方法对比
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| 增量动力分析× | 非线性时程分析× | |
|---|---|---|
| 领域 | 土木工程 | 土木工程 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 2002 | 1959 |
| 提出者≠ | Dimitrios Vamvatsikos and C. Allin Cornell | Nathan M. Newmark |
| 类型≠ | Intensity-based dynamic analysis for fragility assessment | Time-stepping numerical method for earthquake engineering |
| 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 ↗ | Newmark, N. M. (1959). A method of computation for structural dynamics. Journal of the Engineering Mechanics Division, 85(3), 67-94. DOI ↗ |
| 别名 | IDA, Intensity-based analysis, Fragility curve development | Nonlinear dynamic analysis, Step-by-step integration, Time domain analysis |
| 相关≠ | 3 | 4 |
| 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. | Nonlinear time-history analysis is a numerical method that solves the equations of motion step-by-step in the time domain, using recorded or synthetic earthquake ground motions as input. Developed by Newmark in 1959, this approach captures the full dynamic response of structures including material nonlinearity, geometric effects, and energy dissipation mechanisms. |
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