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| Interaktion mellan mark och konstruktion× | Probabilistisk analys av seismisk farlighet (PSHA)× | |
|---|---|---|
| Ämnesområde | Samhällsbyggnadsteknik | Samhällsbyggnadsteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1974 | 1968 |
| Upphovsperson≠ | Artur S. Veletsos | C. Allin Cornell |
| Typ≠ | Dynamic analysis of coupled soil-foundation-structure systems | Quantitative probabilistic framework |
| Ursprungskälla≠ | Veletsos, A. S., & Meek, J. W. (1974). Dynamic behaviour of building-foundation systems. Earthquake Engineering & Structural Dynamics, 3(2), 121-138. DOI ↗ | Cornell, C. A. (1968). Engineering seismic risk analysis. Bulletin of the Seismological Society of America, 58(5), 1583–1606. link ↗ |
| Alias≠ | SSI analysis, Foundation compliance, Dynamic foundation analysis | PSHA, seismic hazard analysis, probabilistic earthquake hazard assessment, Cornell-McGuire method |
| Närliggande≠ | 4 | 1 |
| Sammanfattning≠ | Soil-structure interaction (SSI) analysis accounts for the dynamic coupling between a structure and its supporting foundation soil, recognizing that the soil is not infinitely rigid. Formalized by Veletsos in 1974, this approach reveals how foundation compliance, radiation damping, and kinematic effects modify the structure's seismic response compared to fixed-base assumptions. | Probabilistic Seismic Hazard Analysis (PSHA) is a quantitative engineering framework used in civil and geotechnical engineering to estimate the likelihood that ground shaking will exceed a specified intensity level at a site within a given time window. By combining earthquake source geometry, recurrence statistics, and ground-motion attenuation models, PSHA produces hazard curves and maps that inform seismic design codes, infrastructure planning, and risk management decisions. |
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