Design of Bridge Inspection Programs for Structural Reliability

9319204赫恩采用结构可靠性准则对检验技术进行评价，可以为检验方案的设计提供合理依据；特别是检查技术和检查间隔的选择，以满足确保结构安全的共同要求，并提供足够的数据，以支持维修计划。检验程序设计的可靠性基础不同于对特定检验技术所能检测到的最小缺陷尺寸的简单考虑。可靠性基础识别结构中的关键构件，并要求成功地检测这些构件的损伤。该基础促进了一个选择/评估/选择周期，在这个周期中，检查程序被定制以满足特定的绩效目标。接下来将着重于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态的参数测量。＊＊＊

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. ***