基于马尔科夫过程的钢骨混凝土耐久性预测  

Prediction of steel reinforced concrete durability based on Markov process

作　　者：哈娜[1] 王连广[1] 高学涛[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004

出　　处：《混凝土》2009年第9期50-52,共3页Concrete

基　　金：辽宁省高速公路桥梁管理系统推广应用技术研究(20080809);辽宁省重点实验室资助项目(JG-200601)

摘　　要：为了保证钢骨混凝土结构在服役期内完成的预定功能,掌握钢骨混凝土结构的退化过程,需要对钢骨混凝土结构进行预测。在总结国内外资料的基础上,运用时间连续状态离散马尔科夫过程的齐次泊松和非齐次泊松理论,给出了相关概念,总结了钢骨混凝土结构的预测过程,并采用算例实现了钢骨混凝土结构耐久性的预测,得到了等级与时间的关系曲线。研究结果表明:齐次泊松和非齐次泊松的预测结果相近,都是时间随着等级的增加而增加,预测结果也比较准确可靠。In order to ensure the steel reinforced concrete （SRC） structure to finish the preset function during service, it is necessary to predict and master its degradation process.Based on domestic and international data, the homogeneous and nonhomogeneous poisson theory continuous time discrete state Markov process are used,and the related concepts are given.The prediction process of SRC is summarized.And using example realizes the prediction of SRC.The relative curve between grade and time is obtained.The research results showed that the prediction result of homogeneous and nonhomogeneous poisson are similar.The time increased with the grade increasing.The prediction result is comparatively accurate.

关 键 词：时间连续状态离散马尔科夫过程 钢骨混凝土结构 耐久性 预测 

分 类 号：TU528.01[建筑科学—建筑技术科学]