Multiple-hazard fragility assessment of bridges subjected to successive earthquake and flood events

Key Points

• Bridges suffer significant structural integrity loss under successive earthquake and flood events, and these hazards can compound damage over time.
• The study measures fragility assessment under multiple hazards to quantify how bridge stability is affected during successive natural disasters.
• Data from various models highlighted the vulnerabilities of bridges in response to simultaneous earthquake and flood events, stressing the importance of updated engineering standards.
• Findings suggest that current design practices may not adequately ensure the safety of bridges during overlapping disaster scenarios; further investigations are essential.