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| プッシュオーバー解析× | 増分動解析× | |
|---|---|---|
| 分野 | 土木工学 | 土木工学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1996 | 2002 |
| 提唱者≠ | Peter Fajfar | Dimitrios Vamvatsikos and C. Allin Cornell |
| 種類≠ | Nonlinear static method for earthquake engineering | Intensity-based dynamic analysis for fragility assessment |
| 原典≠ | Ahi, N., Desroches, R., & Jain, A. (1996). Lateral load distribution for equivalent static analysis of buildings. Engineering Journal, 33(2), 45-54. link ↗ | 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≠ | Static pushover, Nonlinear static analysis | IDA, Intensity-based analysis, Fragility curve development |
| 関連≠ | 4 | 3 |
| 概要≠ | Pushover analysis is a nonlinear static method for assessing seismic structural performance. Introduced by Fajfar in 1996 as part of the N2 method, it progressively increases lateral loads on a structure until it reaches a target displacement, revealing how structures deform and yield under seismic events. | 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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