| 氯盐腐蚀环境下混凝土结构时变可靠度计算 |
| |
| 引用本文： | 薛鹏飞,金立兵.氯盐腐蚀环境下混凝土结构时变可靠度计算[J].水运工程,2011(2):45-49. |
| |
| 作者姓名： | 薛鹏飞 金立兵 |
| |
| 作者单位： | 1. 河南工业大学,土木建筑学院,河南,郑州,450052;浙江大学,土木工程学系,浙江,杭州,310027
2. 河南工业大学,土木建筑学院,河南,郑州,450052 |
| |
| 摘 要： | 基于Fick扩散定律,建立了氯离子在混凝土中扩散的多因素修正模型,给出了模型中参数的取值。依据可靠性理论,考虑氯离子侵蚀深度的不同分布特征,利用建立的扩散模型,说明了氯盐侵蚀环境下考虑时变效应的混凝土结构可靠度计算方法。最后给出了实际工程算例,算例结果说明,假定氯离子侵蚀深度服从正态分布带来的计算偏差并不大,却可大大简化计算过程。
|
| 关 键 词： | 混凝土结构 耐久性 时变可靠度 氯离子扩散模型 |
Time-dependent reliability computation of concrete structures based on chloride ion penetration |
| |
| XUE Peng-fei,JIN Li-bing.Time-dependent reliability computation of concrete structures based on chloride ion penetration[J].Port & Waterway Engineering,2011(2):45-49. |
| |
| Authors: | XUE Peng-fei JIN Li-bing |
| |
| Institution: | XUE Peng-fei1,2,JIN Li-bing1(1.Department of Civile Engineering,Henan University of Technology,Zhengzhou 450052,China,2.Department of Civil Engineering,Zhejiang University,Hangzhou 310027,China) |
| |
| Abstract: | A new multi-factor revision model of chloride diffusion in concrete was formulated on the basis of Fick's Law.The value of parameters in the model was given for practical application according to the literature survey and pilot calculation.By using this model and based on the reliability theory,different distribution characteristics of chloride ion corrosion depth was taken into account,then the method of time-dependent reliability calculation was specified.The results of an actual project example shows tha... |
| |
| Keywords: | concrete structure durability time-dependent reliability diffusion model of chloride ion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《水运工程》浏览原始摘要信息 |
| 点击此处可从《水运工程》下载免费的PDF全文 |
|
