Reliability-based performance indicators for structural systems and networks
Therese P. McAllister
While member-level performance and reliability assessment procedures are well-established, it is widely recognized that the generally conservative member-oriented approach may not necessarily lead to an efficient utilization of the limited available resources when making decisions related to the management of existing deteriorating structures or lifeline systems, especially those that may be exposed to rare extreme events. For this reason, researchers have been exploring approaches to consider system performance as the primary focus of the structural safety assessment process. Specifically, system-level performance metrics and consideration of characteristics such as redundancy, robustness, and resilience are continuing to be developed and refined. The objective of this paper is to extend the information provided in the accompanying paper entitled Reliability-based performance indicators for structural members by reviewing proposals for the development and implementation of reliability-based performance criteria for civil structural systems and infrastructure networks. The paper reviews established concepts and emerging ideas of performance-based design that are especially relevant for assessing system-level safety.