Опубликована: Янв. 1, 2024

In coastal areas, earthquakes are very likely to cause deformation of the seafloor crust, which in turn triggers large-scale water displacement and forms tsunamis. Structural damage caused by an earthquake may diminish resistance steel cylindrical tanks tsunami impact, resulting more pronounced failure behavior. this study, a sequential loading experimental program corresponding Coupled Eulerian Lagrangian-based numerical model developed investigate mechanism subjected earthquake-tsunami sequence. To be specific, characteristics tank models under isolated examined through experiments with different solitary wave heights velocities. The amplification effect seismic pre-damage on subsequent impact is compared subjecting earthquake-damaged loading. Results indicate that seismic-damaged exhibit significant behavior due factors such as geometric deformation, residual stress, breaking. Specifically, protruding edges induce concentrated leading higher maximum stresses changes walls. Compared considering individual hazard only, peak exhibits fluctuations ranging from 17.1%-94.5%, while stress varied between 4.5%-158.3%. This work lays groundwork for overcoming limitations traditional single-hazard fragility analyses.

Язык: Английский