A recommended earthquake response spectrum model for Australia

Abstract

Response spectrum provisions in the current Australian Earthquake Loading Standard (AS1170.4) were based on recommendations from the 1991 edition of the Uniform Building Code for the United States. Since the implementation of AS1170.4 in 1993 there have been significant developments internationally and in Australia in the area of response spectrum modelling on both rock and soil sites. In this paper, a new normalised design response spectrum is recommended for rock sites in Australia based on a response spectral velocity of 1.8 times the peak ground velocity, and corner periods of T1=0.35secs and T2=1.5secs (based on a magnitude 7 earthquake event). The recommended rock response spectra for ..