第五部門：応用数理問題―計算機科学から社会科学まで

[24001-06-03] FE modelling of global bridges and intermediate hinge sections in cantilever-suspended steel girder bridge (Proceedings of Symposium on Applied Mechanics)

Aoi Hiraoka¹, *Gen Hayashi¹, Takashi Yamaguchi¹ (1. Osaka Metropolitan University)

Keywords:cantilever-suspended steel girder bridge, FE modelling, vibration characteristics, static response

In this study, modelling methods for the entire bridge and intermediate hinge sections were investigated for the cantilever-suspended steel plate girder bridge. As a result, a method was proposed that can reproduce not only the natural frequencies and vertical displacements but also the centre of rotation and stress state, even if the hinge bearings are modelled in a simplified manner. It was also found that the use of beam elements in the overall bridge affects the higher-order vibration modes.