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Risk-informed reliability-cost optimization of bridge-mounted overhead catenary systems for high-speed railways using a PCA-enhanced surrogate model
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DOI：10.1016/j.strusafe.2026.102724.png)
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Abstract
En 中文
• Principal-component features improve surrogate prediction of residual displacement • Tail correction improves estimation of low seismic failure probabilities. • Reliability and cost are optimized jointly for mast strengthening design. • Design envelopes support seismic decisions for bridge-mounted catenary systems.
Keywords:
Principal-component analysis
Surrogate modeling
Seismic reliability
Cost optimization
Bridge-mounted catenary systems
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