JPH11148105A - Bridge joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge joint for preventing the occurrence of play in the face plates of the joint. SOLUTION: A bridge joint is so constituted that a plurality of aluminum or aluminum alloy face plates 1 having the front end with comb-like teeth in the form of matching with the comb-like teeth of a base plate are arranged on the base plate 11 having the front end with the comb-like teeth. Each of the face plates 1 is constituted of comb-like teeth 3 forming the teeth of a comb and the base 2 connecting the teeth of the comb to each other. A rubber plate 9 as an elastic member is provided between the comb-like teeth 3 of each of the face plates 1 and base plate 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge joint for connecting a shore and a bridge so that their relative positional relationship is slightly movable.

[0002]

2. Description of the Related Art A shore-side portion and a bridge-side portion are connected by a joint having a shape in which comb-tooth portions are engaged with each other so that they can be slightly approached or slightly separated from each other. ing. The bridge joint has a two-layer structure in which a comb-shaped face plate is similarly superimposed on a comb-shaped base plate having mutually opposing distal ends. The face plate is divided into a plurality of parts, and a plurality of face plates are arranged in a line, and each face plate and the base plate are fixed by bolts and nuts.

[0003] When a face plate is worn due to traffic of a car, the face plate can be removed and replaced. In addition, although the base plate is made of steel, in order to make the degree of wear of the concrete part of the ground part and the bridge part and the face plate the same, so that there is no step on the surface during use,
As the face plate, a cast product of aluminum or an aluminum alloy whose degree of wear by a tire is equivalent to that of asphalt on a road is used.

[0004]

However, in the conventional bridge joint, there is a problem that a backlash is easily generated between the face plate and the base plate as the vehicle comes and goes. This play is due to the fact that the bolts and nuts fixing the face plate and the base plate are loosened. However, it is not possible to frequently retighten the bolts due to road operation. Then, there is a problem that noise is generated when the vehicle is running due to the occurrence of the play.

[0005] The present invention has been made in view of the above problems, and has as its object to provide a bridge joint that can prevent rattling on a face plate of the joint.

[0006]

SUMMARY OF THE INVENTION A bridge joint according to the present invention is a bridge joint for connecting a shore and a bridge with play at their relative positions with a comb-shaped base plate having a comb-shaped tip, A plurality of face plates made of aluminum or an aluminum alloy, each having a plurality of juxtaposed tips arranged in a shape matching the comb teeth of the base plate, wherein the face plate is formed with the comb teeth. And a base for connecting the comb teeth to each other, wherein an elastic member is interposed between the comb tooth and the pace plate.

In the present invention, since an elastic member such as a rubber plate is interposed between the face plate and the base plate, even if the face plate vibrates due to the vibration of the automobile passing through the joint, the face plate may be vibrated. Adhesion between the base plate and the base plate is not impaired, and rattling does not occur for a long period of time. Therefore, maintenance work on the bridge is reduced.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. FIG. 1 is a sectional view showing a bridge joint according to an embodiment of the present invention, FIG. 2 is a plan view of a face plate thereof, and FIG. 3 is a plan view of the bridge joint. The base plate 11 of the joint is fixed to the base on the shore side and the bridge side, respectively, with bolts and nuts. A plurality of face plates 1 are stacked on the base plate 11 in a line. As shown in FIG. 2, the face plate 1 has a base portion 2 and comb teeth portions 3 extending in a comb shape from the base portion 2. As shown in FIG. , Form the same planar shape as the lower base plate 11. As shown in FIG. 1, a rubber plate 9 as an elastic member is sandwiched between the comb teeth 3 of the face plate 1 and the base plate 11. Therefore, the face plate 1 has a step on its lower surface, and the thickness of the comb teeth 3 is smaller than the thickness of the base 2 by the thickness of the rubber plate 9. The face plate 1 is fixed by bolt nuts 6 and 7 inserted through the bolt holes 4 and 5 with the rubber plate 9 interposed therebetween. The bolt holes 4 are provided in the base 2 of the face plate 1, and the bolt holes 5 are provided in the comb teeth 3 of the face plate 1. In addition, the face plate 1 is arranged so that the surface of the face plate 1 is flush with a road asphalt 10 provided on the ground or on a bridge.
And the thickness of asphalt, etc. are determined. Comb part 3
A rubber plate 12 is adhered to the lower surface of the base plate 11 at a connecting portion where the toys alternately mesh with each other, and an iron toy 13 is suspended from the base plate 11 further below. The base plate 11 is made of steel, and the face plate 1 is made of aluminum or an aluminum alloy.

In the thus constructed bridge joint, even if an automobile passes through the joint and the pair of comb teeth 3 vibrate, the comb teeth 3 are in contact with the lower base plate 11 and the rubber. Since they are in close contact via the plate 9, the comb teeth 3 of the face plate 1 and the base plate 1
The bolt nut 7 of the bolt hole 5 fixing the first comb tooth portion is prevented from being loosened. For this reason, this face plate 1 has been
Firmly, and no play is caused. Therefore, in the present invention, maintenance work such as retightening of the face plate 1 is reduced.

The face plate 1 is a cast product formed of aluminum or aluminum alloy.
For this reason, while being lightweight, the degree of wear by the road asphalt 10 and its tire is similar, and the face plate 1 and the road asphalt 1
A value of 0 keeps a flush state. The bolt holes 4 and 5 of the face plate 1 are formed such that the upper portions thereof are expanded, and the heads of the bolt nuts 6 and 7 are fitted into these portions. Is buried below the surface of the face plate 1.

[0011]

As described above, in the present invention, a face plate made of aluminum or an aluminum alloy and a base plate thereunder are provided with an elastic member such as a rubber plate interposed therebetween at the comb teeth portion. Since the bolts and nuts are used to fix the bolts and nuts, even if vibrations caused by traffic in the vehicle are applied to the comb teeth, the adhesion between the face plate and the base plate is strong, and the bolts and nuts are prevented from loosening due to the vibrations. For this reason, the maintenance interval can be lengthened in combination with the fact that the degree of wear of aluminum or aluminum alloy is similar to that of concrete, and the work is reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a bridge joint according to an embodiment of the present invention.

FIG. 2 is a plan view of the face plate.

FIG. 3 is a plan view of the bridge joint.

[Explanation of symbols]

 1: face plate 2: base 3: comb tooth 4, 5: bolt hole 6, 7: bolt nut 9: rubber plate 10: road asphalt 11: base plate

Claims (1)

[Claims] 1. A bridge joint for connecting a shore and a bridge with play at their relative positions with a comb-like base plate having a tip portion, a plurality of comb teeth of the base plate being juxtaposed on the base plate. A face plate made of aluminum or an aluminum alloy having a comb-like shape and a distal end portion having a comb shape, wherein the face plate has a comb portion having the comb teeth formed thereon and a base portion for connecting the comb teeth. A bridge joint, wherein an elastic member is interposed between the comb tooth portion and the pace plate.