In order to exploit the available resources as efficiently as possible, a consistent way to evaluate existing structures and propose the most suitable maintenance, repair or strengthening strategy is needed. Therefore, this workpackage focusses on the decision making and optimization of structural interventions based on all relevant information from monitoring, inspection and testing. The optimization is performed considering different performance objectives related to durability considerations, target safety levels and budgetary constraints.
In order to make decisions, a minimal life-cycle based cost optimization procedure will be used. This total life-cycle cost includes besides the construction cost and direct or indirect costs associated with stuctural failure, also the costs of inspection and monitoring, and the costs associated with the repair or strengthening strategy. This life-cycle cost will be used to objectively optimise sructural interventions including the type of intervention, the amount of interventions throughout the structures lifetime and the quality of the inspection.