TY - GEN
T1 - A dynamic Bayesian networks model for structural time-dependent reliability with deterioration
AU - Wu, Z. Y.
AU - Sun, H. B.
AU - Liu, S. K.
PY - 2013
Y1 - 2013
N2 - A dynamic Bayesian network (DBN) model is proposed for time-dependent reliability of structure with resistance deterioration. Gamma process is selected to model the deterioration process and loads are considered as random variables.The DBN of the structural time-dependent reliability is established by combining three models:deterioration model, reliability model, observation model, and is simplified with node elimination algorithm and discretization to allow exact inference. The framwork proposed is demonstrated by a one-bay frame with resistance deterioration. Comparison of the results obtained by DBN with Monte Carlo simulation approach, in terms of reliability index for 30 years shows the validity and accuracy of the DBN approach. Also exact inference of DBN such as filtering, prediction and smoothing with 10 years' evidence is presented in this paper.
AB - A dynamic Bayesian network (DBN) model is proposed for time-dependent reliability of structure with resistance deterioration. Gamma process is selected to model the deterioration process and loads are considered as random variables.The DBN of the structural time-dependent reliability is established by combining three models:deterioration model, reliability model, observation model, and is simplified with node elimination algorithm and discretization to allow exact inference. The framwork proposed is demonstrated by a one-bay frame with resistance deterioration. Comparison of the results obtained by DBN with Monte Carlo simulation approach, in terms of reliability index for 30 years shows the validity and accuracy of the DBN approach. Also exact inference of DBN such as filtering, prediction and smoothing with 10 years' evidence is presented in this paper.
UR - http://www.scopus.com/inward/record.url?scp=84892377665&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84892377665
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 - 1191
EP - 1197
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 -