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    李晓阳 ，王育德

 

       （河北工程大学 土木工程学院 ，邯郸 056038  )

摘   要 ：为了预测钢筋混凝土桥梁的剩余寿命 ，建立了钢筋混凝土桥梁的剩余寿命预测模型 ，通过灰色关  联度法得出各指标的灰色关联度系数 ，根据改进层次分析法及反熵权法得到各指标的组合权重 ，通过指标的权  重得出构件的最终评判结果 ，综合得到桥梁的恶化程度和恶化速度 ，最终根据设定好的结构寿命的终结标准、 恶化指数和恶化系数得出桥梁的剩余寿命。结果表明：将建立的桥梁剩余寿命预测模型应用到实例中 ，预测出  桥梁的剩余寿命 ，并且结果与实际情况相符 ，表明所建立的桥梁剩余寿命预测模型切实可行 ，为预测桥梁剩余  寿命提供了新的研究方法。

关键词：钢筋混凝土桥梁 ；灰色关联 ；组合赋权 ；剩余寿命

中图分类号：TU375            文献标志码：A      

     

文章编号： 1005- 8249   (2025)  03- 0107- 07 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .03 .020

LI Xiaoyang ,  WANG Yude

( School of Civil Engineering, HUE,Handan 056038, China)

Abstract: This study proposes a remaining service life prediction model for reinforced concrete bridges by integrating grey relational analysis and a combined weighting approach. First, the grey relational degree coefficients of each deterioration indicator were determined through grey relational analysis. Subsequently, the subjective weights of the indicators were calculated using an improved analytic hierarchy process (IAHP), while the objective weights were derived via the anti-entropy weight method. A combined weighting strategy was then implemented to synthesize both subjective and objective weights, establishing a comprehensive evaluation system for critical structural components. The deterioration degree and deterioration rate of the bridge were quantified by aggregating the weighted evaluation results of these indicators. By inversely calculating the deterioration index and deterioration coefficient from the quantified deterioration parameters, and incorporating predefined structural failure criteria, the remaining service life of the bridge was predicted. This model provides a systematic framework for assessing the residual lifespan of reinforced concrete bridges, offering theoretical and practical references for infrastructure maintenance decision-making and lifecycle management.

Key words: reinforced concrete bridge; grey correlation; combination weighting method; remaining life

基金项目： 国家自然科学基金资助项目  (52278171 ) ;  河北 省自然科学基金资助项目  (E2020402079) 。

作者简介：李晓阳  (1998—) ,  男 ，硕士研究生 ，研究方向： 结构项目管理。

收稿日期：2023 - 09 - 18