| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforcing construction method for a purline-cross beam connection part in an under road girder type steel railway bridge, capable of reducing remarkably an out-of-plane deformation and a stress of an upper flange of the purline causing a fatigue crack, in order to prevent the fatigue crack from being generated in the purline-cross beam connection part of the steel railway bridge, and a device therefor. SOLUTION: Bolt installing holes are drilled respectively in the upper flange 2A of the purline 2 of the purline-cross beam connection part 4 in the under road girder type steel railway bridge, a web 3A of the cross beam 3, and a connection stiffening material 5, and a reinforcement member having respectively corresponding joining faces in the upper flange 2A of the purline 2, the web 3A of the cross beam 3, and the connection stiffening material 5 are attached by bolts 7A, 7B, 7C fastened to the bolt installing holes, in the reinforcing construction method for the purline-cross beam connection part in the under road girder type steel railway bridge. COPYRIGHT: (C)2011,JPO&INPIT
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