TSUNAMI ANALYSIS TOOLS

This page contains links to our latest tsunami structural analysis tools. Contact us directly for more information. 

OpenTSEA - Open Tsunami Structural Engineering Analysis tools

[The OpenTSEA-toolkit is still under development but is fully functional]

The OpenTSEA-toolkit provides a framework and functional tool for the fragility assessment of structures against user-specified tsunami loading scenarios. The OpenTSEA-toolkit brings together the computation of structure and tsunami dependent forces and facilitates tsunami structural response analysis. The toolkit employs a systematic approach for modelling and assessing structures' tsunami response under a multitude of scenarios using the Variable Depth Push Over (VDPO) analysis method. Incorporating the advancements in VDPO analysis of Petrone et al. (2017), Baiguera et al. (2022), Del Zoppo et al. (2021; 2023) and more, the toolkit enables users to accurately simulate the structural arrangement and building envelope all the while considering different permeability phases — enabling flow through the building at distinct stages. Lateral hydrodynamic tsunami forces can be calculated using either the ASCE 7/22 or the Foster et al. (2017) formulations. 

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Access the toolkit in GitHUB:  GitHub - jonascels/OpenTSEA: Open Tsunami Structural Engineering Analysis 

If you use the OpenTSEA toolkit in your research, please cite: Jonas Cels, 2025. OpenTSEA. 10.5281/zenodo.16575048 

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This application uses OpenSees: McKenna, F. (1997) Object oriented finite element analysis: Frameworks for analysis algorithms and parallel computing. Ph.D. dissertation, University of California, Berkeley.

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*OpenTSEA is currently configured for reinforced concrete structures.

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References:

   Baiguera, M., Rossetto, T., Robertson, I.N. and Petrone, C., 2022. A procedure for performing nonlinear pushover analysis for tsunami loading to ASCE 7. Journal of Structural Engineering, 148(2), p.04021270. DOI: https://doi.org/10.1002/eqe.3167

   Del Zoppo, M., Wijesundara, K., Rossetto, T., Dias, P., Baiguera, M., Di Ludovico, M., Thamboo, J. and Prota, A., 2021. Influence of exterior infill walls on the performance of RC frames under tsunami loads: Case study of school buildings in Sri Lanka. Engineering Structures, 234, p.111920. DOI: https://doi.org/10.1016/j.engstruct.2021.111920 

   Del Zoppo, M., Rossetto, T., Di Ludovico, M. and Prota, A., 2023. Effect of buoyancy loads on the tsunami fragility of existing reinforced concrete frames including consideration of blow-out slabs. Scientific reports, 13(1), p.9015.. DOI: https://doi.org/10.1016/j.engstruct.2021.111920

   Foster, A.S.J., Rossetto, T. and Allsop, W., 2017. An experimentally validated approach for evaluating tsunami inundation forces on rectangular buildings. Coastal Engineering, 128, pp.44-57. DOI: https://doi.org/10.1016/j.coastaleng.2017.07.006

   Petrone, C., Rossetto, T. and Goda, K., 2017. Fragility assessment of a RC structure under tsunami actions via nonlinear static and dynamic analyses. Engineering Structures, 136, pp.36-53.. DOI: https://doi.org/10.1016/j.engstruct.2017.01.013

The tsunami relative risk index (TRRI) for hospitals quantifies the impacts of tsunami on critical units (e.g. Intensive Care Unit, Maternity Ward, etc), as well as the impact on service provision across a network of hospitals. The TRRI is evaluated for three potential tsunami inundation events and is shown to be able to identify issues with both the buildings and functional aspects of hospital critical units.
TRRI can be used by decision makers to simply explore the effectiveness of individual and combined interventions in improving the tsunami resilience of healthcare provision across the hospital system.

Available soon!

The Hospital Structural Robustness Assessment tool defines a hospital Structural Robustness index (SRI) which can be used to highlight the relative weaknesses of the hospital in relation to tsunami. Hospital robustness attributes and assessment criteria are assigned relative importance of each attribute is obtained through expert opinion surveys, using a pair-wise comparison method following the Analytical Hierarchy Process (AHP). The well-established Papathoma Tsunami Vulnerability Assessment (PTVA) used to define a Structural Robustness Index (SRI).

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Available soon!