Process / pipelineSeismic Risk Assessment
Incremental Dynamic Analysis
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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Sources
- Vamvatsikos, D., & Cornell, C. A. (2002). Incremental dynamic analysis of seismic performance of structures. Earthquake Engineering & Structural Dynamics, 31(3), 491-514. DOI: 10.1002/eqe.141 ↗
- Cornell, C. A., Jalayer, F., Hamburger, R. O., & Foutch, D. A. (2002). Probabilistic basis for 2000 SAC federal emergency management agency steel moment frame guidelines. Journal of Structural Engineering, 128(4), 526-533. DOI: 10.1061/(ASCE)0733-9445(2002)128:4(526) ↗
- Luco, N., & Cornell, C. A. (2007). Structure-specific scalar intensity measures for near-source and broadband ground motions. Journal of Engineering Mechanics, 133(4), 445-456. DOI: 10.1061/(ASCE)0733-9399(2007)133:4(445) ↗