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Accelerating uncertainty quantification in incremental dynamic analysis using dimension reduction-based surrogate modeling
https://orcid.org/http://orcid.org/0000-0003-2272-2584
We propose a surrogate modeling framework based on dimension reduction to facilitate the quantification of seismic risk of structural systems in performance-based earthquake engineering. The framework adopts incremental dynamic analysis (IDA) for addressing hazard variability, and promotes significant computational efficiency improvement for propagating epistemic uncertainties associated with the structural models. It utilizes both linear and nonlinear dimension reduction approaches, equipped with inverse mappings, to learn a functional between the input parameter space (e.g., the epistemic uncertainties of the structure) to the high-dimensional output space created through the IDA implementation across different ground motions and seismic intensity levels. Polynomial chaos expansion is adopted as the surrogate model to learn this functional in the reduced space. A nine-story steel moment-resisting frame with uncertain structural properties is used as a testbed. We select the seismic fragility curves as a measure of the structure’s seismic performance, since it provides an estimate of the probability of entering specified damage states for given levels of ground shaking.
Accelerating uncertainty quantification in incremental dynamic analysis using dimension reduction-based surrogate modeling
https://orcid.org/http://orcid.org/0000-0003-2272-2584
We propose a surrogate modeling framework based on dimension reduction to facilitate the quantification of seismic risk of structural systems in performance-based earthquake engineering. The framework adopts incremental dynamic analysis (IDA) for addressing hazard variability, and promotes significant computational efficiency improvement for propagating epistemic uncertainties associated with the structural models. It utilizes both linear and nonlinear dimension reduction approaches, equipped with inverse mappings, to learn a functional between the input parameter space (e.g., the epistemic uncertainties of the structure) to the high-dimensional output space created through the IDA implementation across different ground motions and seismic intensity levels. Polynomial chaos expansion is adopted as the surrogate model to learn this functional in the reduced space. A nine-story steel moment-resisting frame with uncertain structural properties is used as a testbed. We select the seismic fragility curves as a measure of the structure’s seismic performance, since it provides an estimate of the probability of entering specified damage states for given levels of ground shaking.
Accelerating uncertainty quantification in incremental dynamic analysis using dimension reduction-based surrogate modeling
https://orcid.org/http://orcid.org/0000-0003-2272-2584
We propose a surrogate modeling framework based on dimension reduction to facilitate the quantification of seismic risk of structural systems in performance-based earthquake engineering. The framework adopts incremental dynamic analysis (IDA) for addressing hazard variability, and promotes significant computational efficiency improvement for propagating epistemic uncertainties associated with the structural models. It utilizes both linear and nonlinear dimension reduction approaches, equipped with inverse mappings, to learn a functional between the input parameter space (e.g., the epistemic uncertainties of the structure) to the high-dimensional output space created through the IDA implementation across different ground motions and seismic intensity levels. Polynomial chaos expansion is adopted as the surrogate model to learn this functional in the reduced space. A nine-story steel moment-resisting frame with uncertain structural properties is used as a testbed. We select the seismic fragility curves as a measure of the structure’s seismic performance, since it provides an estimate of the probability of entering specified damage states for given levels of ground shaking.
Accelerating uncertainty quantification in incremental dynamic analysis using dimension reduction-based surrogate modeling
Bull Earthquake Eng
Giovanis, Dimitris G. (author) / Taflanidis, Alexandros (author) / Shields, Michael D. (author)
Bulletin of Earthquake Engineering ; 23 ; 391-410
2025-01-01
20 pages
Article (Journal)
Electronic Resource
English
Incremental dynamic analysis , Dimension reduction , Uncertainty quantification , Surrogate modeling Engineering , Civil Engineering , Earth Sciences , Geotechnical Engineering & Applied Earth Sciences , Environmental Engineering/Biotechnology , Geophysics/Geodesy , Hydrogeology , Structural Geology , Earth and Environmental Science
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