LIFE-CYCLE OPTIMIZATION AND MANAGEMENT AT THE BASIC DESIGN PHASE: A RISK-BASED COST MODELLING APPROACH
Résumé
In order for a structure to satisfactorily fulfil its intended function(s) during the operational phase, lifecycle considerations must be integrated at all stages, notably in terms of life-cycle optimization (during Design and Construction) and management (during Operation). We will review some of the main concepts involved in life-cycle optimization during the basic design phase, illustrated by the application to the case of nuclear new build. At the initial design stages of a project, major considerations (e.g.: basic concept, site, etc.) require fundamental decisions to be made which affect the entire life-cycle of the structure. Therefore it is critical to consider all the available information to make strategically informed decisions. Often shortterm financial concerns may override long-term technical ones. In some cases, this may be a beneficial way to proceed, while in others it can be self-defeating. We will look at how to combine financial and technical considerations using a risk-based approach to provide the broadest possible perspective, leading to fully informed decision making and an optimized life-cycle.
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