TY - GEN
T1 - Multi-objective optimization for maintenance of structures, considering structural deterioration
AU - Tolentino, D.
AU - Ruiz, S. E.
PY - 2013
Y1 - 2013
N2 - A multi-objective criterion for making optimal decisions when evaluating ageing structures, taking into account the degradation of mechanical properties and its influence over time on the structural capacity and on the structural demand for a given intensity, is proposed. The set of time intervals for maintenance corresponds to a balance between three objectives: A) structural reliability, b) damage index and c) expected cumulative total cost. Reliability is expressed in terms of the confidence factors as functions of time by means of closed-form mathematical expressions which consider structural deterioration. Damage index is represented by the ratio between the structural capacity and the structural demand. Expected cumulative total cost considers costs of inspection, repair and failure over the time interval. The multi-objective criterion is applied to an offshore "jacket" platform located at Campeche Bay in the Gulf of Mexico.
AB - A multi-objective criterion for making optimal decisions when evaluating ageing structures, taking into account the degradation of mechanical properties and its influence over time on the structural capacity and on the structural demand for a given intensity, is proposed. The set of time intervals for maintenance corresponds to a balance between three objectives: A) structural reliability, b) damage index and c) expected cumulative total cost. Reliability is expressed in terms of the confidence factors as functions of time by means of closed-form mathematical expressions which consider structural deterioration. Damage index is represented by the ratio between the structural capacity and the structural demand. Expected cumulative total cost considers costs of inspection, repair and failure over the time interval. The multi-objective criterion is applied to an offshore "jacket" platform located at Campeche Bay in the Gulf of Mexico.
UR - http://www.scopus.com/inward/record.url?scp=84892380723&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:84892380723
SN - 9781138000865
T3 - Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
SP - 4973
EP - 4978
BT - Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
T2 - 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Y2 - 16 June 2013 through 20 June 2013
ER -