TY - JOUR
T1 - Stochastic maintenance models for ceramic claddings
AU - Ferreira, Cláudia
AU - Neves, Luís Canhoto
AU - Silva, Ana
AU - de Brito, Jorge
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F88195%2F2012/PT#
The authors gratefully acknowledge the support of the CERIS Research Institute, IST, University of Lisbon and the FCT (Foundation for Science and Technology), through the projects SLPforBMS (PTDC/ECM‐COM/5772/2014) and Best Maintenance-Lower Risks (PTDC/ECI-CON/29286/2017).
PY - 2020/2/1
Y1 - 2020/2/1
N2 - Maintenance decision-making involves a series of multiple objectives, some of them contradictory. Usually, stakeholders intend to find the optimal maintenance strategy, to minimize the economic burden, while simultaneously maximizing the buildings’ performance. In this study, a condition-based maintenance model, based on Petri nets, is proposed to evaluate the consequences of alternative maintenance strategies to maintain and improve the performance of ceramic claddings. This maintenance model is a full life-cycle model that integrates the stochastic assessment of the degradation condition of the claddings, and also inspections, maintenance and renewal processes. Three maintenance strategies are considered: (i) major intervention only; (ii) combination of minor and major interventions; and (iii) combination of cleaning operations, minor and major interventions. The uncertainties associated with the degradation process, as well as with the definition of the effects of maintenance actions are considered by modelling the transitions times in Petri nets as random variables. Considering the complexity of Petri nets, the statistical descriptors of the performance of the assets (e.g., mean condition, probability of applying maintenance) were computed using Monte Carlo simulation. The impact of the different maintenance strategies in the claddings’ service life is discussed, comparing the different alternatives also from an economic point of view.
AB - Maintenance decision-making involves a series of multiple objectives, some of them contradictory. Usually, stakeholders intend to find the optimal maintenance strategy, to minimize the economic burden, while simultaneously maximizing the buildings’ performance. In this study, a condition-based maintenance model, based on Petri nets, is proposed to evaluate the consequences of alternative maintenance strategies to maintain and improve the performance of ceramic claddings. This maintenance model is a full life-cycle model that integrates the stochastic assessment of the degradation condition of the claddings, and also inspections, maintenance and renewal processes. Three maintenance strategies are considered: (i) major intervention only; (ii) combination of minor and major interventions; and (iii) combination of cleaning operations, minor and major interventions. The uncertainties associated with the degradation process, as well as with the definition of the effects of maintenance actions are considered by modelling the transitions times in Petri nets as random variables. Considering the complexity of Petri nets, the statistical descriptors of the performance of the assets (e.g., mean condition, probability of applying maintenance) were computed using Monte Carlo simulation. The impact of the different maintenance strategies in the claddings’ service life is discussed, comparing the different alternatives also from an economic point of view.
KW - Ceramic claddings
KW - degradation
KW - inspections
KW - interventions
KW - maintenance modeling
KW - Monte Carlo simulation
KW - Petri nets
UR - http://www.scopus.com/inward/record.url?scp=85071022592&partnerID=8YFLogxK
U2 - 10.1080/15732479.2019.1652657
DO - 10.1080/15732479.2019.1652657
M3 - Article
AN - SCOPUS:85071022592
SN - 1573-2479
VL - 16
SP - 247
EP - 265
JO - Structure and Infrastructure Engineering
JF - Structure and Infrastructure Engineering
IS - 2
ER -