Risk Targets for Recovery-Based Design of Individual Buildings Considering Regional Performance

Abstract

The development of risk-targeted design loads for recovery-based design first requires consensus around acceptable levels of building risk, specifically in terms of recovery-based performance objectives such as reoccupancy and functional recovery. This study provides context to potential risk-based building recovery performance objectives by quantifying the relationship between target building-level recovery performance and regional recovery using a probabilistic regional seismic loss analysis of residential buildings in downtown San Francisco. In comparing building risk with regional risk, we find that the risk of failing regional recovery objectives was significantly higher than comparable levels of individual building risk.