桥梁加固后的经济使用寿命评估

Estimation on Economic Using Life of Reinforced Bridge

在桥梁失效准则和结构时变可靠度理论的基础上,综合考虑加固成本、延续时间内结构失效经济风险、正常维护费用、运营后的经济社会效益之间的关系,提出加固后桥梁剩余经济使用寿命的预测方法,借以评价桥梁加固效果的持续性,具有重要的理论意义。

Based on bridge invalidation rule and structural dependency of time-varying theory, it is important to present the method for prognosticating of bridge residual economic using life so as to estimate the durative of the reinforced bridge, considering comprehensively the reinforcement cost, the economic risk of structure invalidation during the prolonged time, common maintenance expenses, the relation between economy benefit and social benefit in operation.