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Reliability, risk and lifetime distributions as performance indicators for life-cycle maintenance of deteriorating structures

机译：可靠性，风险和寿命分布作为恶化结构的生命周期维护的性能指标

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摘要

Structural capacity deterioration is among the main causes of increasing failure probabilities of structural systems, thus maintenance interventions are a crucial task for their rational management Several probabilistic approaches have been proposed during the last decades for the determination of cost-effective maintenance strategies based on selected performance indicators. However, benefits and drawbacks of each performance indicator with respect to the others should be further analyzed. The objective of this paper is to investigate probabilistic approaches based on the annual reliability index, annual risk, and lifetime distributions for life-cycle maintenance of structural systems. Maintenance schedules are obtained for representative series, parallel, and series-parallel systems considering total restoration of component resistances whenever a prescribed threshold, based on a selected performance indicator, is reached. Effects related to different structural configurations and correlation among failure modes are investigated. The superstructure of an existing bridge is used to illustrate the presented approaches.
机译：结构能力恶化是结构系统故障概率增加的主要原因之一，因此维护干预措施是对其合理管理的关键任务。在过去的几十年中，已经提出了几种概率方法，用于根据选定的性能确定具有成本效益的维护策略指标。但是，应该进一步分析每个性能指标相对于其他指标的优缺点。本文的目的是研究基于年度可靠性指标，年度风险和结构系统生命周期维护的寿命分布的概率方法。当达到基于选定性能指标的规定阈值时，考虑组件电阻的完全恢复，就可以获得代表串联，并联和串联-并联系统的维护计划。研究了与不同结构形态相关的影响以及失效模式之间的相关性。现有桥梁的上部结构用于说明所提出的方法。

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  • 来源
    《Reliability Engineering & System Safety》 |2014年第3期|21-37|共17页
  • 作者

    Giorgio Barone; Dan M. Frangopol;

  • 作者单位

    Department of Civil and Environmental Engineering, Engineering Research Center for Advanced Technology for Large Structural Systems (ATLSS Center), Lehigh University, 117 ATLSS Dr., Bethlehem, PA 18015-4729, USA;

    Department of Civil and Environmental Engineering, Engineering Research Center for Advanced Technology for Large Structural Systems (ATLSS Center), Lehigh University, 117 ATLSS Dr., Bethlehem, PA 18015-4729, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Reliability; Risk; Lifetime distribution; Life-cycle maintenance; Deteriorating structures;

    机译：可靠性;风险;终身分配;生命周期维护;结构恶化;

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