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首页> 外文会议>The 7th China-Japan-Korea joint symposium on optimization of structural and mechanical systems >Time variant reliability analysis and the optimum maintenance strategy of deteriorating structures
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Time variant reliability analysis and the optimum maintenance strategy of deteriorating structures

机译：变质结构的时变可靠性分析和最优维修策略

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摘要

Under the effects of loads, environments and interior factors of materials, the performance of civil engineering structures will deteriorate gradually.Appropriate health monitoring and damage detection is of great significance to ensure the structural safety and reliability.A time variant structural reliability model based on degradation rule is proposed in this paper.In the reliability model, the deterioration process is modeled as a gamma process, and the stochastic process of load is described by a Poisson process.On this basis, a total life cycle cost model of the structure including inspection costs, maintenance costs and failure loss is established based on which the total cost is minimized through proper maintenance strategy. The time variant reliability model and total life cycle cost model are validated through an example of a dike section.
机译：在材料的载荷，环境和内部因素的影响下，土木工程结构的性能将逐渐下降，适当的健康监测和损伤检测对确保结构安全性和可靠性具有重要意义。在可靠性模型中，将退化过程建模为伽马过程，并通过泊松过程描述了载荷的随机过程。在此基础上，该结构的总生命周期成本模型包括检验确定成本，维护成本和故障损失，然后通过适当的维护策略将总成本降至最低。通过堤防部分的示例验证了时变可靠性模型和总生命周期成本模型。

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