Drift demand predictions in low to moderate seismicity regions

This paper presents results obtained from a recent study which is aimed at assessing the drift demand on buildings of different height ranges for projected earthquake scenarios in Australia. Parametric studies of tall buildings have been carried out based on modal analysis. Important parameters defining the response behaviour of buildings including building height, structural configurations and form of construction have been collated from recent field survey reports. The estimated drift demands can be compared with the limiting drift capacity to enable various levels of damage to be predicted for given earthquake scenarios, building types and site classes.