沿海在役钢筋混凝土桥梁的钢筋锈蚀模型  

Steel corrosion model of in-service RC bridge near coastal areas

作　　者：郭冬梅[1] 项贻强 程坤[1] 林士旭 李威[3] 

机构地区：[1]浙江大学土木工程系,杭州310058 [2]浙江大学唐仲英传感材料及研究中心,杭州310058 [3]台州市公路管理处,浙江台州317000

出　　处：《哈尔滨工业大学学报》2012年第12期100-104,共5页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(51178416);浙江省交通运输厅科技计划项目(2010H63)

摘　　要：为了更合理地确定在役钢筋混凝土桥梁的钢筋锈蚀模型,在综合国内外已有的钢筋锈蚀模型的基础上,进行了分类比较分析.提出了考虑荷载影响和氯离子结合能力的钢筋锈蚀模型,并以沿海地区钢筋混凝土桥梁为背景,验证了该锈蚀模型的可行性.研究表明:考虑荷载影响和氯离子结合能力的钢筋锈蚀模型更加趋于合理,采用这种钢筋锈蚀模型进行结构使用性能退化的模拟及结构使用寿命的预测将更有工程实践意义.To determine the steel corrosion model of in-service reinforced concrete（RC） bridge more reasonably,the existing research literatures on steel corrosion were reviewed and compared and a revised steel corrosion model by considering the load effect and chlorine ion combining ability was developed.The model was used in study of in-service reinforced concrete bridge near coastal areas,and its validity was verified.The result shows that the model is more reasonable when compared with the traditional chloride diffusion models.It is practical to adopt the model for simulating materials deterioration and predicting structural service life.

关 键 词：桥梁工程 钢筋混凝土桥梁 荷载影响 氯离子结合能力 钢筋锈蚀模型 

分 类 号：U445[建筑科学—桥梁与隧道工程]