Seismic Reliability Assessment of Lifeline Systems
Seismic Reliability Assessment of Lifeline Systems
复制标题
生命线系统的地震可靠性评估
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Fragiadakis
中科院分区：
文献类型：
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作者：
S. Christodoulou;M. Fragiadakis
提出了一种城市给水管网可靠性抗震评估方法。该方法是基于一般的地震评估标准，根据美国生命线联盟（ALA）的指导方针，并在本地的历史记录的关键风险的故障指标。所提出的方法是适用于UWDN在正常或异常的操作条件下，和可靠性的评估不仅考虑网络组件对地震荷载的脆弱性，但也拓扑结构的UWDN和过去的非地震性能的数据。过去的表现，获得使用管道爆裂事件的记录，利用网络特定的“生存曲线”微调的ALA建议的广义脆弱性曲线。由此产生的脆弱性分析是用来设计“修理或更换”的研究生命线的战略。
A methodology is proposed for the seismic assessment of the reliability of urban water distribution networks (UWDN). The method is based on general seismic assessment standards, as per the American Lifelines Alliance (ALA) guidelines, and on localized historical records of critical risk-of-failure metrics. The proposed methodology is applicable to UWDN under either normal or abnormal operating conditions, and the assessment of reliability considers not only the vulnerabilities of the network components against seismic loading but also the topology of an UWDN and data of past non-seismic performance. This past performance, obtained using records of pipe burst incidents, is utilized with network-specific ‘survival curves’ in fine-tuning the generalized fragility curves suggested by the ALA. The resulting vulnerability analysis is used in devising ‘repair-or-replace’ strategies for the studied lifelines.