Research and Development Trends regarding Countermeasures to Prevent 'Earthquake-related Events'

摘要

It is well known that the most important countermeasure to earthquakes is to prevent shaking caused by strong ground motion. Consequently, the Center for Railway Earthquake Engineering Research is involved in extensive research and development, encompassing early earthquake warning, seismic reinforcement and earthquake data provision. Recently however, damage caused by fault induced surface deformation, tsunamis and multiple earthquakes, including aftershocks, has been reported. These phenomena are said to be "earthquake-related events." Since the characteristics of many "earthquake-related events" are still unknown, no seismic design methods have been established yet in response to them, while it is necessary to minimize damage through seismic structural planning. This paper therefore describes the work that has been done and achievements made, to minimize seismic damage due to earthquake-related events.