Uncertainty-based quantitative model for assessing risks in existing buildings

The assessment and management of risks in existing buildings by an uncertainty-based quantity model are discussed. Risk analysis involved three interrelated aspects, namely, risk assessment, risk management of mitigation and risk communication to the general public and concerned agencies. The proposed methodology allows for perceived importance with which different stakeholders in building view the interaction between vulnerable risk targets and building elements, cybernetic, mechanical and electrical system failure and that are affected by different hazard categories. A decision tree diagram approach was adopted for greater clarity in visualizing the process as well as the ease with which it provides in performing the sequential calculations.