Modelling and Integration of Spatial Time-Dependent Variability in Structural Reliability Analysis

结构可靠性分析中空间随时间变化的建模和积分

• 批准号: DP0451871
• 负责人: Prof Robert Melchers
• 金额: $ 15.11万
• 依托单位: The University of Newcastle
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0451871
• 关键词: Modelling; Integration; Spatial; Time; Dependent

This project deals with some theoretical aspects of the increasingly important practical problem of realistic assessment of the remaining safe and serviceable life of deteriorating infrastructure. It uses cutting-edge techniques in stochastic structural mechanics to model spatial variability due to pitting corrosion in reinforced concrete structures. This is then extended to the time dependent domain to reflect deterioration processes. These are calibrated to experimental data generated in the project. In parallel, a novel technique is developed to incorporate these spatial models in procedures for time dependent structural reliability analysis. The outcomes will enhance engineering risk assessment for infrastructure decision-making.

这个项目涉及现实地评估日益恶化的基础设施的剩余安全和使用寿命这一日益重要的实际问题的某些理论方面。它使用随机结构力学的尖端技术来模拟钢筋混凝土结构中点蚀引起的空间变异性。然后将其扩展到时间相关域以反映劣化过程。这些都是根据项目中生成的实验数据进行校准的。同时，开发了一种新的技术，将这些空间模型的时间相关的结构可靠性分析程序。这些成果将加强基础设施决策的工程风险评估。