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原文传递 Performance Indicators for Structural Systems and Infrastructure Networks

题名：	Performance Indicators for Structural Systems and Infrastructure Networks
正文语种：	英文
作者：	M. Ghosn, M.ASCE; L. Duenas-Osorio, M.ASCE; D. M. Frangopol, Dist.M.ASCE; T. P. McAllister, M.ASCE;P. Bocchini, M.ASCE; L. Manuel, M.ASCE; B. R. Ellingwood, Dist.M.ASCE; S. Arangio; F. Bontempi;M. Shah, F.ASCE;M. Akiyama, M.ASCE; F. Biondini, M.ASCE; S. Hernandez, M.ASCE;G. Tsiatas, M.ASCE
作者单位：	City College of New York/ CUNY;Rice Univ;Lehigh Univ;National Institute of Standards and Technology;Univ, of Texas at Austin; Colorado State Univ;Politecnico di Milano;Univ, of Coruna
关键词：	Structural safety and reliability; Performance-based design; Infrastructure network; Structural redundancy; Structural robustness; Progressive collapse; Resilience.
摘要：	Establishing consistent criteria for assessing the performance of structural systems and infrastructure networks is a critical component of communities, efforts to optimize investment decisions for the upkeep and renewal of the built environment. Although member-level performance and reliability assessment procedures are currently well-established, it is widely recognized that a member-oriented approach does not necessarily lead to an efficient utilization of limited resources when making decisions related to the management of existing deteriorating structures or lifeline systems, especially those that may be exposed to extreme events. For this reason, researchers have renewed their interests in developing system-level assessment methods as a basis to modem structural and infrastructure performance evaluation and design processes. Specifically, system-level performance metrics and characteristics such as reliability, redundancy, robust-ness, resilience, and risk continue to be refined. The objective of this paper is to extend the content of the accompanying paper on reliabilitybased performance indicators for structural members by reviewing proposals for the development and implementafion of performance-based criteria for structural systems and infrastructure networks. The paper reviews established concepts of reliability design along with emerging ideas of performance-based and resilience-based design that are especially relevant for assessing and managing system-level risk. The paper also studies structural redundancy and robustness concepts as well as network-level performance metrics along with ran king approaches. Insights from these analyses reveal the need for transitioning structural and infrastructure design processes from a traditio nal comp on ent-level reliability-based approach, to one that seeks uniform levels of risk across scales (from structural systems to interconnected infrastructure networks across communities). Implementation examples are drawn from experiences with buildings, bridges, offshore oil and gas platforms, and a variety of infrastructure systems. The paper also reflects on promising avenues for pursuing practical and calibrated system-level performanee indicators that support life cycle performance, safety, reliability, and risk of structural and infrastructure systems as integral parts of resilient communities. DOI: 10.106l/(ASCE)ST.1943-541X.0001542. © 2016 American Society of Civil Engineers.
出版日期：	2016.09
出版年：	2016
期刊名称：	Journal of Structural Engineering
卷：	Vol.142
期：	NO.09
页码：	F4016003