抄録
This paper presents both experimental and analytical approaches for the dynamic response of steel circular fixed arch under impact for the purpose of developing the impact resistant design of the steel arched Sabo dam. First of all, the static and impact experiments have been performed in order to measure the relationship between load and deformation, and the absorbed energy has been obtained by integrating the area of the load-deformation curve. Secondly, the impact response analysis has been performed by modelling the impact phenomenon into the two-degrees of freedom system accounting for the local deformation. As the results, it is confirmed that the load-deformation relation and the absorbed energy calculated by the impact response analysis are relatively in good agreements with the ones measured by the impact experiment. Therefore, it is found that these results will provide the useful data for the energy design from the viewpoint of the impact resistant design.
