JPH0261565B2 - - Google Patents

Description

Detailed Description of the Invention The present invention provides a steel track girder for a straddle type monorail, in which a groove is formed along the intersection corner of the top surface and side surface of the girder, and an adhesive is applied to the inner surface of the groove. Then, a non-magnetic structure supporting piping in the direction of the intersection of both surfaces is inserted into the groove at the corner where the top surface and the side surface intersect, and the structure is placed inside the groove with the adhesive. A piping construction method for an automatic train control device characterized by curing the adhesive while holding the structure by supporting force and aligning the top and side surfaces of the structure with the top and side surfaces of the track girder. It is related to.

When fixing automatic train control system (ATC) piping to the steel track girder of a straddle-type monorail, place the hard vinyl chloride piping for ATC in the groove provided in the upper corner of the girder, and fix the pipe body holding member to the steel girder. This method was welded to a wooden girder and poured resin mortar into the remaining space of the groove, but this method had the following drawbacks.

That is, as a result of arranging the tubes at the corners, it has been necessary to use formwork to improve finishing accuracy when pouring resin mortar. In addition, because formwork is used, it is not possible to check the degree of mortar filling, resulting in variations in the finished product.The inability to follow the deflection of the track caused by differences in the weight and thermal expansion coefficient of the monorail results in cracks in the mortar and damage to the track and girder. There were gaps between them.
Furthermore, once poured, it is completely adhesively fixed to the girder, which has the disadvantage of having to be removed and replaced in the event of damage or other accidents or repairs.

The purpose of the present invention is to solve these problems by manufacturing a structure including a pipe body for an automatic train control device in a factory and inserting it on site so that it can follow the expansion, contraction, and deflection of steel track girders. That is.

In order to solve this technical problem, the present invention removes the stud dowels in the grooves at the corners of the steel track girders, making it easier to insert the structure including the pipe for automatic train control equipment, and attaching the girder to the structure. This prevents the structure from peeling off. Furthermore, the structure itself is produced under quality control in a factory, which has the advantage of less variation in quality, higher finishing accuracy, and lower cost.

To explain the embodiment of the present invention shown in the drawings, a solid line in FIG. A groove 4 is formed as shown in FIG. On the other hand, in a factory, a non-magnetic structure 5 is manufactured using resin mortar or the like. This structure 5 has both surfaces 6 and 7 at the intersection corner between its top surface 6 and one side surface 7.
The hard vinyl chloride pipe 8 for the ATC is buried in the direction of the intersecting line. Inside this structure 5, reinforcing bars 9 shown in FIG. 2 may be buried, or a recess 11 for the stud dowel 10 may be formed. It is fine as long as it has the strength.
In the present invention, the girder 1 is subjected to anti-corrosion treatment in the groove 4, and is treated with a primer that has good adhesion to the structure 5, and furthermore, the girder 1 and the structure are treated along the inner surface of the groove 4. A putty-like adhesive 12 is applied to fill the gap with 5 (see FIG. 1).
In this state, the structure 5 is inserted into the groove 4 and held in the groove 4 by the supporting force of the putty adhesive 12. Then, using a shaped installation aid 13 or the like, the structure 5 is pushed in and its top surface 6 and side surface 7 are aligned with the top surface 2 and side surface 3 of the track girder 1. At this time, the adhesive 12 is plastically deformed and maintained in an aligned state, and due to changes over time, the adhesive 12 remains in that state.
is cured, and the structure 5 is fixed to the track girder 1.
The above-mentioned aligned state does not necessarily mean that the upper surfaces 2, 6 and the side surfaces 3, 7 are on the same plane, but may be arranged in an orderly manner. In this fixed state, the elastic sealing 14
and finish the work.

Since the present invention is based on the above-mentioned construction method, it is possible to quickly and reliably construct the piping 8 for the automatic train control device at the intersection corner of the upper surface 2 and both side surfaces 3, 3 of the steel track girder 1 of the straddle type monorail. It is suitable for mass production and can not only improve construction efficiency but also eliminate the above-mentioned defects and exhibit the above-mentioned advantages.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing a concave groove portion of a method of constructing piping for an automatic train control device in a steel track girder for a straddle type monorail according to the present invention, and FIG. 2 is a longitudinal cross-sectional view of the groove after construction. 1... Steel track girder for straddle type monorail, 2, 6... Top surface, 3, 7... Side surface, 4... Concave groove, 12... Adhesive, 8
...Piping, 5...Nonmagnetic structure.

Claims (1)

[Claims] 1. In the steel track girder 1 for a straddle type monorail, a groove 4 is formed along the intersection corner of the top surface 2 and side surface 3 of the girder 1, and an adhesive 12 is applied to the inner surface of the groove 4. Thereafter, a non-magnetic structure 5 supporting a pipe 8 in the direction of the intersection of both surfaces 6 and 7 is inserted into the groove 4 at the corner of the intersection between the top surface 6 and the side surface 7, and the structure 5 is inserted into the groove. 4 by the supporting force of the adhesive 12, and in a state where the upper surface 6 and side surface 7 of the structure 5 are aligned with the upper surface 2 and side surface 3 of the track girder 1, the adhesive 12 A piping construction method for automatic train control equipment characterized by hardening.