建筑结构学报2012，Vol.33Issue(6)：110-115,6.
基于区间分析的锈蚀钢筋混凝土结构使用寿命预测
Service life prediction of corroded RC structures based on interval analysis
摘要
Abstract
Corrosion degree of a reinforcing bar is a great uncertainty.In order to reflect impacts of uncertain corrosion on life prediction of RC structures,interval analysis was introduced into service life prediction of corroded RC structures.Firstly,fundamental knowledge about interval analysis and its solving method were introduced.To avoid interval overestimation caused by interval computation principle,optimization method is an effective method to solve interval problems.Secondly,based on the certain prediction model of steel corrosion process,interval number was used to describe structural parameters and environmental parameters,and interval prediction method for structural damage caused by steel corrosion was proposed.Finally,termination criterion for service life was determined,and interval prediction method for service life prediction of corroded RC structures was put forward.The method was used to analyze an actual structure,and the analysis result indicates that the analysis process without probability model of uncertain parameters is simple and the interval result is visual and easy to accept.关键词
钢筋混凝土结构/锈蚀/区间分析/使用寿命/预测Key words
RC structure/corrosion/interval analysis/service life/prediction分类
建筑与水利引用本文复制引用
孙彬,牛荻涛,王庆霖..基于区间分析的锈蚀钢筋混凝土结构使用寿命预测[J].建筑结构学报,2012,33(6):110-115,6.基金项目
“十一五”国家科技支撑计划重大项目 （）
中国建筑科学研究院应用研究项目 （）
