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| 地盤構造物相互作用× | 増分動解析× | |
|---|---|---|
| 分野 | 土木工学 | 土木工学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1974 | 2002 |
| 提唱者≠ | Artur S. Veletsos | Dimitrios Vamvatsikos and C. Allin Cornell |
| 種類≠ | Dynamic analysis of coupled soil-foundation-structure systems | Intensity-based dynamic analysis for fragility assessment |
| 原典≠ | Veletsos, A. S., & Meek, J. W. (1974). Dynamic behaviour of building-foundation systems. Earthquake Engineering & Structural Dynamics, 3(2), 121-138. DOI ↗ | Vamvatsikos, D., & Cornell, C. A. (2002). Incremental dynamic analysis of seismic performance of structures. Earthquake Engineering & Structural Dynamics, 31(3), 491-514. DOI ↗ |
| 別名 | SSI analysis, Foundation compliance, Dynamic foundation analysis | IDA, Intensity-based analysis, Fragility curve development |
| 関連≠ | 4 | 3 |
| 概要≠ | 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. | 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. |
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