郝伟;韦丽;陶泽;王金辉;

• 1:兰州交通大学土木工程学院

摘要(Abstract)：

为了客观准确地评估除冰盐与冻融环境下在役混凝土桥梁的耐久性，引入基于博弈论-物元可拓理论的评估模型。根据寒冷地区除冰盐与冻融环境特点，结合该环境桥梁主要病害，建立了包含混凝土抗冻能力、混凝土护筋能力、钢筋锈蚀和环境作用4个因素的多层次评价指标体系；通过物元变换构建除冰盐与冻融环境下在役混凝土桥梁耐久性评估的物元体系，计算耐久性指标对其评估等级的关联度，采用博弈论组合赋权法确定指标综合权重，根据最大关联度原则判定桥梁耐久性等级，构建了基于博弈论-物元可拓理论的评估模型。运用该模型对青海省3座混凝土桥梁进行了耐久性评估。研究表明，评估结果与实际情况相符，验证了该模型的有效性和合理性，可为该环境混凝土桥梁的维修加固提供决策依据。

关键词(KeyWords)： 安全工程;除冰盐;冻融;在役混凝土桥梁;耐久性评估;博弈论;物元可拓理论

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 郝伟;韦丽;陶泽;王金辉;

DOI: 10.13637/j.issn.1009-6094.2021.0033

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