the girder, and the rail is supported by the support member.

According to the first aspect of the present invention, the sound insulating material interposed between the sleeper and the girder absorbs the vibration noise generated due to the vibration of the sleeper when passing through the train, thereby reducing the noise. I do.

According to the second aspect of the present invention, since the support member for supporting the rail is integrally formed with the spar, the sleeper can be omitted, thereby reducing the noise caused by the sleeper.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a first embodiment of an elevated railway according to the present invention, and the same components as those in the conventional example shown in FIG. 3 are denoted by the same reference numerals.

In the elevated railway according to the present invention, a concrete girder 2 is erected on a concrete pier 1. According to the present invention, a concrete sleeper 3 is mounted on this girder 2.
Was laid. The support member 5 is made of, for example, concrete and formed in an angle shape, and a pair of the support members 5 are arranged so as to face each other, and are fixed to the beam 2 with, for example, anchor bolts.

[0010] Then, the sleeper 3 is placed on the support member 5 and both ends thereof are fixed with bolts 9 or the like, and the rail 4 is laid on the sleeper 3. As an example of the means for fixing the rail 4 to the sleeper 3, the lower part of the U-shaped mounting hardware 8 is
And a flange portion of the rail 4 is fixed to the upper protruding portion with a bolt 7. The supporting member 5 is a girder 2
Alternatively, it may be formed separately and fixed to the girder 2 with the anchor bolts as described above, or may be formed integrally with the girder 2 using concrete.

A space formed between the opposing support members 5 and below the sleepers 3 and between the girders 2 is filled with a sound insulating material 6 such as sand or rubber.

Next, the operation will be described. The vibration generated when the train passes on the rail 4 is transmitted to the sleeper 3 via the rail 4, but the sound insulating material 6 is interposed below the sleeper. The sound insulating material 6 absorbs the vibration noise generated due to the vibration of the sleeper 3, and the noise is reduced.

FIG. 2 shows a second embodiment, in which a support member 5 of a rail 4 is formed integrally with a spar 2 and the rail 4 is directly disposed on the support member 5 and fixed to a sleeper. And fixed with mounting hardware 8, bolts 7, and the like. As a result, the sleeper 3 which is a cause of the vibration noise can be omitted, and the vibration noise when the train passes on the rail 4 is reduced.

As shown in FIG. 2, the support member 5 may be formed as a separate member for each of the two rails 4 so as to have a ridge substantially equal to the width of the rails 4. 1
Two members 4 may be supported by one member.

Although not shown, a sound insulating material can be laid on the beam 2 in the second embodiment. In this case, the noise is sufficiently reduced by omitting the sleepers 3, but the noise can be further reduced by adding a sound insulating material.

[0016]

As described above, the elevated railway of the present invention
The vibration noise generated from the sleepers when passing through the train is absorbed, and the sleepers that cause the vibration noises are omitted, so that the noise can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of an elevated railway according to the present invention.

FIG. 2 is a perspective view showing a second embodiment of the elevated railway according to the present invention.

FIG. 3 is a perspective view showing a conventional elevated railway.

[Explanation of Signs] 1 ... Pier 2 ... Girder 3 ... Sleeper 4 ... Rail 5 ... Support member 6 ... Sound insulation 7 ... Bolt 8 ... Mounting hardware 9 ... Bolt 10 ... Gravel

Claims (2)

[Claims] In an elevated railway in which a rail is laid on a girder erected on a pier, a sleeper for supporting the rail is fixed on a support member fixed on the girder, and the support member interposes between the sleeper and the girder. An elevated railway characterized by interposing sound insulation in the space formed. 2. An elevated railway in which a rail is laid on a girder erected on a bridge pier, wherein a rail support member is integrally provided with the girder, and the rail is supported by the support member.