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[S02A-04] Reproduction Analysis of Dynamic Response Increase due to Crack Growth due to Simultaneous Double Track Train passage of Railway PRC Girder
Keywords:PRC member, rigidity, repeated load
The purpose of this paper is to reproduce of dynamic response increase due to crack growth due to simultaneous double track train passage of railway PRC girder. A dynamic analysis using nonlinear equivalent reduction model that takes into account the historical characteristics after the concrete crack occurrence revealed that the concrete member rigidity gradually decreases, and a resonance phenomenon occurs by repeatedly experiencing double-track loading of train passage.