Damping-Dependent Coefficients for Maximum Response Estimation of Isolated Structures

Abstract

The equivalent linearization method (ELM) is often used to estimate the maximum displacement of isolated structures. Damping-dependent coefficients (CD) which are a scale multiplier required to give simplified elastic acceleration design spectra (EADS) for greater damping values are proposed. The CD is obtained from the relationship between nonlinear time history analysis (NTHA) and ELM using the standard waves from various ground types and different types of earthquakes. The proposed CD is compared to the previous one and validated for various isolated structures under a natural earthquake and standard waves.