| Přispěvatelé: |
Margani G., Rodono', G., Sapienza V., Nicolella, M., Scognamillo, C., Pino, A. |
| Popis: |
The life cycle of building components can be managed according to different maintenance strategies, which mainly differ in performance and economic terms. What is the most convenient among the possible scenarios? It has been shown in the past that the typology of maintenance interventions and the consequent periodicity are closely related to performance decay, and can lead to choices that, however, generally concern the purely economic sphere. In this sense, it seems interesting to know the modalities of the performance decay, which may allow – even though for many components the "measurement" of its values is problematic - the construction of performance / time curves. This result was possible, in other experiments conducted in the past, for one of the components to be considered most critical for the whole building (the plaster), thanks to a study that sampled 53 buildings with homogeneous characteristics (both from the technological point of view and from the era of realization), observed within 20 years. This paper highlights that the only economic evaluation is not enough to identify the ideal solution, because – inter alia - there is a more suitable solution depending on the context framework in which the decision maker is operating. Commitment, budget, component typology, time span to consider, are the main factors influencing the choice, not ignoring design issues. A Topsis multicriteria analysis is proposed, the results of which are an interesting starting point for define maintenance plans characterized by greater reliability, not only technical but also economical. |
