Conditional spectrum record selection faithful to causative earthquake parameter distributions

نویسندگان

چکیده

In performance-based earthquake wngineering, record selection comes into play at the interface of seismic hazard and structural analysis aiming to repair any loss essential seismological dependencies caused by choice an insufficient intensity measure be used for response prediction. Site-specific is best exemplified prominent conditional spectrum (CS) approach that attempts ensure a hazard-consistent prediction involving site disaggregation. Specifically, CS utilizes target (with mean dispersion) that, in its latest formulation, accounts all scenarios (in terms magnitude, M, closest rupture distance, R) contributing given level. The ground motion records, however, are selected match this spectrum–based solely on their spectral shape but with no explicit consideration underlying M-R characteristics. main focus study explore whether reintroduction criteria process preserves hidden may otherwise lost through spectral-shape-only proxy. proposed method, termed CS-MR, offers simple maintain higher order consistency able indirectly account metrics depend (e.g., duration, Arias intensity) not captured spectra. Herein CS-MR favorably compared generalized methods select records according to, respectively, only and, case hand, plus duration.

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ژورنال

عنوان ژورنال: Earthquake Engineering & Structural Dynamics

سال: 2021

ISSN: ['0098-8847', '1096-9845']

DOI: https://doi.org/10.1002/eqe.3465