JPH0814089B2 - Bridge pipe repair pipe - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a repair pipe for a bridge-mounted pipe for repairing a defective portion of the bridge-mounted pipe that is bridged to bridge a telecommunications cable.

(Prior Art) Conventionally, for example, as a repair pipe for this kind of bridge bridge pipe,
As described in Japanese Patent Application No. 63-156076, in a repair pipe for a bridge-mounted bridge made of one piece or half, one end has an outside diameter inscribed in the inside diameter of the existing pipe on the abutment side, and the other end is There is a repair pipe for bridge bridge pipe that has the same outer diameter as the outer diameter and has a flange for connection to the abutment.

Fig. 7 shows a cross section of this bridge-mounted bridge after repair using the repair pipe.

That is, the repair pipe 3 of the bridge overhanging pipe is replaced with the existing pipe 2 on the abutment 1 side.
Insert the abutment part connecting flange 5 into the inside until it comes into close contact with the abutment part, and fix the abutment part connecting flange 5 to the abutment part using anchor bolts or adhesives, then install the existing pipe 2
The repair is performed by connecting the pipe joint 4 to the.

(Problems to be Solved by the Invention) The repair pipe 3 of the conventional bridge-mounted pipe shown in FIG. 7 is inserted so as to be inscribed in the existing pipe 2 on the abutment 1 side. Insulation is required to prevent it from being highly expensive because it requires high-precision machining in consideration of dimensional tolerances, and it may be corroded by the contact between the repair pipe 3 and the existing pipe 2 depending on the material. Need to have layers,
Adjusting the angle of the flange 5 may interfere with the securing of the inner diameter, which is the original function of the bridge-mounted pipe, and if the existing pipe 2 is not at right angles to the surface of the abutment 1 as shown in FIG. Although it is necessary, this work is performed at the manufacturing stage because it is extremely difficult to process it at the actual work site, and as a result there is the drawback that individual design increases and mass production is not possible and it is expensive. .

The object of the present invention is to solve the above-mentioned drawbacks, for example, without impairing the function originally possessed by the bridge-suspended tube such as securing the inner diameter,
Moreover, it is to provide a relatively low-cost repair pipe for bridge-mounted bridge pipes that does not require high precision and individual design.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is a repair pipe for a bridge-mounted bridge made of one piece or half, and one end of which has the same outer diameter as the outside diameter of the bridge-mounted bridge. And the other end has an attachment portion for connecting to the abutment portion.

(Operation) With the above configuration, the present invention cuts a bridge-mounted bridge in a certain section from the abutment part when the bridge-mounted bridge in the abutment part is deteriorated or its function is remarkably reduced due to other factors. , A repair pipe having an outer diameter on the side of the existing pipe that is the same as the outer diameter of the bridge-mounted pipe, and having a mounting portion for connecting to the abutment at the other end was fixed to the abutment using anchor bolts. After that, by connecting with the existing pipe using the joint currently used for connecting the pipe, the functions that the bridge-mounted pipe should have, such as securing the inner diameter, are not impaired, and high precision and individual design are not required. Its main feature is that it has made it possible to provide repair pipes for bridge-mounted bridges at relatively low prices.

(Examples) Examples of the present invention will be described below with reference to the drawings. Needless to say, the embodiment is merely an example, and various modifications and improvements can be made without departing from the spirit of the present invention.

(Embodiment 1) FIG. 1 is a perspective view of a repair pipe for explaining a first embodiment of the present invention, F indicates the pipe axial direction of the repair pipe corresponding to the existing pipe side, and R indicates , Indicates the pipe axis direction of the repair pipe corresponding to the abutment side, and S indicates the direction perpendicular to the pipe axis of the repair pipe.

6 is an existing pipe side of the repair pipe, which has an outer diameter of the same diameter as that of the bridge-mounted pipe, and 7 is an attachment part for connecting to the abutment part, which is connected to the existing pipe side pipe. Connection housing, 8
Are holes for anchor bolts formed in the connection housing 7.

FIG. 2 (a) is a front view seen from the F direction.
FIG. 2B is a so-called rear view seen from the R direction, and FIG. 2C is a so-called side view seen from the S direction.
FIG. 3 is a cross-sectional view after repair. Reference numeral 13 in FIG. 3 is an anchor bolt which is planted by drilling a hole in the concrete of the abutment 1 in order to fix the connection casing 7 of the repair pipe to the abutment 1.
In this way, the anchor bolt 13 is inserted into the hole 8 of the connection housing 7.
Is inserted and fixed, and the existing pipe side pipe 6 of the repair pipe and the existing pipe 2 are joined together by the butted pipe joint 4. Thus, the connection housing 7 is connected so as to cover the existing pipe 2 on the abutment 1 side.
It should be noted that the connection housing 7 is not limited to the rectangular parallelepiped as shown in the figure, and it is obvious that other shapes may be used.

