Assessment of the Seismic Vulnerability of Bridge Abutments with 3D Numerical Simulations

The role of abutments on the seismic vulnerability bridges has been relatively little studied in geotechnical literature. To cover this gap, 3D numerical simulations were herein performed, by studying performance three single-span bridge configurations. models used OpenSees to account effects due soil structure interaction between deck and abutments. In particular, advanced materials implemented model non-linear hysteresis plasticity that are responsible for deformations and, thus, structural damage. A probabilistic-based approach was considered analytical fragility curves developed modeling uncertainties. deformability investigated considering several limit states based calculation longitudinal displacements deck.