方法对比
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| 增量动力分析× | 概率地震危险性分析 (PSHA)× | |
|---|---|---|
| 领域 | 土木工程 | 土木工程 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 2002 | 1968 |
| 提出者≠ | Dimitrios Vamvatsikos and C. Allin Cornell | C. Allin Cornell |
| 类型≠ | Intensity-based dynamic analysis for fragility assessment | Quantitative probabilistic framework |
| 开创性文献≠ | Vamvatsikos, D., & Cornell, C. A. (2002). Incremental dynamic analysis of seismic performance of structures. Earthquake Engineering & Structural Dynamics, 31(3), 491-514. DOI ↗ | Cornell, C. A. (1968). Engineering seismic risk analysis. Bulletin of the Seismological Society of America, 58(5), 1583–1606. link ↗ |
| 别名≠ | IDA, Intensity-based analysis, Fragility curve development | PSHA, seismic hazard analysis, probabilistic earthquake hazard assessment, Cornell-McGuire method |
| 相关≠ | 3 | 1 |
| 摘要≠ | Incremental dynamic analysis (IDA) is a method that runs time-history analyses on a structure with a single ground motion record, progressively increasing the intensity until the structure reaches a specified performance level or collapses. Introduced by Vamvatsikos and Cornell in 2002, this approach efficiently generates fragility curves relating earthquake intensity to structural damage and collapse probability. | 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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