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本文主要讨论了海湾桥梁桥墩的维护成本优化的方法。文章首先从桥墩劣化原因出发,考虑到资金的时间价值,根据极限状态方程的变化,建立了维护维修措施评价体系和方法。即:通过混凝土构件的失效判断,选取可供选择的维护措施,然后通过建立模型,求解各种措施的最佳的组合方式(在保证失效概率小于给定极限概率条件下求解NPV(Net Present Value)的最小值)。
This article mainly discusses how to optimize the maintenance cost of Bay Bridge piers. Based on the reasons of deterioration of pier, considering the time value of funds, the article establishes the evaluation system and method of maintenance and repair according to the change of limit state equation. That is to say, through the failure judgment of concrete components, the maintenance measures that can be selected are selected, and then the optimal combination of various measures is established by establishing the model (solving the NPV (Net Present Value) under the condition that the failure probability is less than the given limit probability ) Of the minimum).