基于熵度量法的铁路桥梁结构钢筋防锈策略优选研究

通过广泛的资料调研和大量的事故分析,结合相关工程经验,建立了适用于铁路桥梁结构钢筋防锈策略优选分析的指标体系,并引入管理学中较为成熟的熵度量法,提出了适用于桥梁结构防锈策略优选分析的方法。以成都至贵阳高速铁路某特大型桥梁为依托,运用该体系及方法对桥梁钢筋防锈策略进行了优选分析,其评价结果可定量表达出各类防锈策略的失效度,可为决策提供有效的理论依据,最大程度降低钢筋锈蚀对桥梁结构的影响,减少经济损失。

Optimization Study on Steel Rust-Resistance Strategy of Railway Bridge Structure Based on Entropy Measurement Method

Based on a wide range of investigations and a large amount of accident analyses,and combined with relevant project experiences,an indicator system that would be suitable for rust-resistance strategy optimization analysis of railway bridge structure was established in this paper.Moreover,After adopting the entropy measurement method which is a relatively mature analysis method in management science,a method which would also be suitable for rust-resistance strategy optimization analysis of bridge structure was put forward here.Finally,a large bridge on the Chengdu-Guiyang High-speed Railway was cited as an example,and its rust-resistance strategy was optimized and analyzed by using such indicator system and entropy measurement method above.It was found that,the optimization and analysis results by using such indicator system and method could give expression to failure degrees of all kinds of rust-resistance strategy,and could provide effective theoretical evidence so as to minimize the influence of steel rust on bridge structure and decrease the economical loss.