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Abstract
Evaluating the seismic performance of a 3D concrete dam using nonlinear response history analysis (NLRHA) requires three orthogonal components of ground acceleration histories, or ground motions (GMs) for brevity. Although much progress has been made for the topic of ground motion selection and modification (GMSM) in the context of multistory buildings, NLRHA of dams requires at least two additional considerations: (i) accounting for multiple modes of vibration and (ii) including three orthogonal components of GMs. To convey the key ideas in developing an ensemble of multicomponent GMs for this context, the fundamentals of GMSM are first briefly reviewed using a case study. Then, special considerations for concrete dams are highlighted. Finally, a practical method for developing target spectra and selecting multicomponent GMs is presented.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Ground motion selection for nonlinear response history analyses of concrete dams |
| Year Published | 2022 |
| Language | English |
| Publisher | United States Society on Dams (USSD) |
| Contributing office(s) | Geologic Hazards Science Center |
| Description | 15 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | 2022 USSD annual conference & exhibition |
| Google Analytic Metrics | Metrics page |