This study presents the dynamic characterization of a 363-meter curved viaduct with seismic isolation, located in a moderate seismic hazard zone near Bogotá, Colombia. The segmental structure comprises a post-tensioned hollow-core box girder on deep-founded concrete piers, with low-damping elastomeric isolators. The program included ambient vibration measurements, geophysical soil characterization, and site-specific ground motion development. Linear time-history and nonlinear static analyses were performed using calibrated finite element models. Results show good agreement between simplified models and measured responses. Despite low energy dissipation, the isolation system effectively limits substructure damage under expected seismic demands.
