Verification on Collapse Process of Aso Bridge during the 2016 Kumamoto Earthquakes by ASI-Gauss Method


The 2016 Kumamoto Earthquakes caused serious damages not only for private houses but also for infrastructures in Kumamoto prefecture. For example, a huge landslide happened after the earthquake and Aso Bridge, which was constructed in the same location of the landslide, totally collapsed. It is difficult to get consensus on the main reason of Aso Bridges collapse, because there is no observation date. On the other hands, it is important in earthquakeresistant designing of bridges to investigate critical factors and failure process. In this paper, a numerical analysis of the Aso Bridge failure is conducted by ASIGauss method, which is a branch of finite element method, in order to investigate the collapse process.