With such a configuration, it is not necessary to insert the repair pipe of the bridge-mounted bridge pipe so as to be inscribed in the existing pipe 2 on the abutment 1 side. Therefore, it is possible to achieve a high precision in consideration of the dimensional tolerance at the time of manufacturing the existing pipe 2. It is possible to repair without requiring machining and without hindering the securing of the inner diameter, which is the original function of the bridge-mounted pipe.

Moreover, as shown in FIG. 4, when the existing pipe 2 is not at right angles to the surface of the abutment 1, the connection housing 7 for connecting to the abutment 1 can be easily processed at the work site, so there is no individual design. Mass production is possible.

As is clear from this result, there is an advantage that the repair can be performed at a relatively low price as compared with the conventional technique and without impairing the original function of the bridge-mounted bridge.

(Embodiment 2) FIG. 5 is a view for explaining a second embodiment of the present invention, in which the repair pipe of the first embodiment has a half-split structure, and 9 is an existing repair pipe 2. The first half-divided pipe on the pipe side and having the same outer diameter as that of the bridge-mounted pipe is on the left side, and 10 is the second half-divided pipe on the right side. Reference numeral 11 is a first half connection housing of a mounting portion for connecting to the abutment 1, which is on the left side, and 12 is also a second connection housing, which is the right side. 8 is a hole for anchor bolts, and 15 is a flange for tightening.

With such a structure, for example, even when cables such as a telecommunication cable are already accommodated in the existing pipe 2 of the bridge-mounted pipe, the same repair effect as that of the first embodiment can be obtained. It has the advantage of

(Embodiment 3) FIG. 6 is a view for explaining a third embodiment of the present invention, which is a connection housing for connecting the repair pipe 6 of the first embodiment to the existing pipe side and the abutment 1. It has a structure in which 7 are connected by a hinge 14.

Because of this structure, the existing pipe 2 is the abutment 1
Even if it is not at right angles to the surface of No. 1, it has the advantage that it does not require processing at the work site as in the first embodiment, and that the same or higher effects as those of the first embodiment can be obtained. There is.

(Effects of the Invention) As described above, the present invention relates to a bridge-mounted bridge tube that is integrally or half-divided when the bridge-mounted bridge tube in the abutment part is deteriorated or its function is significantly reduced due to other factors. A repair pipe for a bridge-mounted pipe, one end of which has the same outer diameter as that of the bridge-mounted pipe, and the other end of which has a mounting portion for connection to the abutment By repairing, for example, maintaining the function that the bridge-installed pipe should originally have, such as securing the inner diameter, while maintaining high precision and eliminating the need for individual design, a relatively inexpensive bridge-installed pipe repair pipe can be provided. There are advantages that can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining the first embodiment that best expresses the features of the present invention, and FIG. 2 (a) is a front view of a repair pipe of a bridge-mounted bridge of the present invention, FIG. (B) is a rear view of the repair pipe of the bridge-mounted bridge of the present invention, FIG. 2 (c) is a side view of the repair pipe of the bridge-mounted pipe of the present invention, and FIGS. 3 and 4 are the first embodiment. 5 is a perspective view for explaining a second embodiment of the present invention, FIG. 6 is a perspective view for explaining a third embodiment, FIG. 7 and FIG. FIG. 6 is a diagram for explaining a repair pipe of a conventional bridge-mounted bridge pipe. 1 …… Abutment 2 …… Existing pipe 3 …… Conventional repair pipe 4 …… Pipe joint 5 …… Flange 6 …… Existing pipe side repair pipe 7 …… Connecting housing 8 …… Anchor bolt hole 9 …… Left side of the first half-split pipe on the existing pipe side 10 …… Right side of the second half-split pipe on the existing pipe side 11 …… First half-split flange of the abutment mounting part 12 …… Second of the abutment mounting part Half flange 13 …… Anchor bolt 14 …… Hinge 15 …… Flange

Claims (1)

[Claims] 1. A repair pipe for a bridge-mounted bridge, which is integrally or half-divided, wherein one end has the same outer diameter as the outside diameter of the bridge-mounted pipe and the other end is for connection to an abutment part. A repair pipe for a bridge-mounted bridge, characterized in that it has a mounting part.