Modelling the sequential earthquake–tsunami response of coastal road embankment infrastructure

Abstract. Transport networks in coastal, urban areas are extremely vulnerable to seismic events, with damage likely due both ground motions and tsunami loading. Most existing models analyse the performance of structures under either earthquakes or tsunamis, as isolated events. This paper presents a numerical approach that captures sequential earthquake–tsunami effects on transport infrastructure coastal area, taking into consideration combined strains two Firstly, dynamic cyclic loading is modelled, applied soil-structure system using finite-difference approximation determine differential settlement, lateral displacement liquefaction potential foundation. Next, finite-volume method approach, wave propagation flooding modelled. Finally, hydrostatic hydrodynamic loads corresponding elevation post-earthquake state structure obtain second deformation. The model an embankment Manzanillo, Mexico, which part main road; response analysed motion records 1995 Manzanillo event.