Building portfolio seismic loss assessment using the First-Order Reliability Method

摘要: Abstract The aggregate loss to a portfolio of buildings given seismic event is interest parties such as insurance companies, developers, political organizations and community planners. Regional level estimations tend be more complex than site-specific assessments due the correlation that exists between performances spatially distributed within single hazard. This paper presents new reliability-based approach quantify risk for buildings, while incorporating this correlation. proposed framework uses First-Order Reliability Method (FORM) evaluate probability distribution suite buildings. It applied San Francisco neighborhood building inventory estimate total repair cost scenario earthquake prioritize cost-effective retrofit schemes in terms reducing loss. information provided by using method expected facilitate efficient management mitigation decision-making.