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Abstract
This paper aims to predict the dynamic response of a reinforced concrete building positioned behind a seawall subject to tsunami action using SPH and FEM. Firstly, the SPH model was validated for wave overtopping by simulating an existing physical model experiment and comparing the predicted hydraulic
quantities with the laboratory measurements. Secondly, a land-based structure in the experiment, representing an exterior wall of a nuclear reactor building, was modelled by the FEM adopting the pressure time histories derived from the SPH model to carry out nonlinear time history response analysis. A series
of numerical studies demonstrates that (1) it is crucial to account for the uncertainty of tsunamis to estimate the response of structures, (2) if a seawall is installed but not high enough, it does not contribute to the mitigation of wave force, and (3) the one-way coupled analysis with SPH and FEM is a useful technique to improve tsunami resistant design.
quantities with the laboratory measurements. Secondly, a land-based structure in the experiment, representing an exterior wall of a nuclear reactor building, was modelled by the FEM adopting the pressure time histories derived from the SPH model to carry out nonlinear time history response analysis. A series
of numerical studies demonstrates that (1) it is crucial to account for the uncertainty of tsunamis to estimate the response of structures, (2) if a seawall is installed but not high enough, it does not contribute to the mitigation of wave force, and (3) the one-way coupled analysis with SPH and FEM is a useful technique to improve tsunami resistant design.
| Original language | Japanese |
|---|---|
| Pages (from-to) | 1-24 |
| Journal | Journal of Japan Society of Civil Engineers |
| Publication status | Accepted/In press - 3 Mar 2025 |
Keywords
- DualSPHysics
- Finite element method (FEM)
- Fluid-structure interaction
- Reinforced concrete
- Smoothed Particle Hydrodynamics (SPH)
- Tsunami
Research Beacons, Institutes and Platforms
- Global inequalities
Embargoed Document
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Multiphysics Coupling Using SPH for Coastal Structures Subject to Tsunami-Driven Hydrodynamic and Debris Impact Loads
Ishiki, K., Cunningham, L. & Rogers, B. D., 1 Jan 2025, In: Journal of Waterway, Port, Coastal, and Ocean Engineering. 151, 1, p. 1-18Research output: Contribution to journal › Article › peer-review
Open AccessFile28 Downloads (Pure) -
Existing design approaches to nuclear power plants subject to tsunamis: A critical review
Ishiki, K., Cunningham, L. & Rogers, B. D., 1 Nov 2023, In: Structures. 57, 16 p., 105109.Research output: Contribution to journal › Article › peer-review
Open Access -
Investigation of Tsunami Mitigation using Discrete Onshore Protection Structures
Pringgana, G., Rogers, B. D. & Cunningham, L., 3 Jul 2023. 1 p.Research output: Contribution to conference › Poster › peer-review
Open Access