Energy and spectral indicators support screening for soil structure interaction sensitivity in steel moment frames
- 1Department of Civil Engineering, Technical and Vocational University (TVU)
Abstract
Soil–structure interaction (SSI) can increase or decrease seismic demand depending on structural, foundation, and ground-motion characteristics. This study evaluates whether SSI-sensitive cases in steel special moment-resisting frames can be prioritized using energy-based flexibility indices and record-specific spectral information. Three 4-, 8-, and 16-story frames were analyzed under five far-field records, three intensity levels, and three soil-stiffness levels, yielding 180 nonlinear analyses and 135 fixed-base/SSI comparisons. Larger translational and rocking flexibility contributions were associated with larger absolute drift changes, while spectral information improved directional interpretation within the development data. A frozen model was then tested without recalibration on 17 additional FEMA P695 records, adding 204 analyses. For 81 spectral-eligible comparisons from 10 independent new events, the combined model yielded an RMSE of 0.0191, a sign balanced accuracy of 0.628, and a three-class balanced accuracy of 0.514, and did not outperform a zero-change baseline in continuous RMSE. Thus, the indices retain value for mechanistic interpretation and within-domain prioritization, but the fitted coefficients and screening performance are not uniformly transferable. The framework is therefore a screening heuristic, not a substitute for direct nonlinear SSI analysis.
Related
- Serum Cystatin 4 combined with routine clinical laboratory indicators: A support vector machine diagnostic model for early screening of gastrointestinal tumors
- High-throughput screening to identify inhibitors of the MTB CARD•RNA polymerase protein-protein interaction
- Genome-wide CRISPR-screening identifies p53 as regulator of cancer cell sensitivity to the histone evicting anthracycline aclarubicin.
- A Structure-Based hERG Pose Selection Workflow Integrating Induced-Fit Docking, Shape Similarity, Interaction Fingerprints, and Molecular Dynamics
- Sensitivity and specificity of tuberculosis screening tools in people with diabetes
BibTeX
@article{mortezaie2026energy,
title = {{Energy and spectral indicators support screening for soil structure interaction sensitivity in steel moment frames}},
author = {Hamid Mortezaie},
journal = {Scientific Reports},
year = {2026},
month = sep,
doi = {10.1038/s41598-026-73313-0},
url = {https://doi.org/10.1038/s41598-026-73313-0},
note = {CC BY},
}
RIS
TY - JOUR
TI - Energy and spectral indicators support screening for soil structure interaction sensitivity in steel moment frames
AU - Hamid Mortezaie
PY - 2026
DA - 2026/09/01
JO - Scientific Reports
DO - 10.1038/s41598-026-73313-0
UR - https://doi.org/10.1038/s41598-026-73313-0
AB - Soil–structure interaction (SSI) can increase or decrease seismic demand depending on structural, foundation, and ground-motion characteristics. This study evaluates whether SSI-sensitive cases in steel special moment-resisting frames can be prioritized using energy-based flexibility indices and record-specific spectral information. Three 4-, 8-, and 16-story frames were analyzed under five far-field records, three intensity levels, and three soil-stiffness levels, yielding 180 nonlinear analyses and 135 fixed-base/SSI comparisons. Larger translational and rocking flexibility contributions were associated with larger absolute drift changes, while spectral information improved directional interpretation within the development data. A frozen model was then tested without recalibration on 17 additional FEMA P695 records, adding 204 analyses. For 81 spectral-eligible comparisons from 10 independent new events, the combined model yielded an RMSE of 0.0191, a sign balanced accuracy of 0.628, and a three-class balanced accuracy of 0.514, and did not outperform a zero-change baseline in continuous RMSE. Thus, the indices retain value for mechanistic interpretation and within-domain prioritization, but the fitted coefficients and screening performance are not uniformly transferable. The framework is therefore a screening heuristic, not a substitute for direct nonlinear SSI analysis.
SN - 2045-2322
ER -