Design of Bridge Inspection Programs for Structural Reliability

桥梁结构可靠性检测方案设计

• 批准号: 9319204
• 负责人: George Hearn
• 金额: $ 19.94万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-15 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9319204&HistoricalAwards=false
• 关键词: Design; Bridge; Inspection; Programs; Structural

9319204 Hearn The use of a structural reliability criterion for evaluation of inspection techniques can provide a rational basis for the design of inspection programs; specifically the selection of inspection techniques and inspection intervals to meet joint demands of ensuring structural safety and of providing sufficient data to support planning of maintenance. A reliability basis for design of inspection programs differs from the simpler consideration of minimum defect size that specific inspection techniques can detect. A reliability basis recognizes critical members in a structure and demands successful detection of damage in these. The basis promotes a selection/evaluation/selection cycle in which inspection programs are tailored to meet specific performance goals. An emphasis on instrument-based NDE techniques and an integration with bridge management systems (BMS) will be followed. Data from instrument-based inspections will be related to structural reliability and will be used to generate parametric measures of structural condition. ***

小行星9319204 采用结构可靠性准则对检测技术进行评估，可以为检测程序的设计提供合理的依据;特别是检测技术和检测间隔的选择，以满足确保结构安全和提供足够数据支持维护计划的联合需求。 设计检测程序的可靠性基础不同于简单地考虑特定检测技术可以检测到的最小缺陷尺寸。 可靠性基础识别结构中的关键构件，并要求成功检测这些构件中的损伤。 该基础促进了选择/评估/选择周期，在该周期中，检查程序被定制以满足特定的性能目标。 重点是基于仪器的无损检测技术和与桥梁管理系统（BMS）的集成。 基于仪器的检查数据将与结构可靠性相关，并将用于生成结构状况的参数测量。 ***