Reusing a steel railway bridge whose main girder was deformed due to bridge fall

Abstract

 Steel girders of railway river bridges may fall due to heavy rain etc. If a steel girder falls, railway operations can be resumed quickly by reusing the steel girder. We introduced an example of reusing a steel girder whose main girder was deformed due to bridge fall. The safety performance of the steel girders was confirmed through analysis and measurements when trains passed. Furthermore, we revised reference manual (Steel girder reuse judgment standard [draft] ) for determining whether fallen steel girders can be reused.