Real-time hybrid experimental-numerical simulation of bridge infrastructure subject to cascading earthquake-tsunami hazards
| 项目名称： | Real-time hybrid experimental-numerical simulation of bridge infrastructure subject to cascading earthquake-tsunami hazards |
| 摘要： | Bridge strength can be significantly compromised when the bridge is subjected to cascading earthquake-tsunami scenarios. However, little data exists to support the simulation of bridges to both earthquake and tsunami loading. Test data under individual earthquake and tsunami hazards is available, but space is limited in wave facilities, necessitating small-scale structural models. Scaling laws then make it difficult to incorporate structural damage from previous seismic loading into hydrodynamic experiments. Although numerical models can be analyzed using full-scale bridge properties, few software can apply both seismic and tsunami loading (with structural damage) in a single analysis. Particle Finite-Element Method (PFEM)] can simulate the response of flexible, inelastic structures to earthquake and tsunami events, including fluid-structure interaction (FSI) effects between the waves and structure. However, these FSI approaches are subject to significant modeling uncertainties and need test data to validate their results. Real-time hybrid simulation (RTHS) – a testing technique that combines physical experiments and numerical models – can alleviate the aforementioned constraints and provide data to validate computational FSI models. This project will develop an RTHS approach to study the vulnerability of bridges subjected to subsequent earthquake-tsunami loading. |
| 状态： | Active |
| 资金： | 80000 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 项目负责人： | Simpson, Barbara |
| 执行机构： | Oregon State University, Corvallis |
| 开始时间： | 20200816 |
| 预计完成日期： | 20220815 |
| 主题领域： | Bridges and other structures；Highways；Planning and Forecasting；Security and Emergencies |
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