第五部門：応用数理問題―計算機科学から社会科学まで

[24007-12-03] Development of the bridge deflection-track irregularity transformation program for the deflection estimation method based on track irregularities (Proceedings of Symposium on Applied Mechanics)

*Koji Hattori¹, Kodai Matsuoka¹, Tanaka Hirofumi¹ (1. Railway Technical Research Institute)

Keywords:structual health monitoring, track irregularity, track inspection vehicle, drive-by inspection, Railway

This study develops a railway bridge deflection-track irregularity transformation program for the deflection estimation method based on onboard-measured track irregularities. The program can investigate the effect of the adjacent bridge deflections on the track irregularities of the target bridge. A numerical calculation for 7 consecutive bridges of 13 m beams clarifies that the waveform of track irregularity becomes steady from the third to the sixth bridge in the running direction.