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June 21, 2026Japanese Journal of JSCE

Strategic Maintenance for Fatigue Cracks in End Diaphragms of Steel Railway Trough Girder Bridges

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Authors

MSMiki SHIBATATHTakeshi HanjiKTKazuo Tateishi

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Overview

Randomized trial investigates fatigue cracks in bridge components, suggesting practical maintenance strategies.

Key Points

  • This research aims to elucidate the relationship between bridge component condition and fatigue crack behavior in steel railway bridges.
  • Conducted fatigue tests and finite element analysis based on real bridge measurements
  • Explored the efficacy of stop hole repairs as a maintenance measure
  • Proposed a new management flow for addressing cracks in end diaphragms
  • Demonstrated a significant extension of the lifespan of components through stop hole repairs
  • Identified critical factors influencing crack propagation under varying loading conditions
  • Proposed improvements in maintenance strategies based on analytical findings

Cite This Study

SHIBATA et al. (2026) studied this question.

synapsesocial.com/papers/6a37805e24f042ddf4c5a730https://doi.org/10.2208/jscejj.25-00302
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