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- Title
Quantification of modeling uncertainty in the Rayleigh damping model.
- Authors
Ghahari, Farid; Sargsyan, Khachik; Taciroglu, Ertugrul
- Abstract
Understanding and accurately characterizing energy dissipation mechanisms in civil structures during earthquakes is an important element of seismic assessment and design. The most commonly used model is attributed to Rayleigh. This paper proposes a systematic approach to quantify the uncertainty associated with Rayleigh's damping model. Bayesian calibration with embedded model error is employed to treat the coefficients of the Rayleigh model as random variables using modal damping ratios. Through a numerical example, we illustrate how this approach works and how the calibrated model can address modeling uncertainty associated with the Rayleigh damping model.
- Subjects
RAYLEIGH model; RANDOM variables; EARTHQUAKE resistant design; ENERGY dissipation; PREDICATE calculus; EARTHQUAKE engineering
- Publication
Earthquake Engineering & Structural Dynamics, 2024, Vol 53, Issue 9, p2950
- ISSN
0098-8847
- Publication type
Article
- DOI
10.1002/eqe.4143