Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The impact of tsunami wave force on elevated coastal structures
Abstract We examined a potential strategy for mitigating injury and death during tsunamis by conducting numerical simulations for a vertical-evacuation structure with a breakaway ground floor. The simulation produced the uplifting load on the bottom slab, the frontal impact force and the overturning moment, depending on the structure's size and bottom-slab elevation, and the wave's Froude number. With a proper normalization, the force and moment coefficients were generalized to become not explicitly dependent on the height of the bottom slab. The exposure of the bottom slab to wave impact has increased the probability of the structure to overturn. Based on our findings, we propose a maximum moment coefficient of 0.84 to decide on the overturning stability of the structure.
Highlights We simulated the impact of tsunami wave on a coastal structure elevated above ground using a well-calibrated open-source solver. The simulation determined the dependencies of the impact on the size and elevation of the structure. It also found the dependencies on the wave's Froude number. We generalized the wave force and moment coefficients using the relative wave height as the length scale for normalization. A generalized moment coefficient of 0.84 is proposed to decide on the overturning stability of thestructure.
The impact of tsunami wave force on elevated coastal structures
Abstract We examined a potential strategy for mitigating injury and death during tsunamis by conducting numerical simulations for a vertical-evacuation structure with a breakaway ground floor. The simulation produced the uplifting load on the bottom slab, the frontal impact force and the overturning moment, depending on the structure's size and bottom-slab elevation, and the wave's Froude number. With a proper normalization, the force and moment coefficients were generalized to become not explicitly dependent on the height of the bottom slab. The exposure of the bottom slab to wave impact has increased the probability of the structure to overturn. Based on our findings, we propose a maximum moment coefficient of 0.84 to decide on the overturning stability of the structure.
Highlights We simulated the impact of tsunami wave on a coastal structure elevated above ground using a well-calibrated open-source solver. The simulation determined the dependencies of the impact on the size and elevation of the structure. It also found the dependencies on the wave's Froude number. We generalized the wave force and moment coefficients using the relative wave height as the length scale for normalization. A generalized moment coefficient of 0.84 is proposed to decide on the overturning stability of thestructure.
The impact of tsunami wave force on elevated coastal structures
Xie, Peiwei (Autor:in) / Chu, Vincent H. (Autor:in)
Coastal Engineering ; 162
30.08.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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