基于灰色关联和组合赋权的桥梁剩余寿命预测

打开文本图片集

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

Abstract：Inordertopredicttheremaining lifeofreinforcedconcretebridges，apredictionmodelfortheremaininglifeof reinforcedconcrete bridges was established.Thegreycorrelationcoeffcient ofeach indicatorwasobtained throughthe grey correlation method.Thecombined weightofeach indicatorwasobtainedbasedontheimprovedanalytic hierarchyprocessand theinverseentropyweightmethod.Thefinal evaluationresultofthecomponentswasobtainedthrough theweightof the indicators，andthedegre andspeedof deteriorationofthebridge werecomprehensivelyobtained.Finally，theremaining life of thebridgewasobtainedbasedonthesetendcriteria，deteriorationindex，anddeteriorationcoeficientofthestructurallife. Theresultsshowthatapplyingtheestablishedbridgeremaininglifepredictionmodel totheexamplecanpredict theremaining life of the bridge，andtheresultsareconsistentwiththeactual situation，indicating thattheestablishedbridgeremaining life prediction model is feasible and provides a new research method for predicting the remaining life of the bridge.

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

0 引言

桥梁是重要的交通设施，根据统计，到2021年年底，我国公路桥梁总数达到96.11万座、总长7380.21万 m 。（剩余7365字）