Proposal of Evaluation Method for Anti-catastrophe Resistance for Railway Structures

Abstract

An active debate began in the wake of the 2011 off the Pacific coast of Tohoku Earthquake about how to deal with the "unanticipated large earthquakes" in terms of seismic design of civil structures. The concept of "anti-catastrophe resistance" was first introduced in the seismic design standards for railway facilities when they were revised in 2012. No method to evaluate the degree of Anti-catastrophe resistance was proposed at the time however, corresponding to the structure planning stage. Therefore, study was undertaken to develop a method to evaluate "Anti-catastrophe resistance."