JPH0757922B2 - Bridge sleepers and laying structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a bridge sleeper used at a bridge end portion of a railway track or the like, and a laying structure thereof.

(Prior Art) Conventionally, as a bridge sleeper used at a bridge end portion of a railway track or the like, as shown in FIG. 4, it is the same as a sleeper c mounted on a bridge girder b on which a track rail a is laid, It has a rectangular cross section and is laid on the upper surface f of the abutment e on the side of the abutment e on which the bridge end d is placed.

Further, as the bridge sleeper laying structure, as shown in FIG. 4, a sleeper having the same size and shape as the sleeper c mounted on the bridge girder b on which the track rail a is laid has the bridge end portion d mounted thereon. The structure is laid on the upper surface f of the completed abutment e,
The ballast h, such as gravel, which is laid on the back side of the abutment e does not flow out to the river valley on the bridge side.

(Problems to be solved by the present invention) By the way, in the above-mentioned conventional technology, the structure of the abutment e on which the bridge sleepers c are laid is made of concrete or masonry, and the upper surface f of these structures is inclined. In the case of the surface or the uneven surface, even if the sleeper c is placed on such an upper surface f of the vehicle body and the track rail a is laid on the sleeper, the track rail a is stably placed at a predetermined level position. Can not be laid in. Actually, in order to adjust the level position of the sleepers c to be laid, the bottom surface of the bridge sleepers c is cut at the site in accordance with the upper surface f of the abutment e. In addition, when the upper surface f of the vehicle body has an uneven surface, the bottom surface of the sleeper c is aligned with the uneven surface so that the ballast forming ball h does not flow out from the gap between the upper surface f of the vehicle body and the bottom surface of the sleeper c. Is processed to have irregularities. Since dimensional accuracy is required for these works, a considerable amount of time is required for on-site construction.

It is an object of the present invention to provide a bridge sleeper and its laying structure that do not require any trouble in on-site construction even when the bridge sleeper is laid along the upper surface of the abutment body.

(Means for Solving the Problem) The bridge sleeper of the present invention is a sleeper laid outside the bridge end, and a spacer having a predetermined thickness is provided on the lower surface of the sleeper body at a fixed position of the track rail. The cover material with a narrow width of about the same length as the sleeper body is attached to the side surface of the sleeper body along the longitudinal direction and the lower edge of the cover material is lower than the bottom surface of the sleeper body. It is characterized in that it is projected downward to a size substantially the same as the thickness of the spacer.

Further, the laying structure of the laying sleeper of the present invention, on the upper surface of the abutment on which the bridge end is placed, the sleeper body is provided with spacers of a predetermined thickness provided at intervals corresponding to the fixed position of the track rail. Placed on the sleeper main body, and a narrow cover material having substantially the same length as the sleeper main body is provided on at least one leaf side surface of the sleeper main body so that the lower end of the cover material comes close to or contacts the upper surface of the body. The rail for rail is laid on the upper surface of the main body of the sleeper.

The sleeper body in the present invention is formed in a columnar body, and in addition to wood, for example, thermosetting resin foam reinforced with long fibers such as glass roving embedded in the longitudinal direction is preferably used. To be

The spacer used in the present invention has good machinability such as machinability and excellent compressive strength, and is preferably made of the same material as the above-mentioned sleepers, so that the material arrangement efficiency is good.

The cover material used in the present invention is not limited to a material, but is the same material as the spacer, which is convenient for arranging the material.

(Operation) When the upper surface of the abutment on which the bridge end is placed is an inclined surface or an uneven surface, the level adjustment of the bridge sleeper is performed by cutting only the spacer part in accordance with the upper surface of the body, This cutting surface may be brought into close contact with the upper surface of the body. Further, the spacers provided at intervals on the lower surface of the sleeper body form a gap between the lower surface of the sleeper body and the upper surface of the vehicle body, but the cover material can prevent the ballast forming ballast from flowing out. .

(Example) Hereinafter, one example of the bridge sleeper of the present invention and its laying structure will be described with reference to the drawings.

FIG. 1 is a perspective view showing an example of a bridge sleeper of the present invention, and FIG. 2 is a sectional view showing an example of a laying structure of the bridge sleeper.
In FIG. 1, reference numeral 1 denotes a sleeper body, which is, for example, a columnar body made of thermosetting resin foam reinforced with long fibers such as glass roving.

Reference numeral 2 denotes a spacer having a predetermined thickness, which is manufactured from the same material as the sleeper main body, and is fixed to the lower surface 11 of the sleeper main body 1 with an adhesive or the like corresponding to the position where the track rails 4, 4 are placed. Has been done.

Reference numeral 3 denotes a narrow cover material having substantially the same length as the sleeper body 1, and may be a plate material made of the same material as the sleeper body. It is attached to one side of the sleeper main body 1 along the longitudinal direction of the leaves. The lower end 31 of the cover material 3 projects below the bottom surface 11 of the sleeper body 1 to a size substantially the same as the thickness of the spacer 2. The lower end 31 of the cover material 3 may be a fin-shaped body made of an elastic material.

