主催: 日本学術会議
共催: 安全工学会, 地盤工学会, 土木学会, 日本機械学会, 日本建築学会, 日本航空宇宙学会, 日本材料学会, 日本船舶海洋工学会
会議名: 第10回構造物の安全性・信頼性に関する国内シンポジウム
回次: 10
開催地: 日本学術会議（東京都）
開催日: 2023/10/25 - 2023/10/27
Currently, the number of aging bridges is rapidly increasing in Japan, and there is a need to establish a more efficient and quantitative bridge inspection method. The authors focused on the impact vibration test using a portable FWD (falling weight deflectometer). The target bridge is a small bridge used in Kaminoyama City, Yamagata Prefecture, and deck slab replacement work was performed in 2019. We measured response acceleration before and after deck replacement, and further applied the MTS (Mahalanobis Taguchi System) method to determine local damage and deterioration of the deck slabs. In addition, we created a 3D FEM model and performed a dynamic analysis by degrading a portion of the deck. Also applied the MTS method to this data and compared with the experimental data to estimate localized areas of deterioration.
