Improving the Database of the Restoration Period after Earthquakes for Railway Structures Based on Past Earthquakes

Abstract

In order to assist in the performance evaluation of railway structures on earthquake recovery, the authors calculated the restoration period according to the type of structure and damage level, and created a database of the results. In this paper, period required for each work used in the restoration of railway structures was verified based on the restoration period after the 2022 Fukushima Earthquake, in which detailed conditions and processes for restoration have been organized. As a result, we found intermediate damage conditions between large-scale damage and small-scale damage that we did not calculate, so the restoration period in such situation is calculated in the improved database. By using it, it is possible to evaluate earthquake recovery in a more realistic manner.