Further, in FIG. 2, reference numeral 5 denotes an abutment on which the bridge end is placed, and the bridge seat 51 supports the end 61 of the bridge girder 6. The sleeper body 1 is placed on the upper surface 52 of the abutment 5 through the spacer 2 having a predetermined thickness so as to be at the same level as the sleeper 7 on the land side.

As shown in FIG. 3, the spacer 2 has rails 4 for tracks,
They are provided at intervals corresponding to the four fixed positions.
In addition, the sleeper main body 1 installed has a narrow cover material 3 having substantially the same length as the sleeper main body 1 in the longitudinal direction on the side surface on the back side of the abutment 5, and the lower end 31 of the cover material 3 is Is installed near the abutment upper surface of the abutment with a gap of about 10 mm.

Reference numeral 8 is a ballast-forming ballast such as gravel having a particle size of 2 to 3 cm, which is spread over the back side of the abutment 5 and passes through the underside of the sleeper body 1 by the cover material 3 attached to the sleeper body 1 to bridge side. Is prevented from flowing out to.

In the bridge sleeper laying structure of the present invention, the one having the sleeper main body 1, the spacer 2 and the cover material 3 integrated may be directly carried to the construction site for construction, or one constructed separately. It may be attached to the sleeper body 1 at the construction site.
If the upper surface 52 of the abutment 5 on which the bridge sleepers are laid is an uneven surface as shown in FIG. 3, only the lower surface of the spacer 2 is cut to fit the uneven surface, and the cut surface is made uneven. It may be brought into close contact with the upper surface 52 of the body.

In addition, the degree of unevenness of the upper surface 52 of the driving body is large, and
When it is likely that a gap larger than the diameter of the ballast particles is generated between the cover material 3 and the lower end 31 of the cover material 3, the lower end 31 of the cover material 3 is cut to fit the uneven surface, and the cut surface is uneven. It may be brought into close contact with the upper surface 52 of the body.

In addition, although the adhesive was used for joining the spacer to the sleeper body in the above-mentioned embodiment, the present invention is not limited to this, and the joining structure is such that it can be fitted by mortise processing so that it will not come off due to train vibration. May be.

The cover material may be attached to the sleeper body by fixing with an adhesive, nails, screws, or the like.
It may be appropriately selected according to the size and material of the cover material.

(Effects of the Invention) Since the bridge sleepers and the laying structure thereof of the present invention are configured as described above, the upper surface of the abutment on which the bridge ends are mounted is an inclined surface or an uneven surface. Also, it suffices to cut only the spacer part according to the upper surface of the body,
The cutting time is shortened and the time required for on-site construction in adjusting the level of the bridge sleepers is shortened. Also, the spacers provided at intervals on the lower surface of the sleeper body form a gap between the lower surface of the sleeper body and the upper surface of the vehicle body, but the provision of the cover material prevents the ballast forming ballast from flowing out. Can be prevented. When the lower end of the cover material comes into contact with the upper surface of the projecting body that is an inclined surface or an uneven surface, the lower end of the cover material may be cut in accordance with the upper surface of the projecting body of the abutment. On-site construction time is shortened and it is suitable for use at the bridge end.

[Brief description of drawings]

FIG. 1 is a perspective view of the bridge sleeper of the present invention seen from below, FIG. 2 is a cross-sectional view showing the laying structure of the bridge sleeper of the present invention, FIG. 3 is a perspective view for explaining the main parts of the same, and FIG. It is sectional drawing explaining a prior art example. Explanation of reference numerals 1 ... Sleeper body, 2 ... Spacer, 3 ... Cover material, 4
...... Track rails, 5 ...... abutments, 51 ...... bridge seats, 52 ...... upper surface of the vehicle, 6 ...... bridge girders, 7 ...... row sleepers, 8 ...... ballast forming ballast

Claims (2)

[Claims] 1. A sleeper laid outside a bridge end, wherein spacers of a predetermined thickness are provided on the lower surface of the sleeper body at intervals corresponding to fixed positions of track rails,
A narrow cover material of approximately the same length as the sleeper body is attached along the longitudinal direction on the side wall of the sleeper body, and the lower edge of the cover material is below the lower surface of the sleeper body and has substantially the same thickness as the spacer. Bridge sleepers characterized by protruding dimensions. 2. The sleeper main body is mounted on the upper surface of the abutment on which the bridge ends are mounted via spacers of a predetermined thickness provided at intervals corresponding to the fixed position of the track rail. A cover material having substantially the same length as the sleeper body and a narrow width is attached to at least one leaf side surface of the sleeper body so that the lower end of the cover material comes close to or in contact with the upper surface of the body, A bridge sleeper laying structure in which the track rail is laid on the upper surface.