A risk-based system for managing the retrofitting of school buildings in seismic prone areas: a case study from Iran
International Journal of Risk Assessment and Management
Earthquake events are inevitable but the consequences of earthquake disasters are partially controllable using an effective risk management system, since the seismic risk is the interaction of ground shaking intensity with the built environment. A systematic risk-based method is proposed for assessing the resilience capacities of school buildings exposed to varying levels of seismic risk. This approach screens and monitors the equivalent seismic performance of buildings by the means of new
... site risk index (FSRi). The process of performance assessment of existing buildings is usually performed through walk-down surveys and associated with expert judgments which are often highly subjective. The pervasive nature of uncertainty within the risk assessment process often ignored or not completely reflected within the existing models. To handle the uncertainty associated with risk attributes, fuzzy set theory was used to characterize the uncertain qualitative information. The application of the model was applied to retrofitting school buildings in Iran. The screening results reveal that the composite risk index (FSRi) does not necessarily follow its factors' trends and therefore relying on sole factors such as hazard and vulnerability may mislead the decision making process . Therefore seismic mitigation decisions should be made in compliance with the multi dimensional aspects of seismic risk as an aggregated index rather , such as FSRi.