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Redundancy of structural systems with and without maintenance: An approach based on lifetime functions

机译:带有和不带有维护的结构系统的冗余:一种基于寿命函数的方法

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摘要

The lifetime reliability of existing structures may be quantified by lifetime functions. Redundancy is an additional type of structural performance indicator that is defined as a measure of warning available prior to system collapse. Lifetime functions provide a basis on which lifetime redundancy can be evaluated and its quantification can be formulated. The objective of this paper is to present a novel approach for the evaluation of the lifetime redundancy of structural systems. Measures of lifetime redundancy based on lifetime functions are investigated. The effects of maintenance on lifetime functions and redundancy are also presented. Furthermore, the lifetime redundancy is incorporated in a maintenance optimization algorithm. This optimization algorithm is illustrated on an existing highway bridge.
机译:现有结构的寿命可靠性可以通过寿命函数来量化。冗余是结构性能指标的另一种类型,它定义为在系统崩溃之前可用的警告度量。生命周期功能为评估生命周期冗余和制定量化指标提供了基础。本文的目的是提出一种新颖的方法来评估结构系统的寿命冗余。研究了基于寿命函数的寿命冗余度量。还介绍了维护对生命周期功能和冗余的影响。此外,将寿命冗余合并到维护优化算法中。在现有的公路桥梁上说明了这种优化算法。

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