Research on the seismic fragility of metro stations considering central column structure types

Key Points

• Metro stations exhibited varying levels of seismic fragility based on central column structure types, showing significant differences in performance.
• The analysis determined that certain structural designs offer better resistance against seismic forces during earthquakes.
• Assessment using detailed structural analysis models evaluated multiple central column types across various metro station designs.
• This work highlights the need for improved seismic design standards to ensure metro station safety during earthquakes.