Study of Ground Motion Models Selection to the Concrete Frame Building Damage Probability using the 2006 Yogyakarta Earthquake Scenario

Damage probability assessment using the ground motion prediction equation (GMPE) models is paramount in seismic risk analysis. Several GMPE models have been proposed and developed worldwide. However, it has its parameters and gives different spectral acceleration results. The study aimed to investigate the impact of GMPE model selection on the estimation of building damage probability due to the scenario of Yogyakarta earthquake. In the beginning, we modeled the 3D-concrete moment frame building, followed by conducting pushover analysis to determine the building responses and calculating the building damage probability based on HAZUS method to generate fragility curve and damage probability matrix. Five GMPE models were employed in this study. The results revealed that for the modeled structure, the GMPE of Ambraseys et al. (1996) gave the highest value of the peak building response compared to the GMPE of Sadigh et al. (1997), Boore et al. (1997), Spudich et al. (1999) and Idriss (2002). The probability of moderate, extensive, and complete damage levels was also dominated by the GMPE of Ambraseys et al. (1996), which indicated that in this case, the use of this GMPE would produce the most severe damage probability value.