基于构件病害的城市桥梁预防性养护模型研究

在充分研究马尔可夫过程理论的基础上,通过研究桥梁构件病害状态等级发展规律,确立了马尔可夫链构件退化模型,并以此为核心构建了一种城市桥梁预防性养护模型。最后利用北方某城市桥梁2006年至2018年检测数据,计算出构件病害状态等级转移概率矩阵,依据城市桥梁预防性养护模型,对1座同类型桥梁运营8年和14年后的预防性等级进行了预测。

Research on Urban Bridge Preventive Maintenance Model Based on Component Disease

On the basis of fully studying Markow process theory and by studying the development rule of bridge component disease state grades,the Markov chain component degradation model is established.For this reason as the core,an urban bridge preventive maintenance model is built.Finally,this paper calculates the transition probability matrix of component disease state grades by utilizing the test data of a bridge in a north city of China from 2006 to 2018.According to the preventive maintenance model of urban bridge,the preventive grade of a similar bridge after 8 years and 14 years is predicted.