Seismic performance of key-connection UHPC precast segmental hollow bridge columns: Experiment and finite element analysis

Key Points

• Seismic performance is enhanced for UHPC precast segmental hollow bridge columns, indicating strong structural integrity.
• Key connections in the columns showed a significant improvement in deformation capacity under seismic loads during tests.
• Using finite element analysis, predictions for structural behavior were validated against experimental data, affirming analytical accuracy.
• The findings support the use of UHPC in bridge design, suggesting potential benefits for urban infrastructure resilience.