Development of a Soil Site Ground Motion Database for Australian Seismic Structural Design

Abstract

This paper presents the development of a ground motion acceleration database that is specifically established for seismic structural design purpose in Australia. The database particularly focuses on providing abundant accelerograms representing earthquakes with a 500-year and 2500-year return period based on the Australian code spectrum model. Typical soil profiles were derived from borehole records in Melbourne, Sydney and Brisbane to account for the sediment amplification effect on soil sites, considering the site natural period as the main classification parameter. Using the equivalent linear analysis, a suite of MATLAB programs referred to as SUA was validated by comparison with results ..