Hilbert–Huang-Transform-Based Seismic Intensity Measures for Rocking Response Assessment

Structures that can uplift and rock under severe seismic excitations present remarkable stability without exhibiting damage. As such, rocking-response-based structural systems constitute a promising design practice. Due to the high nonlinearity of rocking response, performance this class structures should be evaluated probabilistically. From point view, in study, 12 novel HHT-based intensity measures (IMs) describing behavior typical viaducts was assessed based on optimal IM selection criteria. To end, comparative evaluation between proposed 26 well-known conventional IMs presented. Moreover, bivariate were also considered, fragilities provided. Finally, classification response conducted using discriminant analysis, resulting reliable rapid estimation maximum demand. Based results, it is evident result an enhanced examined system.