Seismic reliability analysis of a r.c. arch bridge

• DOI: 10.1016/j.prostr.2023.01.087
• Publication Date: 2023-02-09T16:27:50Z
• Authors: Mariano Angelo Za...; Klajdi Toska; Flora Faleschini; Lorenzo Hofer; Gianantonio Feltrin; Carlo Pellegrino
• Keywords: 02 engineering and technology; cost-benefit analysis; earthquake; engineering; insurance; Italy; risk mitigation; Seismic risk map; 0201 civil engineering

Seismic reliability analysis (SRA) is a powerful tool able to combine seismic hazard and structural fragility for computing the probability of failure of a specific damage state of interest. In this work, a SRA has been applied to a specific case study of an open spandrel RC arch bridge located in North-eastern Italy, adopting as suitable engineering demand parameters for both the ductile and fragile failure mechanism of the columns between the RC arches and the RC beams grillage. Collapse seismic fragilities are computed for each structural element and, finally, the bridge seismic reliability is computed in a system reliability-based format.