Nonlinear seismic fragility analysis of a resilient precast post-tensioned segmental bridge pier

The use of precast post-tensioned segmental (PPS) piers is growing in the bridge industry, particularly Accelerated Bridge Construction (ABC). To increase their high-seismicity regions, this study focuses on seismic performance PPS under pulse-like near-field earthquakes. Two ensembles 40 ground motions and 44 far-field along with three various heights are used a series incremental dynamic analyses. analysed original motions, extracted pulse corresponding non-pulse motions. It found that effect motion pronounced, when period proximity to natural pier. also seen generally have similar effects response piers.