题名: |
Optimal Inspection Plan for Deteriorating Structural Members Using Stochastic Models with Application to Buried Pipelines |
正文语种: |
英文 |
作者: |
Chun-Qing Li1; Hassan Baji2; Wei Yang3 |
作者单位: |
1Professor, School of Engineering, RMIT Univ., Melbourne 3000, Australia (corresponding author).
2Lecturer, School of Engineering and Technology, Central Queensland Univ., Cairns 4870, Australia.
3Lecturer, College of Engineering and Science, Victoria Univ.,Melbourne 8001, Australia. |
关键词: |
Inspection; Maintenance; Optimization; Stochastic process; Time-dependent reliability |
摘要: |
The deterioration of structural systems is unavoidable after their long time in service. To ensure the safety of these systems, an effective inspection strategy with a minimal cost is essential. This paper presents an analytical approach for determining the optimal inspection plan using a cost-based criterion in which structural damage and failure are modeled as stochastic processes. This allows the consideration of the correlation of damages at different times in the reliability-based inspection plan. An example is provided to illustrate the application of the proposed methodology, taking the number of inspection actions and the critical damage level at which repair is performed as the optimization variables. The proposed procedure provides a fast solution for the optimization of an inspection plan with superior performance over those based on simulation. In addition, correlation has a big impact on the result of an optimal inspection plan matching that of the cost of failure. |
出版年: |
2019 |
期刊名称: |
Journal of Structural Engineering |
卷: |
145 |
期: |
11 |
页码: |
1-14 |