第25回応用力学シンポジウム

Presentation information

Regular Session

General Session (5.応用数理問題―計算機科学から社会科学まで)

第5部門③

Sat. May 28, 2022 3:30 PM - 4:45 PM Meeting room E (Online)

座長:古川 愛子(京都大学)

4:15 PM - 4:30 PM

[2E11-15-04] Fundamental Study on Identification of Fatigue Damage Mechanisms in Web Gap Plate Using Image Sensing

*Chanoknunt Sangsobhon1, Hidehiko Sekiya1, Masayuki Tai1, Shogo Morichika1, Mizuki Hayama2, Masanobu Nagai3 (1. Tokyo City University, 2. Shutoko Technology Center, 3. Metropolitan Expressway Co.,Ltd)

Keywords:Displacement-induced fatigue, Bridge deformation, Image sensing

Most of the fatigue damage in steel bridges is displacement-induced fatigue at the member intersection. To apply
appropriate countermeasure against displacement-induced fatigue, it is important to identify the deformation of
bridge members under live load that causes high strain. This study presents a deformation measurement method
using computer vision-based image sensing technology. The field measurement was performed at actual steel
girders bridge in-service using a 4K video camera. The displacement responses were determined from the recorded
video data.