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首页> 外文期刊>Journal of bridge engineering >Performance Life Cost-Based Maintenance Strategy Optimization for Reinforced Concrete Girder Bridges
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Performance Life Cost-Based Maintenance Strategy Optimization for Reinforced Concrete Girder Bridges

机译：钢筋混凝土梁桥基于性能寿命成本的维修策略优化

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摘要

This paper presents a maintenance strategy optimization method for RC girder bridges by considering the performance indicators, service life and life cycle maintenance cost, as criteria. The condition and reliability indices are defined as performance indicators. The deteriorated processes of performance indicators with and without maintenance actions are described as multilinear models. The life cycle maintenance planning optimization of deteriorating bridges is formulated as a multiobjective problem to be solved by an improved nondominated sorting genetic algorithm with controlled elitism. The condition index, reliability index, service life, and life cycle maintenance cost of the bridge are considered as four separate objective functions. A simply supported RC girder bridge is analyzed as an application example to demonstrate the usefulness of the proposed procedure.
机译：本文以性能指标，使用寿命和生命周期维护成本为准则，提出了一种RC梁桥的维护策略优化方法。条件和可靠性指标被定义为性能指标。具有和不具有维护措施的性能指标的恶化过程称为多线性模型。退化桥梁的生命周期维护计划优化被描述为一个多目标问题，需要通过一种具有受控精英的改进非支配排序遗传算法来解决。桥梁的状态指标，可靠性指标，使用寿命和生命周期维护成本被视为四个独立的目标函数。分析了一个简单支撑的RC梁桥作为一个应用实例，以证明所提出程序的有用性。

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